log checks

Signed-off-by: aliamerj <aliamer19ali@gmail.com>

.github/workflows/git-town.yml

@@ -16,6 +16,6 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: git-town/action@v1
+      - uses: git-town/action@v1.2.1
         with:
-          skip-single-stacks: true
+          skip-single-stacks: true

.github/workflows/golang-test-linux.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-22.04
     outputs:
       management: ${{ steps.filter.outputs.management }}
-    steps:        
+    steps:
       - name: Checkout code
         uses: actions/checkout@v4
 
@@ -24,8 +24,8 @@ jobs:
         id: filter
         with:
           filters: |
-              management:
-                - 'management/**'
+            management:
+              - 'management/**'
 
       - name: Install Go
         uses: actions/setup-go@v5
@@ -148,7 +148,7 @@ jobs:
 
   test_client_on_docker:
     name: "Client (Docker) / Unit"
-    needs: [build-cache]
+    needs: [ build-cache ]
     runs-on: ubuntu-22.04
     steps:
       - name: Install Go
@@ -181,6 +181,7 @@ jobs:
         env:
           HOST_GOCACHE: ${{ steps.go-env.outputs.cache_dir }}
           HOST_GOMODCACHE: ${{ steps.go-env.outputs.modcache_dir }}
+          CONTAINER: "true"
         run: |
           CONTAINER_GOCACHE="/root/.cache/go-build"
           CONTAINER_GOMODCACHE="/go/pkg/mod"
@@ -198,6 +199,7 @@ jobs:
             -e GOARCH=${GOARCH_TARGET} \
             -e GOCACHE=${CONTAINER_GOCACHE} \
             -e GOMODCACHE=${CONTAINER_GOMODCACHE} \
+            -e CONTAINER=${CONTAINER} \
             golang:1.23-alpine \
             sh -c ' \
               apk update; apk add --no-cache \
@@ -211,7 +213,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        arch: [ '386','amd64' ]
+        include:
+          - arch: "386"
+            raceFlag: ""
+          - arch: "amd64"
+            raceFlag: ""
     runs-on: ubuntu-22.04
     steps:
       - name: Install Go
@@ -251,9 +257,9 @@ jobs:
       - name: Test
         run: |
           CGO_ENABLED=1 GOARCH=${{ matrix.arch }} \
-          go test \
+          go test ${{ matrix.raceFlag }} \
             -exec 'sudo' \
-            -timeout 10m ./signal/...
+            -timeout 10m ./relay/...
 
   test_signal:
     name: "Signal / Unit"

.github/workflows/mobile-build-validation.yml

@@ -43,7 +43,7 @@ jobs:
       - name: gomobile init
         run: gomobile init
       - name: build android netbird lib
-        run: PATH=$PATH:$(go env GOPATH) gomobile bind -o $GITHUB_WORKSPACE/netbird.aar -javapkg=io.netbird.gomobile -ldflags="-X golang.zx2c4.com/wireguard/ipc.socketDirectory=/data/data/io.netbird.client/cache/wireguard -X github.com/netbirdio/netbird/version.version=buildtest"  $GITHUB_WORKSPACE/client/android
+        run: PATH=$PATH:$(go env GOPATH) gomobile bind -o $GITHUB_WORKSPACE/netbird.aar -javapkg=io.netbird.gomobile -ldflags="-checklinkname=0 -X golang.zx2c4.com/wireguard/ipc.socketDirectory=/data/data/io.netbird.client/cache/wireguard -X github.com/netbirdio/netbird/version.version=buildtest"  $GITHUB_WORKSPACE/client/android
         env:
           CGO_ENABLED: 0
           ANDROID_NDK_HOME: /usr/local/lib/android/sdk/ndk/23.1.7779620

.github/workflows/release.yml

@@ -9,7 +9,7 @@ on:
   pull_request:
 
 env:
-  SIGN_PIPE_VER: "v0.0.18"
+  SIGN_PIPE_VER: "v0.0.21"
   GORELEASER_VER: "v2.3.2"
   PRODUCT_NAME: "NetBird"
   COPYRIGHT: "NetBird GmbH"
@@ -231,3 +231,17 @@ jobs:
           ref: ${{ env.SIGN_PIPE_VER }}
           token: ${{ secrets.SIGN_GITHUB_TOKEN }}
           inputs: '{ "tag": "${{ github.ref }}", "skipRelease": false }'
+
+  post_on_forum:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    needs: [trigger_signer]
+    steps:
+      - uses: Codixer/discourse-topic-github-release-action@v2.0.1
+        with:
+          discourse-api-key: ${{ secrets.DISCOURSE_RELEASES_API_KEY }}
+          discourse-base-url: https://forum.netbird.io
+          discourse-author-username: NetBird
+          discourse-category: 17
+          discourse-tags:
+            releases          

.github/workflows/test-infrastructure-files.yml

@@ -134,6 +134,7 @@ jobs:
           NETBIRD_STORE_ENGINE_MYSQL_DSN: '${{ env.NETBIRD_STORE_ENGINE_MYSQL_DSN }}$'
           CI_NETBIRD_MGMT_IDP_SIGNKEY_REFRESH: false
           CI_NETBIRD_TURN_EXTERNAL_IP: "1.2.3.4"
+          CI_NETBIRD_MGMT_DISABLE_DEFAULT_POLICY: false
 
         run: |
           set -x
@@ -180,6 +181,7 @@ jobs:
           grep -A 7 Relay management.json | egrep '"Secret": ".+"'
           grep DisablePromptLogin management.json | grep 'true'
           grep LoginFlag management.json | grep 0
+          grep DisableDefaultPolicy management.json | grep "$CI_NETBIRD_MGMT_DISABLE_DEFAULT_POLICY"
 
       - name: Install modules
         run: go mod tidy

.goreleaser.yaml

@@ -149,6 +149,7 @@ nfpms:
 dockers:
   - image_templates:
       - netbirdio/netbird:{{ .Version }}-amd64
+      - ghcr.io/netbirdio/netbird:{{ .Version }}-amd64
     ids:
       - netbird
     goarch: amd64
@@ -164,6 +165,7 @@ dockers:
       - "--label=maintainer=dev@netbird.io"
   - image_templates:
       - netbirdio/netbird:{{ .Version }}-arm64v8
+      - ghcr.io/netbirdio/netbird:{{ .Version }}-arm64v8
     ids:
       - netbird
     goarch: arm64

README.md

@@ -14,6 +14,9 @@
     <br>
     <a href="https://docs.netbird.io/slack-url">
         <img src="https://img.shields.io/badge/slack-@netbird-red.svg?logo=slack"/>
+     </a>
+    <a href="https://forum.netbird.io">
+        <img src="https://img.shields.io/badge/community forum-@netbird-red.svg?logo=discourse"/>
      </a>  
      <br>
     <a href="https://gurubase.io/g/netbird">
@@ -29,13 +32,13 @@
   <br/>
   See <a href="https://netbird.io/docs/">Documentation</a>
   <br/>
-   Join our <a href="https://docs.netbird.io/slack-url">Slack channel</a>
+   Join our <a href="https://docs.netbird.io/slack-url">Slack channel</a> or our <a href="https://forum.netbird.io">Community forum</a>
   <br/>
  
 </strong>
 <br>
-<a href="https://github.com/netbirdio/kubernetes-operator">
-    New: NetBird Kubernetes Operator
+<a href="https://registry.terraform.io/providers/netbirdio/netbird/latest">
+    New: NetBird terraform provider
   </a> 
 </p>
 
@@ -47,10 +50,9 @@
 
 **Secure.** NetBird enables secure remote access by applying granular access policies while allowing you to manage them intuitively from a single place. Works universally on any infrastructure.
 
-### Open-Source Network Security in a Single Platform
+### Open Source Network Security in a Single Platform
 
-
-![netbird_2](https://github.com/netbirdio/netbird/assets/700848/46bc3b73-508d-4a0e-bb9a-f465d68646ab)
+<img width="1188" alt="centralized-network-management 1" src="https://github.com/user-attachments/assets/c28cc8e4-15d2-4d2f-bb97-a6433db39d56" />
 
 ### NetBird on Lawrence Systems (Video)
 [![Watch the video](https://img.youtube.com/vi/Kwrff6h0rEw/0.jpg)](https://www.youtube.com/watch?v=Kwrff6h0rEw)

client/Dockerfile

@@ -1,6 +1,9 @@
 FROM alpine:3.21.3
 # iproute2: busybox doesn't display ip rules properly
 RUN apk add --no-cache ca-certificates ip6tables iproute2 iptables
+
+ARG NETBIRD_BINARY=netbird
+COPY ${NETBIRD_BINARY} /usr/local/bin/netbird
+
 ENV NB_FOREGROUND_MODE=true
 ENTRYPOINT [ "/usr/local/bin/netbird","up"]
-COPY netbird /usr/local/bin/netbird

client/Dockerfile-rootless

@@ -1,6 +1,7 @@
 FROM alpine:3.21.0
 
-COPY netbird /usr/local/bin/netbird
+ARG NETBIRD_BINARY=netbird
+COPY ${NETBIRD_BINARY} /usr/local/bin/netbird
 
 RUN apk add --no-cache ca-certificates \
     && adduser -D -h /var/lib/netbird netbird

client/android/client.go

@@ -59,10 +59,14 @@ type Client struct {
 	deviceName            string
 	uiVersion             string
 	networkChangeListener listener.NetworkChangeListener
+
+	connectClient *internal.ConnectClient
 }
 
 // NewClient instantiate a new Client
-func NewClient(cfgFile, deviceName string, uiVersion string, tunAdapter TunAdapter, iFaceDiscover IFaceDiscover, networkChangeListener NetworkChangeListener) *Client {
+func NewClient(cfgFile string, androidSDKVersion int, deviceName string, uiVersion string, tunAdapter TunAdapter, iFaceDiscover IFaceDiscover, networkChangeListener NetworkChangeListener) *Client {
+	execWorkaround(androidSDKVersion)
+
 	net.SetAndroidProtectSocketFn(tunAdapter.ProtectSocket)
 	return &Client{
 		cfgFile:               cfgFile,
@@ -106,8 +110,8 @@ func (c *Client) Run(urlOpener URLOpener, dns *DNSList, dnsReadyListener DnsRead
 
 	// todo do not throw error in case of cancelled context
 	ctx = internal.CtxInitState(ctx)
-	connectClient := internal.NewConnectClient(ctx, cfg, c.recorder)
-	return connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, dns.items, dnsReadyListener)
+	c.connectClient = internal.NewConnectClient(ctx, cfg, c.recorder)
+	return c.connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, dns.items, dnsReadyListener)
 }
 
 // RunWithoutLogin we apply this type of run function when the backed has been started without UI (i.e. after reboot).
@@ -132,8 +136,8 @@ func (c *Client) RunWithoutLogin(dns *DNSList, dnsReadyListener DnsReadyListener
 
 	// todo do not throw error in case of cancelled context
 	ctx = internal.CtxInitState(ctx)
-	connectClient := internal.NewConnectClient(ctx, cfg, c.recorder)
-	return connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, dns.items, dnsReadyListener)
+	c.connectClient = internal.NewConnectClient(ctx, cfg, c.recorder)
+	return c.connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, dns.items, dnsReadyListener)
 }
 
 // Stop the internal client and free the resources
@@ -174,6 +178,55 @@ func (c *Client) PeersList() *PeerInfoArray {
 	return &PeerInfoArray{items: peerInfos}
 }
 
+func (c *Client) Networks() *NetworkArray {
+	if c.connectClient == nil {
+		log.Error("not connected")
+		return nil
+	}
+
+	engine := c.connectClient.Engine()
+	if engine == nil {
+		log.Error("could not get engine")
+		return nil
+	}
+
+	routeManager := engine.GetRouteManager()
+	if routeManager == nil {
+		log.Error("could not get route manager")
+		return nil
+	}
+
+	networkArray := &NetworkArray{
+		items: make([]Network, 0),
+	}
+
+	for id, routes := range routeManager.GetClientRoutesWithNetID() {
+		if len(routes) == 0 {
+			continue
+		}
+
+		r := routes[0]
+		netStr := r.Network.String()
+		if r.IsDynamic() {
+			netStr = r.Domains.SafeString()
+		}
+
+		peer, err := c.recorder.GetPeer(routes[0].Peer)
+		if err != nil {
+			log.Errorf("could not get peer info for %s: %v", routes[0].Peer, err)
+			continue
+		}
+		network := Network{
+			Name:    string(id),
+			Network: netStr,
+			Peer:    peer.FQDN,
+			Status:  peer.ConnStatus.String(),
+		}
+		networkArray.Add(network)
+	}
+	return networkArray
+}
+
 // OnUpdatedHostDNS update the DNS servers addresses for root zones
 func (c *Client) OnUpdatedHostDNS(list *DNSList) error {
 	dnsServer, err := dns.GetServerDns()

client/android/exec.go

@@ -0,0 +1,26 @@
+//go:build android
+
+package android
+
+import (
+	"fmt"
+	_ "unsafe"
+)
+
+// https://github.com/golang/go/pull/69543/commits/aad6b3b32c81795f86bc4a9e81aad94899daf520
+// In Android version 11 and earlier, pidfd-related system calls
+// are not allowed by the seccomp policy, which causes crashes due
+// to SIGSYS signals.
+
+//go:linkname checkPidfdOnce os.checkPidfdOnce
+var checkPidfdOnce func() error
+
+func execWorkaround(androidSDKVersion int) {
+	if androidSDKVersion > 30 { // above Android 11
+		return
+	}
+
+	checkPidfdOnce = func() error {
+		return fmt.Errorf("unsupported Android version")
+	}
+}

client/android/networks.go

@@ -0,0 +1,27 @@
+//go:build android
+
+package android
+
+type Network struct {
+	Name    string
+	Network string
+	Peer    string
+	Status  string
+}
+
+type NetworkArray struct {
+	items []Network
+}
+
+func (array *NetworkArray) Add(s Network) *NetworkArray {
+	array.items = append(array.items, s)
+	return array
+}
+
+func (array *NetworkArray) Get(i int) *Network {
+	return &array.items[i]
+}
+
+func (array *NetworkArray) Size() int {
+	return len(array.items)
+}

client/android/peer_notifier.go

@@ -7,30 +7,23 @@ type PeerInfo struct {
 	ConnStatus string // Todo replace to enum
 }
 
-// PeerInfoCollection made for Java layer to get non default types as collection
-type PeerInfoCollection interface {
-	Add(s string) PeerInfoCollection
-	Get(i int) string
-	Size() int
-}
-
-// PeerInfoArray is the implementation of the PeerInfoCollection
+// PeerInfoArray is a wrapper of []PeerInfo
 type PeerInfoArray struct {
 	items []PeerInfo
 }
 
 // Add new PeerInfo to the collection
-func (array PeerInfoArray) Add(s PeerInfo) PeerInfoArray {
+func (array *PeerInfoArray) Add(s PeerInfo) *PeerInfoArray {
 	array.items = append(array.items, s)
 	return array
 }
 
 // Get return an element of the collection
-func (array PeerInfoArray) Get(i int) *PeerInfo {
+func (array *PeerInfoArray) Get(i int) *PeerInfo {
 	return &array.items[i]
 }
 
 // Size return with the size of the collection
-func (array PeerInfoArray) Size() int {
+func (array *PeerInfoArray) Size() int {
 	return len(array.items)
 }

client/android/preferences.go

@@ -4,12 +4,12 @@ import (
 	"github.com/netbirdio/netbird/client/internal"
 )
 
-// Preferences export a subset of the internal config for gomobile
+// Preferences exports a subset of the internal config for gomobile
 type Preferences struct {
 	configInput internal.ConfigInput
 }
 
-// NewPreferences create new Preferences instance
+// NewPreferences creates a new Preferences instance
 func NewPreferences(configPath string) *Preferences {
 	ci := internal.ConfigInput{
 		ConfigPath: configPath,
@@ -17,7 +17,7 @@ func NewPreferences(configPath string) *Preferences {
 	return &Preferences{ci}
 }
 
-// GetManagementURL read url from config file
+// GetManagementURL reads URL from config file
 func (p *Preferences) GetManagementURL() (string, error) {
 	if p.configInput.ManagementURL != "" {
 		return p.configInput.ManagementURL, nil
@@ -30,12 +30,12 @@ func (p *Preferences) GetManagementURL() (string, error) {
 	return cfg.ManagementURL.String(), err
 }
 
-// SetManagementURL store the given url and wait for commit
+// SetManagementURL stores the given URL and waits for commit
 func (p *Preferences) SetManagementURL(url string) {
 	p.configInput.ManagementURL = url
 }
 
-// GetAdminURL read url from config file
+// GetAdminURL reads URL from config file
 func (p *Preferences) GetAdminURL() (string, error) {
 	if p.configInput.AdminURL != "" {
 		return p.configInput.AdminURL, nil
@@ -48,12 +48,12 @@ func (p *Preferences) GetAdminURL() (string, error) {
 	return cfg.AdminURL.String(), err
 }
 
-// SetAdminURL store the given url and wait for commit
+// SetAdminURL stores the given URL and waits for commit
 func (p *Preferences) SetAdminURL(url string) {
 	p.configInput.AdminURL = url
 }
 
-// GetPreSharedKey read preshared key from config file
+// GetPreSharedKey reads pre-shared key from config file
 func (p *Preferences) GetPreSharedKey() (string, error) {
 	if p.configInput.PreSharedKey != nil {
 		return *p.configInput.PreSharedKey, nil
@@ -66,17 +66,17 @@ func (p *Preferences) GetPreSharedKey() (string, error) {
 	return cfg.PreSharedKey, err
 }
 
-// SetPreSharedKey store the given key and wait for commit
+// SetPreSharedKey stores the given key and waits for commit
 func (p *Preferences) SetPreSharedKey(key string) {
 	p.configInput.PreSharedKey = &key
 }
 
-// SetRosenpassEnabled store if rosenpass is enabled
+// SetRosenpassEnabled stores whether Rosenpass is enabled
 func (p *Preferences) SetRosenpassEnabled(enabled bool) {
 	p.configInput.RosenpassEnabled = &enabled
 }
 
-// GetRosenpassEnabled read rosenpass enabled from config file
+// GetRosenpassEnabled reads Rosenpass enabled status from config file
 func (p *Preferences) GetRosenpassEnabled() (bool, error) {
 	if p.configInput.RosenpassEnabled != nil {
 		return *p.configInput.RosenpassEnabled, nil
@@ -89,12 +89,12 @@ func (p *Preferences) GetRosenpassEnabled() (bool, error) {
 	return cfg.RosenpassEnabled, err
 }
 
-// SetRosenpassPermissive store the given permissive and wait for commit
+// SetRosenpassPermissive stores the given permissive setting and waits for commit
 func (p *Preferences) SetRosenpassPermissive(permissive bool) {
 	p.configInput.RosenpassPermissive = &permissive
 }
 
-// GetRosenpassPermissive read rosenpass permissive from config file
+// GetRosenpassPermissive reads Rosenpass permissive setting from config file
 func (p *Preferences) GetRosenpassPermissive() (bool, error) {
 	if p.configInput.RosenpassPermissive != nil {
 		return *p.configInput.RosenpassPermissive, nil
@@ -107,7 +107,119 @@ func (p *Preferences) GetRosenpassPermissive() (bool, error) {
 	return cfg.RosenpassPermissive, err
 }
 
-// Commit write out the changes into config file
+// GetDisableClientRoutes reads disable client routes setting from config file
+func (p *Preferences) GetDisableClientRoutes() (bool, error) {
+	if p.configInput.DisableClientRoutes != nil {
+		return *p.configInput.DisableClientRoutes, nil
+	}
+
+	cfg, err := internal.ReadConfig(p.configInput.ConfigPath)
+	if err != nil {
+		return false, err
+	}
+	return cfg.DisableClientRoutes, err
+}
+
+// SetDisableClientRoutes stores the given value and waits for commit
+func (p *Preferences) SetDisableClientRoutes(disable bool) {
+	p.configInput.DisableClientRoutes = &disable
+}
+
+// GetDisableServerRoutes reads disable server routes setting from config file
+func (p *Preferences) GetDisableServerRoutes() (bool, error) {
+	if p.configInput.DisableServerRoutes != nil {
+		return *p.configInput.DisableServerRoutes, nil
+	}
+
+	cfg, err := internal.ReadConfig(p.configInput.ConfigPath)
+	if err != nil {
+		return false, err
+	}
+	return cfg.DisableServerRoutes, err
+}
+
+// SetDisableServerRoutes stores the given value and waits for commit
+func (p *Preferences) SetDisableServerRoutes(disable bool) {
+	p.configInput.DisableServerRoutes = &disable
+}
+
+// GetDisableDNS reads disable DNS setting from config file
+func (p *Preferences) GetDisableDNS() (bool, error) {
+	if p.configInput.DisableDNS != nil {
+		return *p.configInput.DisableDNS, nil
+	}
+
+	cfg, err := internal.ReadConfig(p.configInput.ConfigPath)
+	if err != nil {
+		return false, err
+	}
+	return cfg.DisableDNS, err
+}
+
+// SetDisableDNS stores the given value and waits for commit
+func (p *Preferences) SetDisableDNS(disable bool) {
+	p.configInput.DisableDNS = &disable
+}
+
+// GetDisableFirewall reads disable firewall setting from config file
+func (p *Preferences) GetDisableFirewall() (bool, error) {
+	if p.configInput.DisableFirewall != nil {
+		return *p.configInput.DisableFirewall, nil
+	}
+
+	cfg, err := internal.ReadConfig(p.configInput.ConfigPath)
+	if err != nil {
+		return false, err
+	}
+	return cfg.DisableFirewall, err
+}
+
+// SetDisableFirewall stores the given value and waits for commit
+func (p *Preferences) SetDisableFirewall(disable bool) {
+	p.configInput.DisableFirewall = &disable
+}
+
+// GetServerSSHAllowed reads server SSH allowed setting from config file
+func (p *Preferences) GetServerSSHAllowed() (bool, error) {
+	if p.configInput.ServerSSHAllowed != nil {
+		return *p.configInput.ServerSSHAllowed, nil
+	}
+
+	cfg, err := internal.ReadConfig(p.configInput.ConfigPath)
+	if err != nil {
+		return false, err
+	}
+	if cfg.ServerSSHAllowed == nil {
+		// Default to false for security on Android
+		return false, nil
+	}
+	return *cfg.ServerSSHAllowed, err
+}
+
+// SetServerSSHAllowed stores the given value and waits for commit
+func (p *Preferences) SetServerSSHAllowed(allowed bool) {
+	p.configInput.ServerSSHAllowed = &allowed
+}
+
+// GetBlockInbound reads block inbound setting from config file
+func (p *Preferences) GetBlockInbound() (bool, error) {
+	if p.configInput.BlockInbound != nil {
+		return *p.configInput.BlockInbound, nil
+	}
+
+	cfg, err := internal.ReadConfig(p.configInput.ConfigPath)
+	if err != nil {
+		return false, err
+	}
+	return cfg.BlockInbound, err
+}
+
+// SetBlockInbound stores the given value and waits for commit
+func (p *Preferences) SetBlockInbound(block bool) {
+	p.configInput.BlockInbound = &block
+}
+
+// Commit writes out the changes to the config file
 func (p *Preferences) Commit() error {
 	_, err := internal.UpdateOrCreateConfig(p.configInput)
 	return err

client/cmd/debug.go

@@ -17,10 +17,18 @@ import (
 	"github.com/netbirdio/netbird/client/server"
 	nbstatus "github.com/netbirdio/netbird/client/status"
 	mgmProto "github.com/netbirdio/netbird/management/proto"
+	"github.com/netbirdio/netbird/upload-server/types"
 )
 
 const errCloseConnection = "Failed to close connection: %v"
 
+var (
+	logFileCount        uint32
+	systemInfoFlag      bool
+	uploadBundleFlag    bool
+	uploadBundleURLFlag string
+)
+
 var debugCmd = &cobra.Command{
 	Use:   "debug",
 	Short: "Debugging commands",
@@ -88,12 +96,13 @@ func debugBundle(cmd *cobra.Command, _ []string) error {
 
 	client := proto.NewDaemonServiceClient(conn)
 	request := &proto.DebugBundleRequest{
-		Anonymize:  anonymizeFlag,
-		Status:     getStatusOutput(cmd, anonymizeFlag),
-		SystemInfo: debugSystemInfoFlag,
+		Anonymize:    anonymizeFlag,
+		Status:       getStatusOutput(cmd, anonymizeFlag),
+		SystemInfo:   systemInfoFlag,
+		LogFileCount: logFileCount,
 	}
-	if debugUploadBundle {
-		request.UploadURL = debugUploadBundleURL
+	if uploadBundleFlag {
+		request.UploadURL = uploadBundleURLFlag
 	}
 	resp, err := client.DebugBundle(cmd.Context(), request)
 	if err != nil {
@@ -105,7 +114,7 @@ func debugBundle(cmd *cobra.Command, _ []string) error {
 		return fmt.Errorf("upload failed: %s", resp.GetUploadFailureReason())
 	}
 
-	if debugUploadBundle {
+	if uploadBundleFlag {
 		cmd.Printf("Upload file key:\n%s\n", resp.GetUploadedKey())
 	}
 
@@ -223,12 +232,13 @@ func runForDuration(cmd *cobra.Command, args []string) error {
 	headerPreDown := fmt.Sprintf("----- Netbird pre-down - Timestamp: %s - Duration: %s", time.Now().Format(time.RFC3339), duration)
 	statusOutput = fmt.Sprintf("%s\n%s\n%s", statusOutput, headerPreDown, getStatusOutput(cmd, anonymizeFlag))
 	request := &proto.DebugBundleRequest{
-		Anonymize:  anonymizeFlag,
-		Status:     statusOutput,
-		SystemInfo: debugSystemInfoFlag,
+		Anonymize:    anonymizeFlag,
+		Status:       statusOutput,
+		SystemInfo:   systemInfoFlag,
+		LogFileCount: logFileCount,
 	}
-	if debugUploadBundle {
-		request.UploadURL = debugUploadBundleURL
+	if uploadBundleFlag {
+		request.UploadURL = uploadBundleURLFlag
 	}
 	resp, err := client.DebugBundle(cmd.Context(), request)
 	if err != nil {
@@ -255,7 +265,7 @@ func runForDuration(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("upload failed: %s", resp.GetUploadFailureReason())
 	}
 
-	if debugUploadBundle {
+	if uploadBundleFlag {
 		cmd.Printf("Upload file key:\n%s\n", resp.GetUploadedKey())
 	}
 
@@ -297,7 +307,7 @@ func getStatusOutput(cmd *cobra.Command, anon bool) string {
 		cmd.PrintErrf("Failed to get status: %v\n", err)
 	} else {
 		statusOutputString = nbstatus.ParseToFullDetailSummary(
-			nbstatus.ConvertToStatusOutputOverview(statusResp, anon, "", nil, nil, nil),
+			nbstatus.ConvertToStatusOutputOverview(statusResp, anon, "", nil, nil, nil, ""),
 		)
 	}
 	return statusOutputString
@@ -375,3 +385,15 @@ func generateDebugBundle(config *internal.Config, recorder *peer.Status, connect
 	}
 	log.Infof("Generated debug bundle from SIGUSR1 at: %s", path)
 }
+
+func init() {
+	debugBundleCmd.Flags().Uint32VarP(&logFileCount, "log-file-count", "C", 1, "Number of rotated log files to include in debug bundle")
+	debugBundleCmd.Flags().BoolVarP(&systemInfoFlag, "system-info", "S", true, "Adds system information to the debug bundle")
+	debugBundleCmd.Flags().BoolVarP(&uploadBundleFlag, "upload-bundle", "U", false, "Uploads the debug bundle to a server")
+	debugBundleCmd.Flags().StringVar(&uploadBundleURLFlag, "upload-bundle-url", types.DefaultBundleURL, "Service URL to get an URL to upload the debug bundle")
+
+	forCmd.Flags().Uint32VarP(&logFileCount, "log-file-count", "C", 1, "Number of rotated log files to include in debug bundle")
+	forCmd.Flags().BoolVarP(&systemInfoFlag, "system-info", "S", true, "Adds system information to the debug bundle")
+	forCmd.Flags().BoolVarP(&uploadBundleFlag, "upload-bundle", "U", false, "Uploads the debug bundle to a server")
+	forCmd.Flags().StringVar(&uploadBundleURLFlag, "upload-bundle-url", types.DefaultBundleURL, "Service URL to get an URL to upload the debug bundle")
+}

client/cmd/root.go

@@ -22,7 +22,6 @@ import (
 	"google.golang.org/grpc/credentials/insecure"
 
 	"github.com/netbirdio/netbird/client/internal"
-	"github.com/netbirdio/netbird/upload-server/types"
 )
 
 const (
@@ -38,10 +37,7 @@ const (
 	serverSSHAllowedFlag     = "allow-server-ssh"
 	extraIFaceBlackListFlag  = "extra-iface-blacklist"
 	dnsRouteIntervalFlag     = "dns-router-interval"
-	systemInfoFlag           = "system-info"
 	enableLazyConnectionFlag = "enable-lazy-connection"
-	uploadBundle             = "upload-bundle"
-	uploadBundleURL          = "upload-bundle-url"
 )
 
 var (
@@ -71,14 +67,10 @@ var (
 	interfaceName           string
 	wireguardPort           uint16
 	networkMonitor          bool
-	serviceName             string
 	autoConnectDisabled     bool
 	extraIFaceBlackList     []string
 	anonymizeFlag           bool
-	debugSystemInfoFlag     bool
 	dnsRouteInterval        time.Duration
-	debugUploadBundle       bool
-	debugUploadBundleURL    string
 	lazyConnEnabled         bool
 
 	rootCmd = &cobra.Command{
@@ -123,15 +115,9 @@ func init() {
 		defaultDaemonAddr = "tcp://127.0.0.1:41731"
 	}
 
-	defaultServiceName := "netbird"
-	if runtime.GOOS == "windows" {
-		defaultServiceName = "Netbird"
-	}
-
 	rootCmd.PersistentFlags().StringVar(&daemonAddr, "daemon-addr", defaultDaemonAddr, "Daemon service address to serve CLI requests [unix|tcp]://[path|host:port]")
 	rootCmd.PersistentFlags().StringVarP(&managementURL, "management-url", "m", "", fmt.Sprintf("Management Service URL [http|https]://[host]:[port] (default \"%s\")", internal.DefaultManagementURL))
 	rootCmd.PersistentFlags().StringVar(&adminURL, "admin-url", "", fmt.Sprintf("Admin Panel URL [http|https]://[host]:[port] (default \"%s\")", internal.DefaultAdminURL))
-	rootCmd.PersistentFlags().StringVarP(&serviceName, "service", "s", defaultServiceName, "Netbird system service name")
 	rootCmd.PersistentFlags().StringVarP(&configPath, "config", "c", defaultConfigPath, "Netbird config file location")
 	rootCmd.PersistentFlags().StringVarP(&logLevel, "log-level", "l", "info", "sets Netbird log level")
 	rootCmd.PersistentFlags().StringVar(&logFile, "log-file", defaultLogFile, "sets Netbird log path. If console is specified the log will be output to stdout. If syslog is specified the log will be sent to syslog daemon.")
@@ -142,7 +128,6 @@ func init() {
 	rootCmd.PersistentFlags().StringVarP(&hostName, "hostname", "n", "", "Sets a custom hostname for the device")
 	rootCmd.PersistentFlags().BoolVarP(&anonymizeFlag, "anonymize", "A", false, "anonymize IP addresses and non-netbird.io domains in logs and status output")
 
-	rootCmd.AddCommand(serviceCmd)
 	rootCmd.AddCommand(upCmd)
 	rootCmd.AddCommand(downCmd)
 	rootCmd.AddCommand(statusCmd)
@@ -153,9 +138,6 @@ func init() {
 	rootCmd.AddCommand(forwardingRulesCmd)
 	rootCmd.AddCommand(debugCmd)
 
-	serviceCmd.AddCommand(runCmd, startCmd, stopCmd, restartCmd) // service control commands are subcommands of service
-	serviceCmd.AddCommand(installCmd, uninstallCmd)              // service installer commands are subcommands of service
-
 	networksCMD.AddCommand(routesListCmd)
 	networksCMD.AddCommand(routesSelectCmd, routesDeselectCmd)
 
@@ -184,11 +166,8 @@ func init() {
 	upCmd.PersistentFlags().BoolVar(&rosenpassPermissive, rosenpassPermissiveFlag, false, "[Experimental] Enable Rosenpass in permissive mode to allow this peer to accept WireGuard connections without requiring Rosenpass functionality from peers that do not have Rosenpass enabled.")
 	upCmd.PersistentFlags().BoolVar(&serverSSHAllowed, serverSSHAllowedFlag, false, "Allow SSH server on peer. If enabled, the SSH server will be permitted")
 	upCmd.PersistentFlags().BoolVar(&autoConnectDisabled, disableAutoConnectFlag, false, "Disables auto-connect feature. If enabled, then the client won't connect automatically when the service starts.")
-	upCmd.PersistentFlags().BoolVar(&lazyConnEnabled, enableLazyConnectionFlag, false, "[Experimental] Enable the lazy connection feature. If enabled, the client will establish connections on-demand.")
+	upCmd.PersistentFlags().BoolVar(&lazyConnEnabled, enableLazyConnectionFlag, false, "[Experimental] Enable the lazy connection feature. If enabled, the client will establish connections on-demand. Note: this setting may be overridden by management configuration.")
 
-	debugCmd.PersistentFlags().BoolVarP(&debugSystemInfoFlag, systemInfoFlag, "S", true, "Adds system information to the debug bundle")
-	debugCmd.PersistentFlags().BoolVarP(&debugUploadBundle, uploadBundle, "U", false, fmt.Sprintf("Uploads the debug bundle to a server from URL defined by %s", uploadBundleURL))
-	debugCmd.PersistentFlags().StringVar(&debugUploadBundleURL, uploadBundleURL, types.DefaultBundleURL, "Service URL to get an URL to upload the debug bundle")
 }
 
 // SetupCloseHandler handles SIGTERM signal and exits with success
@@ -196,14 +175,13 @@ func SetupCloseHandler(ctx context.Context, cancel context.CancelFunc) {
 	termCh := make(chan os.Signal, 1)
 	signal.Notify(termCh, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
 	go func() {
-		done := ctx.Done()
+		defer cancel()
 		select {
-		case <-done:
+		case <-ctx.Done():
 		case <-termCh:
 		}
 
 		log.Info("shutdown signal received")
-		cancel()
 	}()
 }
 

client/cmd/service.go

@@ -1,12 +1,15 @@
+//go:build !ios && !android
+
 package cmd
 
 import (
 	"context"
+	"fmt"
 	"runtime"
+	"strings"
 	"sync"
 
 	"github.com/kardianos/service"
-	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"google.golang.org/grpc"
 
@@ -14,6 +17,16 @@ import (
 	"github.com/netbirdio/netbird/client/server"
 )
 
+var serviceCmd = &cobra.Command{
+	Use:   "service",
+	Short: "manages Netbird service",
+}
+
+var (
+	serviceName    string
+	serviceEnvVars []string
+)
+
 type program struct {
 	ctx              context.Context
 	cancel           context.CancelFunc
@@ -22,12 +35,31 @@ type program struct {
 	serverInstanceMu sync.Mutex
 }
 
+func init() {
+	defaultServiceName := "netbird"
+	if runtime.GOOS == "windows" {
+		defaultServiceName = "Netbird"
+	}
+
+	serviceCmd.AddCommand(runCmd, startCmd, stopCmd, restartCmd, svcStatusCmd, installCmd, uninstallCmd, reconfigureCmd)
+
+	rootCmd.PersistentFlags().StringVarP(&serviceName, "service", "s", defaultServiceName, "Netbird system service name")
+	serviceEnvDesc := `Sets extra environment variables for the service. ` +
+		`You can specify a comma-separated list of KEY=VALUE pairs. ` +
+		`E.g. --service-env LOG_LEVEL=debug,CUSTOM_VAR=value`
+
+	installCmd.Flags().StringSliceVar(&serviceEnvVars, "service-env", nil, serviceEnvDesc)
+	reconfigureCmd.Flags().StringSliceVar(&serviceEnvVars, "service-env", nil, serviceEnvDesc)
+
+	rootCmd.AddCommand(serviceCmd)
+}
+
 func newProgram(ctx context.Context, cancel context.CancelFunc) *program {
 	ctx = internal.CtxInitState(ctx)
 	return &program{ctx: ctx, cancel: cancel}
 }
 
-func newSVCConfig() *service.Config {
+func newSVCConfig() (*service.Config, error) {
 	config := &service.Config{
 		Name:        serviceName,
 		DisplayName: "Netbird",
@@ -36,23 +68,47 @@ func newSVCConfig() *service.Config {
 		EnvVars:     make(map[string]string),
 	}
 
+	if len(serviceEnvVars) > 0 {
+		extraEnvs, err := parseServiceEnvVars(serviceEnvVars)
+		if err != nil {
+			return nil, fmt.Errorf("parse service environment variables: %w", err)
+		}
+		config.EnvVars = extraEnvs
+	}
+
 	if runtime.GOOS == "linux" {
 		config.EnvVars["SYSTEMD_UNIT"] = serviceName
 	}
 
-	return config
+	return config, nil
 }
 
 func newSVC(prg *program, conf *service.Config) (service.Service, error) {
-	s, err := service.New(prg, conf)
-	if err != nil {
-		log.Fatal(err)
-		return nil, err
-	}
-	return s, nil
+	return service.New(prg, conf)
 }
 
-var serviceCmd = &cobra.Command{
-	Use:   "service",
-	Short: "manages Netbird service",
+func parseServiceEnvVars(envVars []string) (map[string]string, error) {
+	envMap := make(map[string]string)
+
+	for _, env := range envVars {
+		if env == "" {
+			continue
+		}
+
+		parts := strings.SplitN(env, "=", 2)
+		if len(parts) != 2 {
+			return nil, fmt.Errorf("invalid environment variable format: %s (expected KEY=VALUE)", env)
+		}
+
+		key := strings.TrimSpace(parts[0])
+		value := strings.TrimSpace(parts[1])
+
+		if key == "" {
+			return nil, fmt.Errorf("empty environment variable key in: %s", env)
+		}
+
+		envMap[key] = value
+	}
+
+	return envMap, nil
 }

client/cmd/service_controller.go

@@ -1,3 +1,5 @@
+//go:build !ios && !android
+
 package cmd
 
 import (
@@ -47,14 +49,13 @@ func (p *program) Start(svc service.Service) error {
 
 	listen, err := net.Listen(split[0], split[1])
 	if err != nil {
-		return fmt.Errorf("failed to listen daemon interface: %w", err)
+		return fmt.Errorf("listen daemon interface: %w", err)
 	}
 	go func() {
 		defer listen.Close()
 
 		if split[0] == "unix" {
-			err = os.Chmod(split[1], 0666)
-			if err != nil {
+			if err := os.Chmod(split[1], 0666); err != nil {
 				log.Errorf("failed setting daemon permissions: %v", split[1])
 				return
 			}
@@ -100,37 +101,49 @@ func (p *program) Stop(srv service.Service) error {
 	return nil
 }
 
+// Common setup for service control commands
+func setupServiceControlCommand(cmd *cobra.Command, ctx context.Context, cancel context.CancelFunc) (service.Service, error) {
+	SetFlagsFromEnvVars(rootCmd)
+	SetFlagsFromEnvVars(serviceCmd)
+
+	cmd.SetOut(cmd.OutOrStdout())
+
+	if err := handleRebrand(cmd); err != nil {
+		return nil, err
+	}
+
+	if err := util.InitLog(logLevel, logFile); err != nil {
+		return nil, fmt.Errorf("init log: %w", err)
+	}
+
+	cfg, err := newSVCConfig()
+	if err != nil {
+		return nil, fmt.Errorf("create service config: %w", err)
+	}
+
+	s, err := newSVC(newProgram(ctx, cancel), cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return s, nil
+}
+
 var runCmd = &cobra.Command{
 	Use:   "run",
 	Short: "runs Netbird as service",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		SetFlagsFromEnvVars(rootCmd)
-
-		cmd.SetOut(cmd.OutOrStdout())
-
-		err := handleRebrand(cmd)
-		if err != nil {
-			return err
-		}
-
-		err = util.InitLog(logLevel, logFile)
-		if err != nil {
-			return fmt.Errorf("failed initializing log %v", err)
-		}
-
 		ctx, cancel := context.WithCancel(cmd.Context())
+
 		SetupCloseHandler(ctx, cancel)
 		SetupDebugHandler(ctx, nil, nil, nil, logFile)
 
-		s, err := newSVC(newProgram(ctx, cancel), newSVCConfig())
+		s, err := setupServiceControlCommand(cmd, ctx, cancel)
 		if err != nil {
 			return err
 		}
-		err = s.Run()
-		if err != nil {
-			return err
-		}
-		return nil
+
+		return s.Run()
 	},
 }
 
@@ -138,31 +151,14 @@ var startCmd = &cobra.Command{
 	Use:   "start",
 	Short: "starts Netbird service",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		SetFlagsFromEnvVars(rootCmd)
-
-		cmd.SetOut(cmd.OutOrStdout())
-
-		err := handleRebrand(cmd)
-		if err != nil {
-			return err
-		}
-
-		err = util.InitLog(logLevel, logFile)
-		if err != nil {
-			return err
-		}
-
 		ctx, cancel := context.WithCancel(cmd.Context())
-
-		s, err := newSVC(newProgram(ctx, cancel), newSVCConfig())
+		s, err := setupServiceControlCommand(cmd, ctx, cancel)
 		if err != nil {
-			cmd.PrintErrln(err)
 			return err
 		}
-		err = s.Start()
-		if err != nil {
-			cmd.PrintErrln(err)
-			return err
+
+		if err := s.Start(); err != nil {
+			return fmt.Errorf("start service: %w", err)
 		}
 		cmd.Println("Netbird service has been started")
 		return nil
@@ -173,29 +169,14 @@ var stopCmd = &cobra.Command{
 	Use:   "stop",
 	Short: "stops Netbird service",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		SetFlagsFromEnvVars(rootCmd)
-
-		cmd.SetOut(cmd.OutOrStdout())
-
-		err := handleRebrand(cmd)
-		if err != nil {
-			return err
-		}
-
-		err = util.InitLog(logLevel, logFile)
-		if err != nil {
-			return fmt.Errorf("failed initializing log %v", err)
-		}
-
 		ctx, cancel := context.WithCancel(cmd.Context())
-
-		s, err := newSVC(newProgram(ctx, cancel), newSVCConfig())
+		s, err := setupServiceControlCommand(cmd, ctx, cancel)
 		if err != nil {
 			return err
 		}
-		err = s.Stop()
-		if err != nil {
-			return err
+
+		if err := s.Stop(); err != nil {
+			return fmt.Errorf("stop service: %w", err)
 		}
 		cmd.Println("Netbird service has been stopped")
 		return nil
@@ -206,31 +187,48 @@ var restartCmd = &cobra.Command{
 	Use:   "restart",
 	Short: "restarts Netbird service",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		SetFlagsFromEnvVars(rootCmd)
-
-		cmd.SetOut(cmd.OutOrStdout())
-
-		err := handleRebrand(cmd)
-		if err != nil {
-			return err
-		}
-
-		err = util.InitLog(logLevel, logFile)
-		if err != nil {
-			return fmt.Errorf("failed initializing log %v", err)
-		}
-
 		ctx, cancel := context.WithCancel(cmd.Context())
-
-		s, err := newSVC(newProgram(ctx, cancel), newSVCConfig())
+		s, err := setupServiceControlCommand(cmd, ctx, cancel)
 		if err != nil {
 			return err
 		}
-		err = s.Restart()
-		if err != nil {
-			return err
+
+		if err := s.Restart(); err != nil {
+			return fmt.Errorf("restart service: %w", err)
 		}
 		cmd.Println("Netbird service has been restarted")
 		return nil
 	},
 }
+
+var svcStatusCmd = &cobra.Command{
+	Use:   "status",
+	Short: "shows Netbird service status",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		ctx, cancel := context.WithCancel(cmd.Context())
+		s, err := setupServiceControlCommand(cmd, ctx, cancel)
+		if err != nil {
+			return err
+		}
+
+		status, err := s.Status()
+		if err != nil {
+			return fmt.Errorf("get service status: %w", err)
+		}
+
+		var statusText string
+		switch status {
+		case service.StatusRunning:
+			statusText = "Running"
+		case service.StatusStopped:
+			statusText = "Stopped"
+		case service.StatusUnknown:
+			statusText = "Unknown"
+		default:
+			statusText = fmt.Sprintf("Unknown (%d)", status)
+		}
+
+		cmd.Printf("Netbird service status: %s\n", statusText)
+		return nil
+	},
+}

client/cmd/service_installer.go

@@ -1,87 +1,121 @@
+//go:build !ios && !android
+
 package cmd
 
 import (
 	"context"
+	"errors"
+	"fmt"
 	"os"
 	"path/filepath"
 	"runtime"
 
+	"github.com/kardianos/service"
 	"github.com/spf13/cobra"
 )
 
+var ErrGetServiceStatus = fmt.Errorf("failed to get service status")
+
+// Common service command setup
+func setupServiceCommand(cmd *cobra.Command) error {
+	SetFlagsFromEnvVars(rootCmd)
+	SetFlagsFromEnvVars(serviceCmd)
+	cmd.SetOut(cmd.OutOrStdout())
+	return handleRebrand(cmd)
+}
+
+// Build service arguments for install/reconfigure
+func buildServiceArguments() []string {
+	args := []string{
+		"service",
+		"run",
+		"--config",
+		configPath,
+		"--log-level",
+		logLevel,
+		"--daemon-addr",
+		daemonAddr,
+	}
+
+	if managementURL != "" {
+		args = append(args, "--management-url", managementURL)
+	}
+
+	if logFile != "" {
+		args = append(args, "--log-file", logFile)
+	}
+
+	return args
+}
+
+// Configure platform-specific service settings
+func configurePlatformSpecificSettings(svcConfig *service.Config) error {
+	if runtime.GOOS == "linux" {
+		// Respected only by systemd systems
+		svcConfig.Dependencies = []string{"After=network.target syslog.target"}
+
+		if logFile != "console" {
+			setStdLogPath := true
+			dir := filepath.Dir(logFile)
+
+			if _, err := os.Stat(dir); err != nil {
+				if err = os.MkdirAll(dir, 0750); err != nil {
+					setStdLogPath = false
+				}
+			}
+
+			if setStdLogPath {
+				svcConfig.Option["LogOutput"] = true
+				svcConfig.Option["LogDirectory"] = dir
+			}
+		}
+	}
+
+	if runtime.GOOS == "windows" {
+		svcConfig.Option["OnFailure"] = "restart"
+	}
+
+	return nil
+}
+
+// Create fully configured service config for install/reconfigure
+func createServiceConfigForInstall() (*service.Config, error) {
+	svcConfig, err := newSVCConfig()
+	if err != nil {
+		return nil, fmt.Errorf("create service config: %w", err)
+	}
+
+	svcConfig.Arguments = buildServiceArguments()
+	if err = configurePlatformSpecificSettings(svcConfig); err != nil {
+		return nil, fmt.Errorf("configure platform-specific settings: %w", err)
+	}
+
+	return svcConfig, nil
+}
+
 var installCmd = &cobra.Command{
 	Use:   "install",
 	Short: "installs Netbird service",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		SetFlagsFromEnvVars(rootCmd)
-
-		cmd.SetOut(cmd.OutOrStdout())
-
-		err := handleRebrand(cmd)
-		if err != nil {
+		if err := setupServiceCommand(cmd); err != nil {
 			return err
 		}
 
-		svcConfig := newSVCConfig()
-
-		svcConfig.Arguments = []string{
-			"service",
-			"run",
-			"--config",
-			configPath,
-			"--log-level",
-			logLevel,
-			"--daemon-addr",
-			daemonAddr,
-		}
-
-		if managementURL != "" {
-			svcConfig.Arguments = append(svcConfig.Arguments, "--management-url", managementURL)
-		}
-
-		if logFile != "" {
-			svcConfig.Arguments = append(svcConfig.Arguments, "--log-file", logFile)
-		}
-
-		if runtime.GOOS == "linux" {
-			// Respected only by systemd systems
-			svcConfig.Dependencies = []string{"After=network.target syslog.target"}
-
-			if logFile != "console" {
-				setStdLogPath := true
-				dir := filepath.Dir(logFile)
-
-				_, err := os.Stat(dir)
-				if err != nil {
-					err = os.MkdirAll(dir, 0750)
-					if err != nil {
-						setStdLogPath = false
-					}
-				}
-
-				if setStdLogPath {
-					svcConfig.Option["LogOutput"] = true
-					svcConfig.Option["LogDirectory"] = dir
-				}
-			}
-		}
-
-		if runtime.GOOS == "windows" {
-			svcConfig.Option["OnFailure"] = "restart"
+		svcConfig, err := createServiceConfigForInstall()
+		if err != nil {
+			return err
 		}
 
 		ctx, cancel := context.WithCancel(cmd.Context())
+		defer cancel()
 
 		s, err := newSVC(newProgram(ctx, cancel), svcConfig)
 		if err != nil {
-			cmd.PrintErrln(err)
 			return err
 		}
 
-		err = s.Install()
-		if err != nil {
-			cmd.PrintErrln(err)
-			return err
+		if err := s.Install(); err != nil {
+			return fmt.Errorf("install service: %w", err)
 		}
 
 		cmd.Println("Netbird service has been installed")
@@ -93,27 +127,109 @@ var uninstallCmd = &cobra.Command{
 	Use:   "uninstall",
 	Short: "uninstalls Netbird service from system",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		SetFlagsFromEnvVars(rootCmd)
+		if err := setupServiceCommand(cmd); err != nil {
+			return err
+		}
 
-		cmd.SetOut(cmd.OutOrStdout())
+		cfg, err := newSVCConfig()
+		if err != nil {
+			return fmt.Errorf("create service config: %w", err)
+		}
 
-		err := handleRebrand(cmd)
+		ctx, cancel := context.WithCancel(cmd.Context())
+		defer cancel()
+
+		s, err := newSVC(newProgram(ctx, cancel), cfg)
+		if err != nil {
+			return err
+		}
+
+		if err := s.Uninstall(); err != nil {
+			return fmt.Errorf("uninstall service: %w", err)
+		}
+
+		cmd.Println("Netbird service has been uninstalled")
+		return nil
+	},
+}
+
+var reconfigureCmd = &cobra.Command{
+	Use:   "reconfigure",
+	Short: "reconfigures Netbird service with new settings",
+	Long: `Reconfigures the Netbird service with new settings without manual uninstall/install.
+This command will temporarily stop the service, update its configuration, and restart it if it was running.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if err := setupServiceCommand(cmd); err != nil {
+			return err
+		}
+
+		wasRunning, err := isServiceRunning()
+		if err != nil && !errors.Is(err, ErrGetServiceStatus) {
+			return fmt.Errorf("check service status: %w", err)
+		}
+
+		svcConfig, err := createServiceConfigForInstall()
 		if err != nil {
 			return err
 		}
 
 		ctx, cancel := context.WithCancel(cmd.Context())
+		defer cancel()
 
-		s, err := newSVC(newProgram(ctx, cancel), newSVCConfig())
+		s, err := newSVC(newProgram(ctx, cancel), svcConfig)
 		if err != nil {
-			return err
+			return fmt.Errorf("create service: %w", err)
 		}
 
-		err = s.Uninstall()
-		if err != nil {
-			return err
+		if wasRunning {
+			cmd.Println("Stopping Netbird service...")
+			if err := s.Stop(); err != nil {
+				cmd.Printf("Warning: failed to stop service: %v\n", err)
+			}
 		}
-		cmd.Println("Netbird service has been uninstalled")
+
+		cmd.Println("Removing existing service configuration...")
+		if err := s.Uninstall(); err != nil {
+			return fmt.Errorf("uninstall existing service: %w", err)
+		}
+
+		cmd.Println("Installing service with new configuration...")
+		if err := s.Install(); err != nil {
+			return fmt.Errorf("install service with new config: %w", err)
+		}
+
+		if wasRunning {
+			cmd.Println("Starting Netbird service...")
+			if err := s.Start(); err != nil {
+				return fmt.Errorf("start service after reconfigure: %w", err)
+			}
+			cmd.Println("Netbird service has been reconfigured and started")
+		} else {
+			cmd.Println("Netbird service has been reconfigured")
+		}
+
 		return nil
 	},
 }
+
+func isServiceRunning() (bool, error) {
+	cfg, err := newSVCConfig()
+	if err != nil {
+		return false, err
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	s, err := newSVC(newProgram(ctx, cancel), cfg)
+	if err != nil {
+		return false, err
+	}
+
+	status, err := s.Status()
+	if err != nil {
+		return false, fmt.Errorf("%w: %w", ErrGetServiceStatus, err)
+	}
+
+	return status == service.StatusRunning, nil
+}

client/cmd/service_test.go

@@ -0,0 +1,263 @@
+package cmd
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"runtime"
+	"testing"
+	"time"
+
+	"github.com/kardianos/service"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+const (
+	serviceStartTimeout = 10 * time.Second
+	serviceStopTimeout  = 5 * time.Second
+	statusPollInterval  = 500 * time.Millisecond
+)
+
+// waitForServiceStatus waits for service to reach expected status with timeout
+func waitForServiceStatus(expectedStatus service.Status, timeout time.Duration) (bool, error) {
+	cfg, err := newSVCConfig()
+	if err != nil {
+		return false, err
+	}
+
+	ctxSvc, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	s, err := newSVC(newProgram(ctxSvc, cancel), cfg)
+	if err != nil {
+		return false, err
+	}
+
+	ctx, timeoutCancel := context.WithTimeout(context.Background(), timeout)
+	defer timeoutCancel()
+
+	ticker := time.NewTicker(statusPollInterval)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			return false, fmt.Errorf("timeout waiting for service status %v", expectedStatus)
+		case <-ticker.C:
+			status, err := s.Status()
+			if err != nil {
+				// Continue polling on transient errors
+				continue
+			}
+			if status == expectedStatus {
+				return true, nil
+			}
+		}
+	}
+}
+
+// TestServiceLifecycle tests the complete service lifecycle
+func TestServiceLifecycle(t *testing.T) {
+	// TODO: Add support for Windows and macOS
+	if runtime.GOOS != "linux" && runtime.GOOS != "freebsd" {
+		t.Skipf("Skipping service lifecycle test on unsupported OS: %s", runtime.GOOS)
+	}
+
+	if os.Getenv("CONTAINER") == "true" {
+		t.Skip("Skipping service lifecycle test in container environment")
+	}
+
+	originalServiceName := serviceName
+	serviceName = "netbirdtest" + fmt.Sprintf("%d", time.Now().Unix())
+	defer func() {
+		serviceName = originalServiceName
+	}()
+
+	tempDir := t.TempDir()
+	configPath = fmt.Sprintf("%s/netbird-test-config.json", tempDir)
+	logLevel = "info"
+	daemonAddr = fmt.Sprintf("unix://%s/netbird-test.sock", tempDir)
+
+	ctx := context.Background()
+
+	t.Run("Install", func(t *testing.T) {
+		installCmd.SetContext(ctx)
+		err := installCmd.RunE(installCmd, []string{})
+		require.NoError(t, err)
+
+		cfg, err := newSVCConfig()
+		require.NoError(t, err)
+
+		ctxSvc, cancel := context.WithCancel(context.Background())
+		defer cancel()
+
+		s, err := newSVC(newProgram(ctxSvc, cancel), cfg)
+		require.NoError(t, err)
+
+		status, err := s.Status()
+		assert.NoError(t, err)
+		assert.NotEqual(t, service.StatusUnknown, status)
+	})
+
+	t.Run("Start", func(t *testing.T) {
+		startCmd.SetContext(ctx)
+		err := startCmd.RunE(startCmd, []string{})
+		require.NoError(t, err)
+
+		running, err := waitForServiceStatus(service.StatusRunning, serviceStartTimeout)
+		require.NoError(t, err)
+		assert.True(t, running)
+	})
+
+	t.Run("Restart", func(t *testing.T) {
+		restartCmd.SetContext(ctx)
+		err := restartCmd.RunE(restartCmd, []string{})
+		require.NoError(t, err)
+
+		running, err := waitForServiceStatus(service.StatusRunning, serviceStartTimeout)
+		require.NoError(t, err)
+		assert.True(t, running)
+	})
+
+	t.Run("Reconfigure", func(t *testing.T) {
+		originalLogLevel := logLevel
+		logLevel = "debug"
+		defer func() {
+			logLevel = originalLogLevel
+		}()
+
+		reconfigureCmd.SetContext(ctx)
+		err := reconfigureCmd.RunE(reconfigureCmd, []string{})
+		require.NoError(t, err)
+
+		running, err := waitForServiceStatus(service.StatusRunning, serviceStartTimeout)
+		require.NoError(t, err)
+		assert.True(t, running)
+	})
+
+	t.Run("Stop", func(t *testing.T) {
+		stopCmd.SetContext(ctx)
+		err := stopCmd.RunE(stopCmd, []string{})
+		require.NoError(t, err)
+
+		stopped, err := waitForServiceStatus(service.StatusStopped, serviceStopTimeout)
+		require.NoError(t, err)
+		assert.True(t, stopped)
+	})
+
+	t.Run("Uninstall", func(t *testing.T) {
+		uninstallCmd.SetContext(ctx)
+		err := uninstallCmd.RunE(uninstallCmd, []string{})
+		require.NoError(t, err)
+
+		cfg, err := newSVCConfig()
+		require.NoError(t, err)
+
+		ctxSvc, cancel := context.WithCancel(context.Background())
+		defer cancel()
+
+		s, err := newSVC(newProgram(ctxSvc, cancel), cfg)
+		require.NoError(t, err)
+
+		_, err = s.Status()
+		assert.Error(t, err)
+	})
+}
+
+// TestServiceEnvVars tests environment variable parsing
+func TestServiceEnvVars(t *testing.T) {
+	tests := []struct {
+		name      string
+		envVars   []string
+		expected  map[string]string
+		expectErr bool
+	}{
+		{
+			name:    "Valid single env var",
+			envVars: []string{"LOG_LEVEL=debug"},
+			expected: map[string]string{
+				"LOG_LEVEL": "debug",
+			},
+		},
+		{
+			name:    "Valid multiple env vars",
+			envVars: []string{"LOG_LEVEL=debug", "CUSTOM_VAR=value"},
+			expected: map[string]string{
+				"LOG_LEVEL":  "debug",
+				"CUSTOM_VAR": "value",
+			},
+		},
+		{
+			name:    "Env var with spaces",
+			envVars: []string{" KEY = value "},
+			expected: map[string]string{
+				"KEY": "value",
+			},
+		},
+		{
+			name:      "Invalid format - no equals",
+			envVars:   []string{"INVALID"},
+			expectErr: true,
+		},
+		{
+			name:      "Invalid format - empty key",
+			envVars:   []string{"=value"},
+			expectErr: true,
+		},
+		{
+			name:    "Empty value is valid",
+			envVars: []string{"KEY="},
+			expected: map[string]string{
+				"KEY": "",
+			},
+		},
+		{
+			name:     "Empty slice",
+			envVars:  []string{},
+			expected: map[string]string{},
+		},
+		{
+			name:     "Empty string in slice",
+			envVars:  []string{"", "KEY=value", ""},
+			expected: map[string]string{"KEY": "value"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result, err := parseServiceEnvVars(tt.envVars)
+
+			if tt.expectErr {
+				assert.Error(t, err)
+			} else {
+				require.NoError(t, err)
+				assert.Equal(t, tt.expected, result)
+			}
+		})
+	}
+}
+
+// TestServiceConfigWithEnvVars tests service config creation with env vars
+func TestServiceConfigWithEnvVars(t *testing.T) {
+	originalServiceName := serviceName
+	originalServiceEnvVars := serviceEnvVars
+	defer func() {
+		serviceName = originalServiceName
+		serviceEnvVars = originalServiceEnvVars
+	}()
+
+	serviceName = "test-service"
+	serviceEnvVars = []string{"TEST_VAR=test_value", "ANOTHER_VAR=another_value"}
+
+	cfg, err := newSVCConfig()
+	require.NoError(t, err)
+
+	assert.Equal(t, "test-service", cfg.Name)
+	assert.Equal(t, "test_value", cfg.EnvVars["TEST_VAR"])
+	assert.Equal(t, "another_value", cfg.EnvVars["ANOTHER_VAR"])
+
+	if runtime.GOOS == "linux" {
+		assert.Equal(t, "test-service", cfg.EnvVars["SYSTEMD_UNIT"])
+	}
+}

client/cmd/status.go

@@ -26,6 +26,7 @@ var (
 	statusFilter         string
 	ipsFilterMap         map[string]struct{}
 	prefixNamesFilterMap map[string]struct{}
+	connectionTypeFilter string
 )
 
 var statusCmd = &cobra.Command{
@@ -45,6 +46,7 @@ func init() {
 	statusCmd.PersistentFlags().StringSliceVar(&ipsFilter, "filter-by-ips", []string{}, "filters the detailed output by a list of one or more IPs, e.g., --filter-by-ips 100.64.0.100,100.64.0.200")
 	statusCmd.PersistentFlags().StringSliceVar(&prefixNamesFilter, "filter-by-names", []string{}, "filters the detailed output by a list of one or more peer FQDN or hostnames, e.g., --filter-by-names peer-a,peer-b.netbird.cloud")
 	statusCmd.PersistentFlags().StringVar(&statusFilter, "filter-by-status", "", "filters the detailed output by connection status(idle|connecting|connected), e.g., --filter-by-status connected")
+	statusCmd.PersistentFlags().StringVar(&connectionTypeFilter, "filter-by-connection-type", "", "filters the detailed output by connection type (P2P|Relayed), e.g., --filter-by-connection-type P2P")
 }
 
 func statusFunc(cmd *cobra.Command, args []string) error {
@@ -69,7 +71,10 @@ func statusFunc(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	if resp.GetStatus() == string(internal.StatusNeedsLogin) || resp.GetStatus() == string(internal.StatusLoginFailed) {
+	status := resp.GetStatus()
+
+	if status == string(internal.StatusNeedsLogin) || status == string(internal.StatusLoginFailed) ||
+		status == string(internal.StatusSessionExpired) {
 		cmd.Printf("Daemon status: %s\n\n"+
 			"Run UP command to log in with SSO (interactive login):\n\n"+
 			" netbird up \n\n"+
@@ -86,7 +91,7 @@ func statusFunc(cmd *cobra.Command, args []string) error {
 		return nil
 	}
 
-	var outputInformationHolder = nbstatus.ConvertToStatusOutputOverview(resp, anonymizeFlag, statusFilter, prefixNamesFilter, prefixNamesFilterMap, ipsFilterMap)
+	var outputInformationHolder = nbstatus.ConvertToStatusOutputOverview(resp, anonymizeFlag, statusFilter, prefixNamesFilter, prefixNamesFilterMap, ipsFilterMap, connectionTypeFilter)
 	var statusOutputString string
 	switch {
 	case detailFlag:
@@ -117,7 +122,7 @@ func getStatus(ctx context.Context) (*proto.StatusResponse, error) {
 	}
 	defer conn.Close()
 
-	resp, err := proto.NewDaemonServiceClient(conn).Status(ctx, &proto.StatusRequest{GetFullPeerStatus: true})
+	resp, err := proto.NewDaemonServiceClient(conn).Status(ctx, &proto.StatusRequest{GetFullPeerStatus: true, ShouldRunProbes: true})
 	if err != nil {
 		return nil, fmt.Errorf("status failed: %v", status.Convert(err).Message())
 	}
@@ -153,6 +158,15 @@ func parseFilters() error {
 		enableDetailFlagWhenFilterFlag()
 	}
 
+	switch strings.ToLower(connectionTypeFilter) {
+	case "", "p2p", "relayed":
+		if strings.ToLower(connectionTypeFilter) != "" {
+			enableDetailFlagWhenFilterFlag()
+		}
+	default:
+		return fmt.Errorf("wrong connection-type filter, should be one of P2P|Relayed, got: %s", connectionTypeFilter)
+	}
+
 	return nil
 }
 

client/cmd/system.go

@@ -38,5 +38,5 @@ func init() {
 
 	upCmd.PersistentFlags().BoolVar(&blockInbound, blockInboundFlag, false,
 		"Block inbound connections. If enabled, the client will not allow any inbound connections to the local machine nor routed networks.\n"+
-		"This overrides any policies received from the management service.")
+			"This overrides any policies received from the management service.")
 }

client/cmd/testutil_test.go

@@ -103,13 +103,13 @@ func startManagement(t *testing.T, config *types.Config, testFile string) (*grpc
 		Return(&types.Settings{}, nil).
 		AnyTimes()
 
-	accountManager, err := mgmt.BuildManager(context.Background(), store, peersUpdateManager, nil, "", "netbird.selfhosted", eventStore, nil, false, iv, metrics, port_forwarding.NewControllerMock(), settingsMockManager, permissionsManagerMock)
+	accountManager, err := mgmt.BuildManager(context.Background(), store, peersUpdateManager, nil, "", "netbird.selfhosted", eventStore, nil, false, iv, metrics, port_forwarding.NewControllerMock(), settingsMockManager, permissionsManagerMock, false)
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	secretsManager := mgmt.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay, settingsMockManager)
-	mgmtServer, err := mgmt.NewServer(context.Background(), config, accountManager, settingsMockManager, peersUpdateManager, secretsManager, nil, nil, nil)
+	mgmtServer, err := mgmt.NewServer(context.Background(), config, accountManager, settingsMockManager, peersUpdateManager, secretsManager, nil, nil, nil, &mgmt.MockIntegratedValidator{})
 	if err != nil {
 		t.Fatal(err)
 	}

client/cmd/trace.go

@@ -118,7 +118,7 @@ func tracePacket(cmd *cobra.Command, args []string) error {
 }
 
 func printTrace(cmd *cobra.Command, src, dst, proto string, sport, dport uint16, resp *proto.TracePacketResponse) {
-	cmd.Printf("Packet trace %s:%d -> %s:%d (%s)\n\n", src, sport, dst, dport, strings.ToUpper(proto))
+	cmd.Printf("Packet trace %s:%d → %s:%d (%s)\n\n", src, sport, dst, dport, strings.ToUpper(proto))
 
 	for _, stage := range resp.Stages {
 		if stage.ForwardingDetails != nil {

client/firewall/uspfilter/conntrack/common.go

@@ -62,5 +62,5 @@ type ConnKey struct {
 }
 
 func (c ConnKey) String() string {
-	return fmt.Sprintf("%s:%d -> %s:%d", c.SrcIP.Unmap(), c.SrcPort, c.DstIP.Unmap(), c.DstPort)
+	return fmt.Sprintf("%s:%d → %s:%d", c.SrcIP.Unmap(), c.SrcPort, c.DstIP.Unmap(), c.DstPort)
 }

client/firewall/uspfilter/conntrack/icmp.go

@@ -3,6 +3,7 @@ package conntrack
 import (
 	"context"
 	"fmt"
+	"net"
 	"net/netip"
 	"sync"
 	"time"
@@ -19,6 +20,10 @@ const (
 	DefaultICMPTimeout = 30 * time.Second
 	// ICMPCleanupInterval is how often we check for stale ICMP connections
 	ICMPCleanupInterval = 15 * time.Second
+
+	// MaxICMPPayloadLength is the maximum length of ICMP payload we consider for original packet info,
+	// which includes the IP header (20 bytes) and transport header (8 bytes)
+	MaxICMPPayloadLength = 28
 )
 
 // ICMPConnKey uniquely identifies an ICMP connection
@@ -29,7 +34,7 @@ type ICMPConnKey struct {
 }
 
 func (i ICMPConnKey) String() string {
-	return fmt.Sprintf("%s -> %s (id %d)", i.SrcIP, i.DstIP, i.ID)
+	return fmt.Sprintf("%s → %s (id %d)", i.SrcIP, i.DstIP, i.ID)
 }
 
 // ICMPConnTrack represents an ICMP connection state
@@ -50,6 +55,72 @@ type ICMPTracker struct {
 	flowLogger    nftypes.FlowLogger
 }
 
+// ICMPInfo holds ICMP type, code, and payload for lazy string formatting in logs
+type ICMPInfo struct {
+	TypeCode    layers.ICMPv4TypeCode
+	PayloadData [MaxICMPPayloadLength]byte
+	// actual length of valid data
+	PayloadLen int
+}
+
+// String implements fmt.Stringer for lazy evaluation in log messages
+func (info ICMPInfo) String() string {
+	if info.isErrorMessage() && info.PayloadLen >= MaxICMPPayloadLength {
+		if origInfo := info.parseOriginalPacket(); origInfo != "" {
+			return fmt.Sprintf("%s (original: %s)", info.TypeCode, origInfo)
+		}
+	}
+
+	return info.TypeCode.String()
+}
+
+// isErrorMessage returns true if this ICMP type carries original packet info
+func (info ICMPInfo) isErrorMessage() bool {
+	typ := info.TypeCode.Type()
+	return typ == 3 || // Destination Unreachable
+		typ == 5 || // Redirect
+		typ == 11 || // Time Exceeded
+		typ == 12 // Parameter Problem
+}
+
+// parseOriginalPacket extracts info about the original packet from ICMP payload
+func (info ICMPInfo) parseOriginalPacket() string {
+	if info.PayloadLen < MaxICMPPayloadLength {
+		return ""
+	}
+
+	// TODO: handle IPv6
+	if version := (info.PayloadData[0] >> 4) & 0xF; version != 4 {
+		return ""
+	}
+
+	protocol := info.PayloadData[9]
+	srcIP := net.IP(info.PayloadData[12:16])
+	dstIP := net.IP(info.PayloadData[16:20])
+
+	transportData := info.PayloadData[20:]
+
+	switch nftypes.Protocol(protocol) {
+	case nftypes.TCP:
+		srcPort := uint16(transportData[0])<<8 | uint16(transportData[1])
+		dstPort := uint16(transportData[2])<<8 | uint16(transportData[3])
+		return fmt.Sprintf("TCP %s:%d → %s:%d", srcIP, srcPort, dstIP, dstPort)
+
+	case nftypes.UDP:
+		srcPort := uint16(transportData[0])<<8 | uint16(transportData[1])
+		dstPort := uint16(transportData[2])<<8 | uint16(transportData[3])
+		return fmt.Sprintf("UDP %s:%d → %s:%d", srcIP, srcPort, dstIP, dstPort)
+
+	case nftypes.ICMP:
+		icmpType := transportData[0]
+		icmpCode := transportData[1]
+		return fmt.Sprintf("ICMP %s → %s (type %d code %d)", srcIP, dstIP, icmpType, icmpCode)
+
+	default:
+		return fmt.Sprintf("Proto %d %s → %s", protocol, srcIP, dstIP)
+	}
+}
+
 // NewICMPTracker creates a new ICMP connection tracker
 func NewICMPTracker(timeout time.Duration, logger *nblog.Logger, flowLogger nftypes.FlowLogger) *ICMPTracker {
 	if timeout == 0 {
@@ -93,30 +164,64 @@ func (t *ICMPTracker) updateIfExists(srcIP netip.Addr, dstIP netip.Addr, id uint
 }
 
 // TrackOutbound records an outbound ICMP connection
-func (t *ICMPTracker) TrackOutbound(srcIP netip.Addr, dstIP netip.Addr, id uint16, typecode layers.ICMPv4TypeCode, size int) {
+func (t *ICMPTracker) TrackOutbound(
+	srcIP netip.Addr,
+	dstIP netip.Addr,
+	id uint16,
+	typecode layers.ICMPv4TypeCode,
+	payload []byte,
+	size int,
+) {
 	if _, exists := t.updateIfExists(dstIP, srcIP, id, nftypes.Egress, size); !exists {
 		// if (inverted direction) conn is not tracked, track this direction
-		t.track(srcIP, dstIP, id, typecode, nftypes.Egress, nil, size)
+		t.track(srcIP, dstIP, id, typecode, nftypes.Egress, nil, payload, size)
 	}
 }
 
 // TrackInbound records an inbound ICMP Echo Request
-func (t *ICMPTracker) TrackInbound(srcIP netip.Addr, dstIP netip.Addr, id uint16, typecode layers.ICMPv4TypeCode, ruleId []byte, size int) {
-	t.track(srcIP, dstIP, id, typecode, nftypes.Ingress, ruleId, size)
+func (t *ICMPTracker) TrackInbound(
+	srcIP netip.Addr,
+	dstIP netip.Addr,
+	id uint16,
+	typecode layers.ICMPv4TypeCode,
+	ruleId []byte,
+	payload []byte,
+	size int,
+) {
+	t.track(srcIP, dstIP, id, typecode, nftypes.Ingress, ruleId, payload, size)
 }
 
 // track is the common implementation for tracking both inbound and outbound ICMP connections
-func (t *ICMPTracker) track(srcIP netip.Addr, dstIP netip.Addr, id uint16, typecode layers.ICMPv4TypeCode, direction nftypes.Direction, ruleId []byte, size int) {
+func (t *ICMPTracker) track(
+	srcIP netip.Addr,
+	dstIP netip.Addr,
+	id uint16,
+	typecode layers.ICMPv4TypeCode,
+	direction nftypes.Direction,
+	ruleId []byte,
+	payload []byte,
+	size int,
+) {
 	key, exists := t.updateIfExists(srcIP, dstIP, id, direction, size)
 	if exists {
 		return
 	}
 
 	typ, code := typecode.Type(), typecode.Code()
+	icmpInfo := ICMPInfo{
+		TypeCode: typecode,
+	}
+	if len(payload) > 0 {
+		icmpInfo.PayloadLen = len(payload)
+		if icmpInfo.PayloadLen > MaxICMPPayloadLength {
+			icmpInfo.PayloadLen = MaxICMPPayloadLength
+		}
+		copy(icmpInfo.PayloadData[:], payload[:icmpInfo.PayloadLen])
+	}
 
 	// non echo requests don't need tracking
 	if typ != uint8(layers.ICMPv4TypeEchoRequest) {
-		t.logger.Trace("New %s ICMP connection %s type %d code %d", direction, key, typ, code)
+		t.logger.Trace("New %s ICMP connection %s - %s", direction, key, icmpInfo)
 		t.sendStartEvent(direction, srcIP, dstIP, typ, code, ruleId, size)
 		return
 	}
@@ -138,7 +243,7 @@ func (t *ICMPTracker) track(srcIP netip.Addr, dstIP netip.Addr, id uint16, typec
 	t.connections[key] = conn
 	t.mutex.Unlock()
 
-	t.logger.Trace("New %s ICMP connection %s type %d code %d", direction, key, typ, code)
+	t.logger.Trace("New %s ICMP connection %s - %s", direction, key, icmpInfo)
 	t.sendEvent(nftypes.TypeStart, conn, ruleId)
 }
 

client/firewall/uspfilter/conntrack/icmp_test.go

@@ -15,7 +15,7 @@ func BenchmarkICMPTracker(b *testing.B) {
 
 		b.ResetTimer()
 		for i := 0; i < b.N; i++ {
-			tracker.TrackOutbound(srcIP, dstIP, uint16(i%65535), 0, 0)
+			tracker.TrackOutbound(srcIP, dstIP, uint16(i%65535), 0, []byte{}, 0)
 		}
 	})
 
@@ -28,7 +28,7 @@ func BenchmarkICMPTracker(b *testing.B) {
 
 		// Pre-populate some connections
 		for i := 0; i < 1000; i++ {
-			tracker.TrackOutbound(srcIP, dstIP, uint16(i), 0, 0)
+			tracker.TrackOutbound(srcIP, dstIP, uint16(i), 0, []byte{}, 0)
 		}
 
 		b.ResetTimer()

client/firewall/uspfilter/filter.go

@@ -104,6 +104,12 @@ type Manager struct {
 	flowLogger  nftypes.FlowLogger
 
 	blockRule firewall.Rule
+
+	// Internal 1:1 DNAT
+	dnatEnabled  atomic.Bool
+	dnatMappings map[netip.Addr]netip.Addr
+	dnatMutex    sync.RWMutex
+	dnatBiMap    *biDNATMap
 }
 
 // decoder for packages
@@ -189,6 +195,7 @@ func create(iface common.IFaceMapper, nativeFirewall firewall.Manager, disableSe
 		flowLogger:          flowLogger,
 		netstack:            netstack.IsEnabled(),
 		localForwarding:     enableLocalForwarding,
+		dnatMappings:        make(map[netip.Addr]netip.Addr),
 	}
 	m.routingEnabled.Store(false)
 
@@ -519,22 +526,6 @@ func (m *Manager) SetLegacyManagement(isLegacy bool) error {
 // Flush doesn't need to be implemented for this manager
 func (m *Manager) Flush() error { return nil }
 
-// AddDNATRule adds a DNAT rule
-func (m *Manager) AddDNATRule(rule firewall.ForwardRule) (firewall.Rule, error) {
-	if m.nativeFirewall == nil {
-		return nil, errNatNotSupported
-	}
-	return m.nativeFirewall.AddDNATRule(rule)
-}
-
-// DeleteDNATRule deletes a DNAT rule
-func (m *Manager) DeleteDNATRule(rule firewall.Rule) error {
-	if m.nativeFirewall == nil {
-		return errNatNotSupported
-	}
-	return m.nativeFirewall.DeleteDNATRule(rule)
-}
-
 // UpdateSet updates the rule destinations associated with the given set
 // by merging the existing prefixes with the new ones, then deduplicating.
 func (m *Manager) UpdateSet(set firewall.Set, prefixes []netip.Prefix) error {
@@ -581,14 +572,14 @@ func (m *Manager) UpdateSet(set firewall.Set, prefixes []netip.Prefix) error {
 	return nil
 }
 
-// DropOutgoing filter outgoing packets
-func (m *Manager) DropOutgoing(packetData []byte, size int) bool {
-	return m.processOutgoingHooks(packetData, size)
+// FilterOutBound filters outgoing packets
+func (m *Manager) FilterOutbound(packetData []byte, size int) bool {
+	return m.filterOutbound(packetData, size)
 }
 
-// DropIncoming filter incoming packets
-func (m *Manager) DropIncoming(packetData []byte, size int) bool {
-	return m.dropFilter(packetData, size)
+// FilterInbound filters incoming packets
+func (m *Manager) FilterInbound(packetData []byte, size int) bool {
+	return m.filterInbound(packetData, size)
 }
 
 // UpdateLocalIPs updates the list of local IPs
@@ -596,7 +587,7 @@ func (m *Manager) UpdateLocalIPs() error {
 	return m.localipmanager.UpdateLocalIPs(m.wgIface)
 }
 
-func (m *Manager) processOutgoingHooks(packetData []byte, size int) bool {
+func (m *Manager) filterOutbound(packetData []byte, size int) bool {
 	d := m.decoders.Get().(*decoder)
 	defer m.decoders.Put(d)
 
@@ -618,8 +609,8 @@ func (m *Manager) processOutgoingHooks(packetData []byte, size int) bool {
 		return true
 	}
 
-	// for netflow we keep track even if the firewall is stateless
 	m.trackOutbound(d, srcIP, dstIP, size)
+	m.translateOutboundDNAT(packetData, d)
 
 	return false
 }
@@ -671,7 +662,7 @@ func (m *Manager) trackOutbound(d *decoder, srcIP, dstIP netip.Addr, size int) {
 		flags := getTCPFlags(&d.tcp)
 		m.tcpTracker.TrackOutbound(srcIP, dstIP, uint16(d.tcp.SrcPort), uint16(d.tcp.DstPort), flags, size)
 	case layers.LayerTypeICMPv4:
-		m.icmpTracker.TrackOutbound(srcIP, dstIP, d.icmp4.Id, d.icmp4.TypeCode, size)
+		m.icmpTracker.TrackOutbound(srcIP, dstIP, d.icmp4.Id, d.icmp4.TypeCode, d.icmp4.Payload, size)
 	}
 }
 
@@ -684,7 +675,7 @@ func (m *Manager) trackInbound(d *decoder, srcIP, dstIP netip.Addr, ruleID []byt
 		flags := getTCPFlags(&d.tcp)
 		m.tcpTracker.TrackInbound(srcIP, dstIP, uint16(d.tcp.SrcPort), uint16(d.tcp.DstPort), flags, ruleID, size)
 	case layers.LayerTypeICMPv4:
-		m.icmpTracker.TrackInbound(srcIP, dstIP, d.icmp4.Id, d.icmp4.TypeCode, ruleID, size)
+		m.icmpTracker.TrackInbound(srcIP, dstIP, d.icmp4.Id, d.icmp4.TypeCode, ruleID, d.icmp4.Payload, size)
 	}
 }
 
@@ -723,9 +714,9 @@ func (m *Manager) udpHooksDrop(dport uint16, dstIP netip.Addr, packetData []byte
 	return false
 }
 
-// dropFilter implements filtering logic for incoming packets.
+// filterInbound implements filtering logic for incoming packets.
 // If it returns true, the packet should be dropped.
-func (m *Manager) dropFilter(packetData []byte, size int) bool {
+func (m *Manager) filterInbound(packetData []byte, size int) bool {
 	d := m.decoders.Get().(*decoder)
 	defer m.decoders.Put(d)
 
@@ -747,8 +738,15 @@ func (m *Manager) dropFilter(packetData []byte, size int) bool {
 		return false
 	}
 
-	// For all inbound traffic, first check if it matches a tracked connection.
-	// This must happen before any other filtering because the packets are statefully tracked.
+	if translated := m.translateInboundReverse(packetData, d); translated {
+		// Re-decode after translation to get original addresses
+		if err := d.parser.DecodeLayers(packetData, &d.decoded); err != nil {
+			m.logger.Error("Failed to re-decode packet after reverse DNAT: %v", err)
+			return true
+		}
+		srcIP, dstIP = m.extractIPs(d)
+	}
+
 	if m.stateful && m.isValidTrackedConnection(d, srcIP, dstIP, size) {
 		return false
 	}

client/firewall/uspfilter/filter_bench_test.go

@@ -188,13 +188,13 @@ func BenchmarkCoreFiltering(b *testing.B) {
 
 				// For stateful scenarios, establish the connection
 				if sc.stateful {
-					manager.processOutgoingHooks(outbound, 0)
+					manager.filterOutbound(outbound, 0)
 				}
 
 				// Measure inbound packet processing
 				b.ResetTimer()
 				for i := 0; i < b.N; i++ {
-					manager.dropFilter(inbound, 0)
+					manager.filterInbound(inbound, 0)
 				}
 			})
 		}
@@ -220,7 +220,7 @@ func BenchmarkStateScaling(b *testing.B) {
 			for i := 0; i < count; i++ {
 				outbound := generatePacket(b, srcIPs[i], dstIPs[i],
 					uint16(1024+i), 80, layers.IPProtocolTCP)
-				manager.processOutgoingHooks(outbound, 0)
+				manager.filterOutbound(outbound, 0)
 			}
 
 			// Test packet
@@ -228,11 +228,11 @@ func BenchmarkStateScaling(b *testing.B) {
 			testIn := generatePacket(b, dstIPs[0], srcIPs[0], 80, 1024, layers.IPProtocolTCP)
 
 			// First establish our test connection
-			manager.processOutgoingHooks(testOut, 0)
+			manager.filterOutbound(testOut, 0)
 
 			b.ResetTimer()
 			for i := 0; i < b.N; i++ {
-				manager.dropFilter(testIn, 0)
+				manager.filterInbound(testIn, 0)
 			}
 		})
 	}
@@ -263,12 +263,12 @@ func BenchmarkEstablishmentOverhead(b *testing.B) {
 			inbound := generatePacket(b, dstIP, srcIP, 80, 1024, layers.IPProtocolTCP)
 
 			if sc.established {
-				manager.processOutgoingHooks(outbound, 0)
+				manager.filterOutbound(outbound, 0)
 			}
 
 			b.ResetTimer()
 			for i := 0; i < b.N; i++ {
-				manager.dropFilter(inbound, 0)
+				manager.filterInbound(inbound, 0)
 			}
 		})
 	}
@@ -426,25 +426,25 @@ func BenchmarkRoutedNetworkReturn(b *testing.B) {
 			// For stateful cases and established connections
 			if !strings.Contains(sc.name, "allow_non_wg") ||
 				(strings.Contains(sc.state, "established") || sc.state == "post_handshake") {
-				manager.processOutgoingHooks(outbound, 0)
+				manager.filterOutbound(outbound, 0)
 
 				// For TCP post-handshake, simulate full handshake
 				if sc.state == "post_handshake" {
 					// SYN
 					syn := generateTCPPacketWithFlags(b, srcIP, dstIP, 1024, 80, uint16(conntrack.TCPSyn))
-					manager.processOutgoingHooks(syn, 0)
+					manager.filterOutbound(syn, 0)
 					// SYN-ACK
 					synack := generateTCPPacketWithFlags(b, dstIP, srcIP, 80, 1024, uint16(conntrack.TCPSyn|conntrack.TCPAck))
-					manager.dropFilter(synack, 0)
+					manager.filterInbound(synack, 0)
 					// ACK
 					ack := generateTCPPacketWithFlags(b, srcIP, dstIP, 1024, 80, uint16(conntrack.TCPAck))
-					manager.processOutgoingHooks(ack, 0)
+					manager.filterOutbound(ack, 0)
 				}
 			}
 
 			b.ResetTimer()
 			for i := 0; i < b.N; i++ {
-				manager.dropFilter(inbound, 0)
+				manager.filterInbound(inbound, 0)
 			}
 		})
 	}
@@ -568,17 +568,17 @@ func BenchmarkLongLivedConnections(b *testing.B) {
 				// Initial SYN
 				syn := generateTCPPacketWithFlags(b, srcIPs[i], dstIPs[i],
 					uint16(1024+i), 80, uint16(conntrack.TCPSyn))
-				manager.processOutgoingHooks(syn, 0)
+				manager.filterOutbound(syn, 0)
 
 				// SYN-ACK
 				synack := generateTCPPacketWithFlags(b, dstIPs[i], srcIPs[i],
 					80, uint16(1024+i), uint16(conntrack.TCPSyn|conntrack.TCPAck))
-				manager.dropFilter(synack, 0)
+				manager.filterInbound(synack, 0)
 
 				// ACK
 				ack := generateTCPPacketWithFlags(b, srcIPs[i], dstIPs[i],
 					uint16(1024+i), 80, uint16(conntrack.TCPAck))
-				manager.processOutgoingHooks(ack, 0)
+				manager.filterOutbound(ack, 0)
 			}
 
 			// Prepare test packets simulating bidirectional traffic
@@ -599,9 +599,9 @@ func BenchmarkLongLivedConnections(b *testing.B) {
 
 				// Simulate bidirectional traffic
 				// First outbound data
-				manager.processOutgoingHooks(outPackets[connIdx], 0)
+				manager.filterOutbound(outPackets[connIdx], 0)
 				// Then inbound response - this is what we're actually measuring
-				manager.dropFilter(inPackets[connIdx], 0)
+				manager.filterInbound(inPackets[connIdx], 0)
 			}
 		})
 	}
@@ -700,19 +700,19 @@ func BenchmarkShortLivedConnections(b *testing.B) {
 				p := patterns[connIdx]
 
 				// Connection establishment
-				manager.processOutgoingHooks(p.syn, 0)
-				manager.dropFilter(p.synAck, 0)
-				manager.processOutgoingHooks(p.ack, 0)
+				manager.filterOutbound(p.syn, 0)
+				manager.filterInbound(p.synAck, 0)
+				manager.filterOutbound(p.ack, 0)
 
 				// Data transfer
-				manager.processOutgoingHooks(p.request, 0)
-				manager.dropFilter(p.response, 0)
+				manager.filterOutbound(p.request, 0)
+				manager.filterInbound(p.response, 0)
 
 				// Connection teardown
-				manager.processOutgoingHooks(p.finClient, 0)
-				manager.dropFilter(p.ackServer, 0)
-				manager.dropFilter(p.finServer, 0)
-				manager.processOutgoingHooks(p.ackClient, 0)
+				manager.filterOutbound(p.finClient, 0)
+				manager.filterInbound(p.ackServer, 0)
+				manager.filterInbound(p.finServer, 0)
+				manager.filterOutbound(p.ackClient, 0)
 			}
 		})
 	}
@@ -760,15 +760,15 @@ func BenchmarkParallelLongLivedConnections(b *testing.B) {
 			for i := 0; i < sc.connCount; i++ {
 				syn := generateTCPPacketWithFlags(b, srcIPs[i], dstIPs[i],
 					uint16(1024+i), 80, uint16(conntrack.TCPSyn))
-				manager.processOutgoingHooks(syn, 0)
+				manager.filterOutbound(syn, 0)
 
 				synack := generateTCPPacketWithFlags(b, dstIPs[i], srcIPs[i],
 					80, uint16(1024+i), uint16(conntrack.TCPSyn|conntrack.TCPAck))
-				manager.dropFilter(synack, 0)
+				manager.filterInbound(synack, 0)
 
 				ack := generateTCPPacketWithFlags(b, srcIPs[i], dstIPs[i],
 					uint16(1024+i), 80, uint16(conntrack.TCPAck))
-				manager.processOutgoingHooks(ack, 0)
+				manager.filterOutbound(ack, 0)
 			}
 
 			// Pre-generate test packets
@@ -790,8 +790,8 @@ func BenchmarkParallelLongLivedConnections(b *testing.B) {
 					counter++
 
 					// Simulate bidirectional traffic
-					manager.processOutgoingHooks(outPackets[connIdx], 0)
-					manager.dropFilter(inPackets[connIdx], 0)
+					manager.filterOutbound(outPackets[connIdx], 0)
+					manager.filterInbound(inPackets[connIdx], 0)
 				}
 			})
 		})
@@ -879,17 +879,17 @@ func BenchmarkParallelShortLivedConnections(b *testing.B) {
 					p := patterns[connIdx]
 
 					// Full connection lifecycle
-					manager.processOutgoingHooks(p.syn, 0)
-					manager.dropFilter(p.synAck, 0)
-					manager.processOutgoingHooks(p.ack, 0)
+					manager.filterOutbound(p.syn, 0)
+					manager.filterInbound(p.synAck, 0)
+					manager.filterOutbound(p.ack, 0)
 
-					manager.processOutgoingHooks(p.request, 0)
-					manager.dropFilter(p.response, 0)
+					manager.filterOutbound(p.request, 0)
+					manager.filterInbound(p.response, 0)
 
-					manager.processOutgoingHooks(p.finClient, 0)
-					manager.dropFilter(p.ackServer, 0)
-					manager.dropFilter(p.finServer, 0)
-					manager.processOutgoingHooks(p.ackClient, 0)
+					manager.filterOutbound(p.finClient, 0)
+					manager.filterInbound(p.ackServer, 0)
+					manager.filterInbound(p.finServer, 0)
+					manager.filterOutbound(p.ackClient, 0)
 				}
 			})
 		})

client/firewall/uspfilter/filter_filter_test.go

@@ -462,7 +462,7 @@ func TestPeerACLFiltering(t *testing.T) {
 
 	t.Run("Implicit DROP (no rules)", func(t *testing.T) {
 		packet := createTestPacket(t, "100.10.0.1", "100.10.0.100", fw.ProtocolTCP, 12345, 443)
-		isDropped := manager.DropIncoming(packet, 0)
+		isDropped := manager.FilterInbound(packet, 0)
 		require.True(t, isDropped, "Packet should be dropped when no rules exist")
 	})
 
@@ -509,7 +509,7 @@ func TestPeerACLFiltering(t *testing.T) {
 			})
 
 			packet := createTestPacket(t, tc.srcIP, tc.dstIP, tc.proto, tc.srcPort, tc.dstPort)
-			isDropped := manager.DropIncoming(packet, 0)
+			isDropped := manager.FilterInbound(packet, 0)
 			require.Equal(t, tc.shouldBeBlocked, isDropped)
 		})
 	}
@@ -1233,7 +1233,7 @@ func TestRouteACLFiltering(t *testing.T) {
 			srcIP := netip.MustParseAddr(tc.srcIP)
 			dstIP := netip.MustParseAddr(tc.dstIP)
 
-			// testing routeACLsPass only and not DropIncoming, as routed packets are dropped after being passed
+			// testing routeACLsPass only and not FilterInbound, as routed packets are dropped after being passed
 			// to the forwarder
 			_, isAllowed := manager.routeACLsPass(srcIP, dstIP, tc.proto, tc.srcPort, tc.dstPort)
 			require.Equal(t, tc.shouldPass, isAllowed)

client/firewall/uspfilter/filter_test.go

@@ -321,7 +321,7 @@ func TestNotMatchByIP(t *testing.T) {
 		return
 	}
 
-	if m.dropFilter(buf.Bytes(), 0) {
+	if m.filterInbound(buf.Bytes(), 0) {
 		t.Errorf("expected packet to be accepted")
 		return
 	}
@@ -447,7 +447,7 @@ func TestProcessOutgoingHooks(t *testing.T) {
 	require.NoError(t, err)
 
 	// Test hook gets called
-	result := manager.processOutgoingHooks(buf.Bytes(), 0)
+	result := manager.filterOutbound(buf.Bytes(), 0)
 	require.True(t, result)
 	require.True(t, hookCalled)
 
@@ -457,7 +457,7 @@ func TestProcessOutgoingHooks(t *testing.T) {
 	err = gopacket.SerializeLayers(buf, opts, ipv4)
 	require.NoError(t, err)
 
-	result = manager.processOutgoingHooks(buf.Bytes(), 0)
+	result = manager.filterOutbound(buf.Bytes(), 0)
 	require.False(t, result)
 }
 
@@ -553,7 +553,7 @@ func TestStatefulFirewall_UDPTracking(t *testing.T) {
 	require.NoError(t, err)
 
 	// Process outbound packet and verify connection tracking
-	drop := manager.DropOutgoing(outboundBuf.Bytes(), 0)
+	drop := manager.FilterOutbound(outboundBuf.Bytes(), 0)
 	require.False(t, drop, "Initial outbound packet should not be dropped")
 
 	// Verify connection was tracked
@@ -620,7 +620,7 @@ func TestStatefulFirewall_UDPTracking(t *testing.T) {
 	for _, cp := range checkPoints {
 		time.Sleep(cp.sleep)
 
-		drop = manager.dropFilter(inboundBuf.Bytes(), 0)
+		drop = manager.filterInbound(inboundBuf.Bytes(), 0)
 		require.Equal(t, cp.shouldAllow, !drop, cp.description)
 
 		// If the connection should still be valid, verify it exists
@@ -669,7 +669,7 @@ func TestStatefulFirewall_UDPTracking(t *testing.T) {
 	}
 
 	// Create a new outbound connection for invalid tests
-	drop = manager.processOutgoingHooks(outboundBuf.Bytes(), 0)
+	drop = manager.filterOutbound(outboundBuf.Bytes(), 0)
 	require.False(t, drop, "Second outbound packet should not be dropped")
 
 	for _, tc := range invalidCases {
@@ -691,7 +691,7 @@ func TestStatefulFirewall_UDPTracking(t *testing.T) {
 			require.NoError(t, err)
 
 			// Verify the invalid packet is dropped
-			drop = manager.dropFilter(testBuf.Bytes(), 0)
+			drop = manager.filterInbound(testBuf.Bytes(), 0)
 			require.True(t, drop, tc.description)
 		})
 	}

client/firewall/uspfilter/forwarder/endpoint.go

@@ -86,5 +86,5 @@ type epID stack.TransportEndpointID
 
 func (i epID) String() string {
 	// src and remote is swapped
-	return fmt.Sprintf("%s:%d -> %s:%d", i.RemoteAddress, i.RemotePort, i.LocalAddress, i.LocalPort)
+	return fmt.Sprintf("%s:%d → %s:%d", i.RemoteAddress, i.RemotePort, i.LocalAddress, i.LocalPort)
 }

client/firewall/uspfilter/forwarder/tcp.go

@@ -111,12 +111,12 @@ func (f *Forwarder) proxyTCP(id stack.TransportEndpointID, inConn *gonet.TCPConn
 
 	if errInToOut != nil {
 		if !isClosedError(errInToOut) {
-			f.logger.Error("proxyTCP: copy error (in -> out) for %s: %v", epID(id), errInToOut)
+			f.logger.Error("proxyTCP: copy error (in → out) for %s: %v", epID(id), errInToOut)
 		}
 	}
 	if errOutToIn != nil {
 		if !isClosedError(errOutToIn) {
-			f.logger.Error("proxyTCP: copy error (out -> in) for %s: %v", epID(id), errOutToIn)
+			f.logger.Error("proxyTCP: copy error (out → in) for %s: %v", epID(id), errOutToIn)
 		}
 	}
 

client/firewall/uspfilter/forwarder/udp.go

@@ -250,10 +250,10 @@ func (f *Forwarder) proxyUDP(ctx context.Context, pConn *udpPacketConn, id stack
 	wg.Wait()
 
 	if outboundErr != nil && !isClosedError(outboundErr) {
-		f.logger.Error("proxyUDP: copy error (outbound->inbound) for %s: %v", epID(id), outboundErr)
+		f.logger.Error("proxyUDP: copy error (outbound→inbound) for %s: %v", epID(id), outboundErr)
 	}
 	if inboundErr != nil && !isClosedError(inboundErr) {
-		f.logger.Error("proxyUDP: copy error (inbound->outbound) for %s: %v", epID(id), inboundErr)
+		f.logger.Error("proxyUDP: copy error (inbound→outbound) for %s: %v", epID(id), inboundErr)
 	}
 
 	var rxPackets, txPackets uint64

client/firewall/uspfilter/nat.go

@@ -0,0 +1,408 @@
+package uspfilter
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"net/netip"
+
+	"github.com/google/gopacket/layers"
+
+	firewall "github.com/netbirdio/netbird/client/firewall/manager"
+)
+
+var ErrIPv4Only = errors.New("only IPv4 is supported for DNAT")
+
+func ipv4Checksum(header []byte) uint16 {
+	if len(header) < 20 {
+		return 0
+	}
+
+	var sum1, sum2 uint32
+
+	// Parallel processing - unroll and compute two sums simultaneously
+	sum1 += uint32(binary.BigEndian.Uint16(header[0:2]))
+	sum2 += uint32(binary.BigEndian.Uint16(header[2:4]))
+	sum1 += uint32(binary.BigEndian.Uint16(header[4:6]))
+	sum2 += uint32(binary.BigEndian.Uint16(header[6:8]))
+	sum1 += uint32(binary.BigEndian.Uint16(header[8:10]))
+	// Skip checksum field at [10:12]
+	sum2 += uint32(binary.BigEndian.Uint16(header[12:14]))
+	sum1 += uint32(binary.BigEndian.Uint16(header[14:16]))
+	sum2 += uint32(binary.BigEndian.Uint16(header[16:18]))
+	sum1 += uint32(binary.BigEndian.Uint16(header[18:20]))
+
+	sum := sum1 + sum2
+
+	// Handle remaining bytes for headers > 20 bytes
+	for i := 20; i < len(header)-1; i += 2 {
+		sum += uint32(binary.BigEndian.Uint16(header[i : i+2]))
+	}
+
+	if len(header)%2 == 1 {
+		sum += uint32(header[len(header)-1]) << 8
+	}
+
+	// Optimized carry fold - single iteration handles most cases
+	sum = (sum & 0xFFFF) + (sum >> 16)
+	if sum > 0xFFFF {
+		sum++
+	}
+
+	return ^uint16(sum)
+}
+
+func icmpChecksum(data []byte) uint16 {
+	var sum1, sum2, sum3, sum4 uint32
+	i := 0
+
+	// Process 16 bytes at once with 4 parallel accumulators
+	for i <= len(data)-16 {
+		sum1 += uint32(binary.BigEndian.Uint16(data[i : i+2]))
+		sum2 += uint32(binary.BigEndian.Uint16(data[i+2 : i+4]))
+		sum3 += uint32(binary.BigEndian.Uint16(data[i+4 : i+6]))
+		sum4 += uint32(binary.BigEndian.Uint16(data[i+6 : i+8]))
+		sum1 += uint32(binary.BigEndian.Uint16(data[i+8 : i+10]))
+		sum2 += uint32(binary.BigEndian.Uint16(data[i+10 : i+12]))
+		sum3 += uint32(binary.BigEndian.Uint16(data[i+12 : i+14]))
+		sum4 += uint32(binary.BigEndian.Uint16(data[i+14 : i+16]))
+		i += 16
+	}
+
+	sum := sum1 + sum2 + sum3 + sum4
+
+	// Handle remaining bytes
+	for i < len(data)-1 {
+		sum += uint32(binary.BigEndian.Uint16(data[i : i+2]))
+		i += 2
+	}
+
+	if len(data)%2 == 1 {
+		sum += uint32(data[len(data)-1]) << 8
+	}
+
+	sum = (sum & 0xFFFF) + (sum >> 16)
+	if sum > 0xFFFF {
+		sum++
+	}
+
+	return ^uint16(sum)
+}
+
+type biDNATMap struct {
+	forward map[netip.Addr]netip.Addr
+	reverse map[netip.Addr]netip.Addr
+}
+
+func newBiDNATMap() *biDNATMap {
+	return &biDNATMap{
+		forward: make(map[netip.Addr]netip.Addr),
+		reverse: make(map[netip.Addr]netip.Addr),
+	}
+}
+
+func (b *biDNATMap) set(original, translated netip.Addr) {
+	b.forward[original] = translated
+	b.reverse[translated] = original
+}
+
+func (b *biDNATMap) delete(original netip.Addr) {
+	if translated, exists := b.forward[original]; exists {
+		delete(b.forward, original)
+		delete(b.reverse, translated)
+	}
+}
+
+func (b *biDNATMap) getTranslated(original netip.Addr) (netip.Addr, bool) {
+	translated, exists := b.forward[original]
+	return translated, exists
+}
+
+func (b *biDNATMap) getOriginal(translated netip.Addr) (netip.Addr, bool) {
+	original, exists := b.reverse[translated]
+	return original, exists
+}
+
+func (m *Manager) AddInternalDNATMapping(originalAddr, translatedAddr netip.Addr) error {
+	if !originalAddr.IsValid() || !translatedAddr.IsValid() {
+		return fmt.Errorf("invalid IP addresses")
+	}
+
+	if m.localipmanager.IsLocalIP(translatedAddr) {
+		return fmt.Errorf("cannot map to local IP: %s", translatedAddr)
+	}
+
+	m.dnatMutex.Lock()
+	defer m.dnatMutex.Unlock()
+
+	// Initialize both maps together if either is nil
+	if m.dnatMappings == nil || m.dnatBiMap == nil {
+		m.dnatMappings = make(map[netip.Addr]netip.Addr)
+		m.dnatBiMap = newBiDNATMap()
+	}
+
+	m.dnatMappings[originalAddr] = translatedAddr
+	m.dnatBiMap.set(originalAddr, translatedAddr)
+
+	if len(m.dnatMappings) == 1 {
+		m.dnatEnabled.Store(true)
+	}
+
+	return nil
+}
+
+// RemoveInternalDNATMapping removes a 1:1 IP address mapping
+func (m *Manager) RemoveInternalDNATMapping(originalAddr netip.Addr) error {
+	m.dnatMutex.Lock()
+	defer m.dnatMutex.Unlock()
+
+	if _, exists := m.dnatMappings[originalAddr]; !exists {
+		return fmt.Errorf("mapping not found for: %s", originalAddr)
+	}
+
+	delete(m.dnatMappings, originalAddr)
+	m.dnatBiMap.delete(originalAddr)
+	if len(m.dnatMappings) == 0 {
+		m.dnatEnabled.Store(false)
+	}
+
+	return nil
+}
+
+// getDNATTranslation returns the translated address if a mapping exists
+func (m *Manager) getDNATTranslation(addr netip.Addr) (netip.Addr, bool) {
+	if !m.dnatEnabled.Load() {
+		return addr, false
+	}
+
+	m.dnatMutex.RLock()
+	translated, exists := m.dnatBiMap.getTranslated(addr)
+	m.dnatMutex.RUnlock()
+	return translated, exists
+}
+
+// findReverseDNATMapping finds original address for return traffic
+func (m *Manager) findReverseDNATMapping(translatedAddr netip.Addr) (netip.Addr, bool) {
+	if !m.dnatEnabled.Load() {
+		return translatedAddr, false
+	}
+
+	m.dnatMutex.RLock()
+	original, exists := m.dnatBiMap.getOriginal(translatedAddr)
+	m.dnatMutex.RUnlock()
+	return original, exists
+}
+
+// translateOutboundDNAT applies DNAT translation to outbound packets
+func (m *Manager) translateOutboundDNAT(packetData []byte, d *decoder) bool {
+	if !m.dnatEnabled.Load() {
+		return false
+	}
+
+	if len(packetData) < 20 || d.decoded[0] != layers.LayerTypeIPv4 {
+		return false
+	}
+
+	dstIP := netip.AddrFrom4([4]byte{packetData[16], packetData[17], packetData[18], packetData[19]})
+
+	translatedIP, exists := m.getDNATTranslation(dstIP)
+	if !exists {
+		return false
+	}
+
+	if err := m.rewritePacketDestination(packetData, d, translatedIP); err != nil {
+		m.logger.Error("Failed to rewrite packet destination: %v", err)
+		return false
+	}
+
+	m.logger.Trace("DNAT: %s -> %s", dstIP, translatedIP)
+	return true
+}
+
+// translateInboundReverse applies reverse DNAT to inbound return traffic
+func (m *Manager) translateInboundReverse(packetData []byte, d *decoder) bool {
+	if !m.dnatEnabled.Load() {
+		return false
+	}
+
+	if len(packetData) < 20 || d.decoded[0] != layers.LayerTypeIPv4 {
+		return false
+	}
+
+	srcIP := netip.AddrFrom4([4]byte{packetData[12], packetData[13], packetData[14], packetData[15]})
+
+	originalIP, exists := m.findReverseDNATMapping(srcIP)
+	if !exists {
+		return false
+	}
+
+	if err := m.rewritePacketSource(packetData, d, originalIP); err != nil {
+		m.logger.Error("Failed to rewrite packet source: %v", err)
+		return false
+	}
+
+	m.logger.Trace("Reverse DNAT: %s -> %s", srcIP, originalIP)
+	return true
+}
+
+// rewritePacketDestination replaces destination IP in the packet
+func (m *Manager) rewritePacketDestination(packetData []byte, d *decoder, newIP netip.Addr) error {
+	if len(packetData) < 20 || d.decoded[0] != layers.LayerTypeIPv4 || !newIP.Is4() {
+		return ErrIPv4Only
+	}
+
+	var oldDst [4]byte
+	copy(oldDst[:], packetData[16:20])
+	newDst := newIP.As4()
+
+	copy(packetData[16:20], newDst[:])
+
+	ipHeaderLen := int(d.ip4.IHL) * 4
+	if ipHeaderLen < 20 || ipHeaderLen > len(packetData) {
+		return fmt.Errorf("invalid IP header length")
+	}
+
+	binary.BigEndian.PutUint16(packetData[10:12], 0)
+	ipChecksum := ipv4Checksum(packetData[:ipHeaderLen])
+	binary.BigEndian.PutUint16(packetData[10:12], ipChecksum)
+
+	if len(d.decoded) > 1 {
+		switch d.decoded[1] {
+		case layers.LayerTypeTCP:
+			m.updateTCPChecksum(packetData, ipHeaderLen, oldDst[:], newDst[:])
+		case layers.LayerTypeUDP:
+			m.updateUDPChecksum(packetData, ipHeaderLen, oldDst[:], newDst[:])
+		case layers.LayerTypeICMPv4:
+			m.updateICMPChecksum(packetData, ipHeaderLen)
+		}
+	}
+
+	return nil
+}
+
+// rewritePacketSource replaces the source IP address in the packet
+func (m *Manager) rewritePacketSource(packetData []byte, d *decoder, newIP netip.Addr) error {
+	if len(packetData) < 20 || d.decoded[0] != layers.LayerTypeIPv4 || !newIP.Is4() {
+		return ErrIPv4Only
+	}
+
+	var oldSrc [4]byte
+	copy(oldSrc[:], packetData[12:16])
+	newSrc := newIP.As4()
+
+	copy(packetData[12:16], newSrc[:])
+
+	ipHeaderLen := int(d.ip4.IHL) * 4
+	if ipHeaderLen < 20 || ipHeaderLen > len(packetData) {
+		return fmt.Errorf("invalid IP header length")
+	}
+
+	binary.BigEndian.PutUint16(packetData[10:12], 0)
+	ipChecksum := ipv4Checksum(packetData[:ipHeaderLen])
+	binary.BigEndian.PutUint16(packetData[10:12], ipChecksum)
+
+	if len(d.decoded) > 1 {
+		switch d.decoded[1] {
+		case layers.LayerTypeTCP:
+			m.updateTCPChecksum(packetData, ipHeaderLen, oldSrc[:], newSrc[:])
+		case layers.LayerTypeUDP:
+			m.updateUDPChecksum(packetData, ipHeaderLen, oldSrc[:], newSrc[:])
+		case layers.LayerTypeICMPv4:
+			m.updateICMPChecksum(packetData, ipHeaderLen)
+		}
+	}
+
+	return nil
+}
+
+func (m *Manager) updateTCPChecksum(packetData []byte, ipHeaderLen int, oldIP, newIP []byte) {
+	tcpStart := ipHeaderLen
+	if len(packetData) < tcpStart+18 {
+		return
+	}
+
+	checksumOffset := tcpStart + 16
+	oldChecksum := binary.BigEndian.Uint16(packetData[checksumOffset : checksumOffset+2])
+	newChecksum := incrementalUpdate(oldChecksum, oldIP, newIP)
+	binary.BigEndian.PutUint16(packetData[checksumOffset:checksumOffset+2], newChecksum)
+}
+
+func (m *Manager) updateUDPChecksum(packetData []byte, ipHeaderLen int, oldIP, newIP []byte) {
+	udpStart := ipHeaderLen
+	if len(packetData) < udpStart+8 {
+		return
+	}
+
+	checksumOffset := udpStart + 6
+	oldChecksum := binary.BigEndian.Uint16(packetData[checksumOffset : checksumOffset+2])
+
+	if oldChecksum == 0 {
+		return
+	}
+
+	newChecksum := incrementalUpdate(oldChecksum, oldIP, newIP)
+	binary.BigEndian.PutUint16(packetData[checksumOffset:checksumOffset+2], newChecksum)
+}
+
+func (m *Manager) updateICMPChecksum(packetData []byte, ipHeaderLen int) {
+	icmpStart := ipHeaderLen
+	if len(packetData) < icmpStart+8 {
+		return
+	}
+
+	icmpData := packetData[icmpStart:]
+	binary.BigEndian.PutUint16(icmpData[2:4], 0)
+	checksum := icmpChecksum(icmpData)
+	binary.BigEndian.PutUint16(icmpData[2:4], checksum)
+}
+
+// incrementalUpdate performs incremental checksum update per RFC 1624
+func incrementalUpdate(oldChecksum uint16, oldBytes, newBytes []byte) uint16 {
+	sum := uint32(^oldChecksum)
+
+	// Fast path for IPv4 addresses (4 bytes) - most common case
+	if len(oldBytes) == 4 && len(newBytes) == 4 {
+		sum += uint32(^binary.BigEndian.Uint16(oldBytes[0:2]))
+		sum += uint32(^binary.BigEndian.Uint16(oldBytes[2:4]))
+		sum += uint32(binary.BigEndian.Uint16(newBytes[0:2]))
+		sum += uint32(binary.BigEndian.Uint16(newBytes[2:4]))
+	} else {
+		// Fallback for other lengths
+		for i := 0; i < len(oldBytes)-1; i += 2 {
+			sum += uint32(^binary.BigEndian.Uint16(oldBytes[i : i+2]))
+		}
+		if len(oldBytes)%2 == 1 {
+			sum += uint32(^oldBytes[len(oldBytes)-1]) << 8
+		}
+
+		for i := 0; i < len(newBytes)-1; i += 2 {
+			sum += uint32(binary.BigEndian.Uint16(newBytes[i : i+2]))
+		}
+		if len(newBytes)%2 == 1 {
+			sum += uint32(newBytes[len(newBytes)-1]) << 8
+		}
+	}
+
+	sum = (sum & 0xFFFF) + (sum >> 16)
+	if sum > 0xFFFF {
+		sum++
+	}
+
+	return ^uint16(sum)
+}
+
+// AddDNATRule adds a DNAT rule (delegates to native firewall for port forwarding)
+func (m *Manager) AddDNATRule(rule firewall.ForwardRule) (firewall.Rule, error) {
+	if m.nativeFirewall == nil {
+		return nil, errNatNotSupported
+	}
+	return m.nativeFirewall.AddDNATRule(rule)
+}
+
+// DeleteDNATRule deletes a DNAT rule (delegates to native firewall)
+func (m *Manager) DeleteDNATRule(rule firewall.Rule) error {
+	if m.nativeFirewall == nil {
+		return errNatNotSupported
+	}
+	return m.nativeFirewall.DeleteDNATRule(rule)
+}

client/firewall/uspfilter/nat_bench_test.go

@@ -0,0 +1,416 @@
+package uspfilter
+
+import (
+	"fmt"
+	"net/netip"
+	"testing"
+
+	"github.com/google/gopacket"
+	"github.com/google/gopacket/layers"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/iface/device"
+)
+
+// BenchmarkDNATTranslation measures the performance of DNAT operations
+func BenchmarkDNATTranslation(b *testing.B) {
+	scenarios := []struct {
+		name        string
+		proto       layers.IPProtocol
+		setupDNAT   bool
+		description string
+	}{
+		{
+			name:        "tcp_with_dnat",
+			proto:       layers.IPProtocolTCP,
+			setupDNAT:   true,
+			description: "TCP packet with DNAT translation enabled",
+		},
+		{
+			name:        "tcp_without_dnat",
+			proto:       layers.IPProtocolTCP,
+			setupDNAT:   false,
+			description: "TCP packet without DNAT (baseline)",
+		},
+		{
+			name:        "udp_with_dnat",
+			proto:       layers.IPProtocolUDP,
+			setupDNAT:   true,
+			description: "UDP packet with DNAT translation enabled",
+		},
+		{
+			name:        "udp_without_dnat",
+			proto:       layers.IPProtocolUDP,
+			setupDNAT:   false,
+			description: "UDP packet without DNAT (baseline)",
+		},
+		{
+			name:        "icmp_with_dnat",
+			proto:       layers.IPProtocolICMPv4,
+			setupDNAT:   true,
+			description: "ICMP packet with DNAT translation enabled",
+		},
+		{
+			name:        "icmp_without_dnat",
+			proto:       layers.IPProtocolICMPv4,
+			setupDNAT:   false,
+			description: "ICMP packet without DNAT (baseline)",
+		},
+	}
+
+	for _, sc := range scenarios {
+		b.Run(sc.name, func(b *testing.B) {
+			manager, err := Create(&IFaceMock{
+				SetFilterFunc: func(device.PacketFilter) error { return nil },
+			}, false, flowLogger)
+			require.NoError(b, err)
+			defer func() {
+				require.NoError(b, manager.Close(nil))
+			}()
+
+			// Set logger to error level to reduce noise during benchmarking
+			manager.SetLogLevel(log.ErrorLevel)
+			defer func() {
+				// Restore to info level after benchmark
+				manager.SetLogLevel(log.InfoLevel)
+			}()
+
+			// Setup DNAT mapping if needed
+			originalIP := netip.MustParseAddr("192.168.1.100")
+			translatedIP := netip.MustParseAddr("10.0.0.100")
+
+			if sc.setupDNAT {
+				err := manager.AddInternalDNATMapping(originalIP, translatedIP)
+				require.NoError(b, err)
+			}
+
+			// Create test packets
+			srcIP := netip.MustParseAddr("172.16.0.1")
+			outboundPacket := generateDNATTestPacket(b, srcIP, originalIP, sc.proto, 12345, 80)
+
+			// Pre-establish connection for reverse DNAT test
+			if sc.setupDNAT {
+				manager.filterOutbound(outboundPacket, 0)
+			}
+
+			b.ResetTimer()
+
+			// Benchmark outbound DNAT translation
+			b.Run("outbound", func(b *testing.B) {
+				for i := 0; i < b.N; i++ {
+					// Create fresh packet each time since translation modifies it
+					packet := generateDNATTestPacket(b, srcIP, originalIP, sc.proto, 12345, 80)
+					manager.filterOutbound(packet, 0)
+				}
+			})
+
+			// Benchmark inbound reverse DNAT translation
+			if sc.setupDNAT {
+				b.Run("inbound_reverse", func(b *testing.B) {
+					for i := 0; i < b.N; i++ {
+						// Create fresh packet each time since translation modifies it
+						packet := generateDNATTestPacket(b, translatedIP, srcIP, sc.proto, 80, 12345)
+						manager.filterInbound(packet, 0)
+					}
+				})
+			}
+		})
+	}
+}
+
+// BenchmarkDNATConcurrency tests DNAT performance under concurrent load
+func BenchmarkDNATConcurrency(b *testing.B) {
+	manager, err := Create(&IFaceMock{
+		SetFilterFunc: func(device.PacketFilter) error { return nil },
+	}, false, flowLogger)
+	require.NoError(b, err)
+	defer func() {
+		require.NoError(b, manager.Close(nil))
+	}()
+
+	// Set logger to error level to reduce noise during benchmarking
+	manager.SetLogLevel(log.ErrorLevel)
+	defer func() {
+		// Restore to info level after benchmark
+		manager.SetLogLevel(log.InfoLevel)
+	}()
+
+	// Setup multiple DNAT mappings
+	numMappings := 100
+	originalIPs := make([]netip.Addr, numMappings)
+	translatedIPs := make([]netip.Addr, numMappings)
+
+	for i := 0; i < numMappings; i++ {
+		originalIPs[i] = netip.MustParseAddr(fmt.Sprintf("192.168.%d.%d", (i/254)+1, (i%254)+1))
+		translatedIPs[i] = netip.MustParseAddr(fmt.Sprintf("10.0.%d.%d", (i/254)+1, (i%254)+1))
+		err := manager.AddInternalDNATMapping(originalIPs[i], translatedIPs[i])
+		require.NoError(b, err)
+	}
+
+	srcIP := netip.MustParseAddr("172.16.0.1")
+
+	// Pre-generate packets
+	outboundPackets := make([][]byte, numMappings)
+	inboundPackets := make([][]byte, numMappings)
+	for i := 0; i < numMappings; i++ {
+		outboundPackets[i] = generateDNATTestPacket(b, srcIP, originalIPs[i], layers.IPProtocolTCP, 12345, 80)
+		inboundPackets[i] = generateDNATTestPacket(b, translatedIPs[i], srcIP, layers.IPProtocolTCP, 80, 12345)
+		// Establish connections
+		manager.filterOutbound(outboundPackets[i], 0)
+	}
+
+	b.ResetTimer()
+
+	b.Run("concurrent_outbound", func(b *testing.B) {
+		b.RunParallel(func(pb *testing.PB) {
+			i := 0
+			for pb.Next() {
+				idx := i % numMappings
+				packet := generateDNATTestPacket(b, srcIP, originalIPs[idx], layers.IPProtocolTCP, 12345, 80)
+				manager.filterOutbound(packet, 0)
+				i++
+			}
+		})
+	})
+
+	b.Run("concurrent_inbound", func(b *testing.B) {
+		b.RunParallel(func(pb *testing.PB) {
+			i := 0
+			for pb.Next() {
+				idx := i % numMappings
+				packet := generateDNATTestPacket(b, translatedIPs[idx], srcIP, layers.IPProtocolTCP, 80, 12345)
+				manager.filterInbound(packet, 0)
+				i++
+			}
+		})
+	})
+}
+
+// BenchmarkDNATScaling tests how DNAT performance scales with number of mappings
+func BenchmarkDNATScaling(b *testing.B) {
+	mappingCounts := []int{1, 10, 100, 1000}
+
+	for _, count := range mappingCounts {
+		b.Run(fmt.Sprintf("mappings_%d", count), func(b *testing.B) {
+			manager, err := Create(&IFaceMock{
+				SetFilterFunc: func(device.PacketFilter) error { return nil },
+			}, false, flowLogger)
+			require.NoError(b, err)
+			defer func() {
+				require.NoError(b, manager.Close(nil))
+			}()
+
+			// Set logger to error level to reduce noise during benchmarking
+			manager.SetLogLevel(log.ErrorLevel)
+			defer func() {
+				// Restore to info level after benchmark
+				manager.SetLogLevel(log.InfoLevel)
+			}()
+
+			// Setup DNAT mappings
+			for i := 0; i < count; i++ {
+				originalIP := netip.MustParseAddr(fmt.Sprintf("192.168.%d.%d", (i/254)+1, (i%254)+1))
+				translatedIP := netip.MustParseAddr(fmt.Sprintf("10.0.%d.%d", (i/254)+1, (i%254)+1))
+				err := manager.AddInternalDNATMapping(originalIP, translatedIP)
+				require.NoError(b, err)
+			}
+
+			// Test with the last mapping added (worst case for lookup)
+			srcIP := netip.MustParseAddr("172.16.0.1")
+			lastOriginal := netip.MustParseAddr(fmt.Sprintf("192.168.%d.%d", ((count-1)/254)+1, ((count-1)%254)+1))
+
+			b.ResetTimer()
+			for i := 0; i < b.N; i++ {
+				packet := generateDNATTestPacket(b, srcIP, lastOriginal, layers.IPProtocolTCP, 12345, 80)
+				manager.filterOutbound(packet, 0)
+			}
+		})
+	}
+}
+
+// generateDNATTestPacket creates a test packet for DNAT benchmarking
+func generateDNATTestPacket(tb testing.TB, srcIP, dstIP netip.Addr, proto layers.IPProtocol, srcPort, dstPort uint16) []byte {
+	tb.Helper()
+
+	ipv4 := &layers.IPv4{
+		TTL:      64,
+		Version:  4,
+		SrcIP:    srcIP.AsSlice(),
+		DstIP:    dstIP.AsSlice(),
+		Protocol: proto,
+	}
+
+	var transportLayer gopacket.SerializableLayer
+	switch proto {
+	case layers.IPProtocolTCP:
+		tcp := &layers.TCP{
+			SrcPort: layers.TCPPort(srcPort),
+			DstPort: layers.TCPPort(dstPort),
+			SYN:     true,
+		}
+		require.NoError(tb, tcp.SetNetworkLayerForChecksum(ipv4))
+		transportLayer = tcp
+	case layers.IPProtocolUDP:
+		udp := &layers.UDP{
+			SrcPort: layers.UDPPort(srcPort),
+			DstPort: layers.UDPPort(dstPort),
+		}
+		require.NoError(tb, udp.SetNetworkLayerForChecksum(ipv4))
+		transportLayer = udp
+	case layers.IPProtocolICMPv4:
+		icmp := &layers.ICMPv4{
+			TypeCode: layers.CreateICMPv4TypeCode(layers.ICMPv4TypeEchoRequest, 0),
+		}
+		transportLayer = icmp
+	}
+
+	buf := gopacket.NewSerializeBuffer()
+	opts := gopacket.SerializeOptions{ComputeChecksums: true, FixLengths: true}
+	err := gopacket.SerializeLayers(buf, opts, ipv4, transportLayer, gopacket.Payload("test"))
+	require.NoError(tb, err)
+	return buf.Bytes()
+}
+
+// BenchmarkChecksumUpdate specifically benchmarks checksum calculation performance
+func BenchmarkChecksumUpdate(b *testing.B) {
+	// Create test data for checksum calculations
+	testData := make([]byte, 64) // Typical packet size for checksum testing
+	for i := range testData {
+		testData[i] = byte(i)
+	}
+
+	b.Run("ipv4_checksum", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			_ = ipv4Checksum(testData[:20]) // IPv4 header is typically 20 bytes
+		}
+	})
+
+	b.Run("icmp_checksum", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			_ = icmpChecksum(testData)
+		}
+	})
+
+	b.Run("incremental_update", func(b *testing.B) {
+		oldBytes := []byte{192, 168, 1, 100}
+		newBytes := []byte{10, 0, 0, 100}
+		oldChecksum := uint16(0x1234)
+
+		for i := 0; i < b.N; i++ {
+			_ = incrementalUpdate(oldChecksum, oldBytes, newBytes)
+		}
+	})
+}
+
+// BenchmarkDNATMemoryAllocations checks for memory allocations in DNAT operations
+func BenchmarkDNATMemoryAllocations(b *testing.B) {
+	manager, err := Create(&IFaceMock{
+		SetFilterFunc: func(device.PacketFilter) error { return nil },
+	}, false, flowLogger)
+	require.NoError(b, err)
+	defer func() {
+		require.NoError(b, manager.Close(nil))
+	}()
+
+	// Set logger to error level to reduce noise during benchmarking
+	manager.SetLogLevel(log.ErrorLevel)
+	defer func() {
+		// Restore to info level after benchmark
+		manager.SetLogLevel(log.InfoLevel)
+	}()
+
+	originalIP := netip.MustParseAddr("192.168.1.100")
+	translatedIP := netip.MustParseAddr("10.0.0.100")
+	srcIP := netip.MustParseAddr("172.16.0.1")
+
+	err = manager.AddInternalDNATMapping(originalIP, translatedIP)
+	require.NoError(b, err)
+
+	packet := generateDNATTestPacket(b, srcIP, originalIP, layers.IPProtocolTCP, 12345, 80)
+
+	b.ResetTimer()
+	b.ReportAllocs()
+
+	for i := 0; i < b.N; i++ {
+		// Create fresh packet each time to isolate allocation testing
+		testPacket := make([]byte, len(packet))
+		copy(testPacket, packet)
+
+		// Parse the packet fresh each time to get a clean decoder
+		d := &decoder{decoded: []gopacket.LayerType{}}
+		d.parser = gopacket.NewDecodingLayerParser(
+			layers.LayerTypeIPv4,
+			&d.eth, &d.ip4, &d.ip6, &d.icmp4, &d.icmp6, &d.tcp, &d.udp,
+		)
+		d.parser.IgnoreUnsupported = true
+		err = d.parser.DecodeLayers(testPacket, &d.decoded)
+		assert.NoError(b, err)
+
+		manager.translateOutboundDNAT(testPacket, d)
+	}
+}
+
+// BenchmarkDirectIPExtraction tests the performance improvement of direct IP extraction
+func BenchmarkDirectIPExtraction(b *testing.B) {
+	// Create a test packet
+	srcIP := netip.MustParseAddr("172.16.0.1")
+	dstIP := netip.MustParseAddr("192.168.1.100")
+	packet := generateDNATTestPacket(b, srcIP, dstIP, layers.IPProtocolTCP, 12345, 80)
+
+	b.Run("direct_byte_access", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			// Direct extraction from packet bytes
+			_ = netip.AddrFrom4([4]byte{packet[16], packet[17], packet[18], packet[19]})
+		}
+	})
+
+	b.Run("decoder_extraction", func(b *testing.B) {
+		// Create decoder once for comparison
+		d := &decoder{decoded: []gopacket.LayerType{}}
+		d.parser = gopacket.NewDecodingLayerParser(
+			layers.LayerTypeIPv4,
+			&d.eth, &d.ip4, &d.ip6, &d.icmp4, &d.icmp6, &d.tcp, &d.udp,
+		)
+		d.parser.IgnoreUnsupported = true
+		err := d.parser.DecodeLayers(packet, &d.decoded)
+		assert.NoError(b, err)
+
+		for i := 0; i < b.N; i++ {
+			// Extract using decoder (traditional method)
+			dst, _ := netip.AddrFromSlice(d.ip4.DstIP)
+			_ = dst
+		}
+	})
+}
+
+// BenchmarkChecksumOptimizations compares optimized vs standard checksum implementations
+func BenchmarkChecksumOptimizations(b *testing.B) {
+	// Create test IPv4 header (20 bytes)
+	header := make([]byte, 20)
+	for i := range header {
+		header[i] = byte(i)
+	}
+	// Clear checksum field
+	header[10] = 0
+	header[11] = 0
+
+	b.Run("optimized_ipv4_checksum", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			_ = ipv4Checksum(header)
+		}
+	})
+
+	// Test incremental checksum updates
+	oldIP := []byte{192, 168, 1, 100}
+	newIP := []byte{10, 0, 0, 100}
+	oldChecksum := uint16(0x1234)
+
+	b.Run("optimized_incremental_update", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			_ = incrementalUpdate(oldChecksum, oldIP, newIP)
+		}
+	})
+}

client/firewall/uspfilter/nat_test.go

@@ -0,0 +1,145 @@
+package uspfilter
+
+import (
+	"net/netip"
+	"testing"
+
+	"github.com/google/gopacket"
+	"github.com/google/gopacket/layers"
+	"github.com/stretchr/testify/require"
+
+	"github.com/netbirdio/netbird/client/iface/device"
+)
+
+// TestDNATTranslationCorrectness verifies DNAT translation works correctly
+func TestDNATTranslationCorrectness(t *testing.T) {
+	manager, err := Create(&IFaceMock{
+		SetFilterFunc: func(device.PacketFilter) error { return nil },
+	}, false, flowLogger)
+	require.NoError(t, err)
+	defer func() {
+		require.NoError(t, manager.Close(nil))
+	}()
+
+	originalIP := netip.MustParseAddr("192.168.1.100")
+	translatedIP := netip.MustParseAddr("10.0.0.100")
+	srcIP := netip.MustParseAddr("172.16.0.1")
+
+	// Add DNAT mapping
+	err = manager.AddInternalDNATMapping(originalIP, translatedIP)
+	require.NoError(t, err)
+
+	testCases := []struct {
+		name     string
+		protocol layers.IPProtocol
+		srcPort  uint16
+		dstPort  uint16
+	}{
+		{"TCP", layers.IPProtocolTCP, 12345, 80},
+		{"UDP", layers.IPProtocolUDP, 12345, 53},
+		{"ICMP", layers.IPProtocolICMPv4, 0, 0},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			// Test outbound DNAT translation
+			outboundPacket := generateDNATTestPacket(t, srcIP, originalIP, tc.protocol, tc.srcPort, tc.dstPort)
+			originalOutbound := make([]byte, len(outboundPacket))
+			copy(originalOutbound, outboundPacket)
+
+			// Process outbound packet (should translate destination)
+			translated := manager.translateOutboundDNAT(outboundPacket, parsePacket(t, outboundPacket))
+			require.True(t, translated, "Outbound packet should be translated")
+
+			// Verify destination IP was changed
+			dstIPAfter := netip.AddrFrom4([4]byte{outboundPacket[16], outboundPacket[17], outboundPacket[18], outboundPacket[19]})
+			require.Equal(t, translatedIP, dstIPAfter, "Destination IP should be translated")
+
+			// Test inbound reverse DNAT translation
+			inboundPacket := generateDNATTestPacket(t, translatedIP, srcIP, tc.protocol, tc.dstPort, tc.srcPort)
+			originalInbound := make([]byte, len(inboundPacket))
+			copy(originalInbound, inboundPacket)
+
+			// Process inbound packet (should reverse translate source)
+			reversed := manager.translateInboundReverse(inboundPacket, parsePacket(t, inboundPacket))
+			require.True(t, reversed, "Inbound packet should be reverse translated")
+
+			// Verify source IP was changed back to original
+			srcIPAfter := netip.AddrFrom4([4]byte{inboundPacket[12], inboundPacket[13], inboundPacket[14], inboundPacket[15]})
+			require.Equal(t, originalIP, srcIPAfter, "Source IP should be reverse translated")
+
+			// Test that checksums are recalculated correctly
+			if tc.protocol != layers.IPProtocolICMPv4 {
+				// For TCP/UDP, verify the transport checksum was updated
+				require.NotEqual(t, originalOutbound, outboundPacket, "Outbound packet should be modified")
+				require.NotEqual(t, originalInbound, inboundPacket, "Inbound packet should be modified")
+			}
+		})
+	}
+}
+
+// parsePacket helper to create a decoder for testing
+func parsePacket(t testing.TB, packetData []byte) *decoder {
+	t.Helper()
+	d := &decoder{
+		decoded: []gopacket.LayerType{},
+	}
+	d.parser = gopacket.NewDecodingLayerParser(
+		layers.LayerTypeIPv4,
+		&d.eth, &d.ip4, &d.ip6, &d.icmp4, &d.icmp6, &d.tcp, &d.udp,
+	)
+	d.parser.IgnoreUnsupported = true
+
+	err := d.parser.DecodeLayers(packetData, &d.decoded)
+	require.NoError(t, err)
+	return d
+}
+
+// TestDNATMappingManagement tests adding/removing DNAT mappings
+func TestDNATMappingManagement(t *testing.T) {
+	manager, err := Create(&IFaceMock{
+		SetFilterFunc: func(device.PacketFilter) error { return nil },
+	}, false, flowLogger)
+	require.NoError(t, err)
+	defer func() {
+		require.NoError(t, manager.Close(nil))
+	}()
+
+	originalIP := netip.MustParseAddr("192.168.1.100")
+	translatedIP := netip.MustParseAddr("10.0.0.100")
+
+	// Test adding mapping
+	err = manager.AddInternalDNATMapping(originalIP, translatedIP)
+	require.NoError(t, err)
+
+	// Verify mapping exists
+	result, exists := manager.getDNATTranslation(originalIP)
+	require.True(t, exists)
+	require.Equal(t, translatedIP, result)
+
+	// Test reverse lookup
+	reverseResult, exists := manager.findReverseDNATMapping(translatedIP)
+	require.True(t, exists)
+	require.Equal(t, originalIP, reverseResult)
+
+	// Test removing mapping
+	err = manager.RemoveInternalDNATMapping(originalIP)
+	require.NoError(t, err)
+
+	// Verify mapping no longer exists
+	_, exists = manager.getDNATTranslation(originalIP)
+	require.False(t, exists)
+
+	_, exists = manager.findReverseDNATMapping(translatedIP)
+	require.False(t, exists)
+
+	// Test error cases
+	err = manager.AddInternalDNATMapping(netip.Addr{}, translatedIP)
+	require.Error(t, err, "Should reject invalid original IP")
+
+	err = manager.AddInternalDNATMapping(originalIP, netip.Addr{})
+	require.Error(t, err, "Should reject invalid translated IP")
+
+	err = manager.RemoveInternalDNATMapping(originalIP)
+	require.Error(t, err, "Should error when removing non-existent mapping")
+}

client/firewall/uspfilter/tracer.go

@@ -401,7 +401,7 @@ func (m *Manager) addForwardingResult(trace *PacketTrace, action, remoteAddr str
 
 func (m *Manager) traceOutbound(packetData []byte, trace *PacketTrace) *PacketTrace {
 	// will create or update the connection state
-	dropped := m.processOutgoingHooks(packetData, 0)
+	dropped := m.filterOutbound(packetData, 0)
 	if dropped {
 		trace.AddResult(StageCompleted, "Packet dropped by outgoing hook", false)
 	} else {

client/iface/bind/activity.go

@@ -0,0 +1,96 @@
+package bind
+
+import (
+	"net/netip"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/monotime"
+)
+
+const (
+	saveFrequency = int64(5 * time.Second)
+)
+
+type PeerRecord struct {
+	Address      netip.AddrPort
+	LastActivity atomic.Int64 // UnixNano timestamp
+}
+
+type ActivityRecorder struct {
+	mu         sync.RWMutex
+	peers      map[string]*PeerRecord         // publicKey to PeerRecord map
+	addrToPeer map[netip.AddrPort]*PeerRecord // address to PeerRecord map
+}
+
+func NewActivityRecorder() *ActivityRecorder {
+	return &ActivityRecorder{
+		peers:      make(map[string]*PeerRecord),
+		addrToPeer: make(map[netip.AddrPort]*PeerRecord),
+	}
+}
+
+// GetLastActivities returns a snapshot of peer last activity
+func (r *ActivityRecorder) GetLastActivities() map[string]monotime.Time {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
+	activities := make(map[string]monotime.Time, len(r.peers))
+	for key, record := range r.peers {
+		monoTime := record.LastActivity.Load()
+		activities[key] = monotime.Time(monoTime)
+	}
+	return activities
+}
+
+// UpsertAddress adds or updates the address for a publicKey
+func (r *ActivityRecorder) UpsertAddress(publicKey string, address netip.AddrPort) {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
+	var record *PeerRecord
+	record, exists := r.peers[publicKey]
+	if exists {
+		delete(r.addrToPeer, record.Address)
+		record.Address = address
+	} else {
+		record = &PeerRecord{
+			Address: address,
+		}
+		record.LastActivity.Store(int64(monotime.Now()))
+		r.peers[publicKey] = record
+	}
+
+	r.addrToPeer[address] = record
+}
+
+func (r *ActivityRecorder) Remove(publicKey string) {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	if record, exists := r.peers[publicKey]; exists {
+		delete(r.addrToPeer, record.Address)
+		delete(r.peers, publicKey)
+	}
+}
+
+// record updates LastActivity for the given address using atomic store
+func (r *ActivityRecorder) record(address netip.AddrPort) {
+	r.mu.RLock()
+	record, ok := r.addrToPeer[address]
+	r.mu.RUnlock()
+	if !ok {
+		log.Warnf("could not find record for address %s", address)
+		return
+	}
+
+	now := int64(monotime.Now())
+	last := record.LastActivity.Load()
+	if now-last < saveFrequency {
+		return
+	}
+
+	_ = record.LastActivity.CompareAndSwap(last, now)
+}

client/iface/bind/activity_test.go

@@ -0,0 +1,25 @@
+package bind
+
+import (
+	"net/netip"
+	"testing"
+	"time"
+
+	"github.com/netbirdio/netbird/monotime"
+)
+
+func TestActivityRecorder_GetLastActivities(t *testing.T) {
+	peer := "peer1"
+	ar := NewActivityRecorder()
+	ar.UpsertAddress("peer1", netip.MustParseAddrPort("192.168.0.5:51820"))
+	activities := ar.GetLastActivities()
+
+	p, ok := activities[peer]
+	if !ok {
+		t.Fatalf("Expected activity for peer %s, but got none", peer)
+	}
+
+	if monotime.Since(p) > 5*time.Second {
+		t.Fatalf("Expected activity for peer %s to be recent, but got %v", peer, p)
+	}
+}

client/iface/bind/control.go

@@ -0,0 +1,15 @@
+package bind
+
+import (
+	wireguard "golang.zx2c4.com/wireguard/conn"
+
+	nbnet "github.com/netbirdio/netbird/util/net"
+)
+
+// TODO: This is most likely obsolete since the control fns should be called by the wrapped udpconn (ice_bind.go)
+func init() {
+	listener := nbnet.NewListener()
+	if listener.ListenConfig.Control != nil {
+		*wireguard.ControlFns = append(*wireguard.ControlFns, listener.ListenConfig.Control)
+	}
+}

client/iface/bind/control_android.go

@@ -1,12 +0,0 @@
-package bind
-
-import (
-	wireguard "golang.zx2c4.com/wireguard/conn"
-
-	nbnet "github.com/netbirdio/netbird/util/net"
-)
-
-func init() {
-	// ControlFns is not thread safe and should only be modified during init.
-	*wireguard.ControlFns = append(*wireguard.ControlFns, nbnet.ControlProtectSocket)
-}

client/iface/bind/ice_bind.go

@@ -1,6 +1,7 @@
 package bind
 
 import (
+	"encoding/binary"
 	"fmt"
 	"net"
 	"net/netip"
@@ -15,6 +16,7 @@ import (
 	wgConn "golang.zx2c4.com/wireguard/conn"
 
 	"github.com/netbirdio/netbird/client/iface/wgaddr"
+	nbnet "github.com/netbirdio/netbird/util/net"
 )
 
 type RecvMessage struct {
@@ -51,22 +53,24 @@ type ICEBind struct {
 	closedChanMu sync.RWMutex // protect the closeChan recreation from reading from it.
 	closed       bool
 
-	muUDPMux sync.Mutex
-	udpMux   *UniversalUDPMuxDefault
-	address  wgaddr.Address
+	muUDPMux         sync.Mutex
+	udpMux           *UniversalUDPMuxDefault
+	address          wgaddr.Address
+	activityRecorder *ActivityRecorder
 }
 
 func NewICEBind(transportNet transport.Net, filterFn FilterFn, address wgaddr.Address) *ICEBind {
 	b, _ := wgConn.NewStdNetBind().(*wgConn.StdNetBind)
 	ib := &ICEBind{
-		StdNetBind:   b,
-		RecvChan:     make(chan RecvMessage, 1),
-		transportNet: transportNet,
-		filterFn:     filterFn,
-		endpoints:    make(map[netip.Addr]net.Conn),
-		closedChan:   make(chan struct{}),
-		closed:       true,
-		address:      address,
+		StdNetBind:       b,
+		RecvChan:         make(chan RecvMessage, 1),
+		transportNet:     transportNet,
+		filterFn:         filterFn,
+		endpoints:        make(map[netip.Addr]net.Conn),
+		closedChan:       make(chan struct{}),
+		closed:           true,
+		address:          address,
+		activityRecorder: NewActivityRecorder(),
 	}
 
 	rc := receiverCreator{
@@ -100,6 +104,10 @@ func (s *ICEBind) Close() error {
 	return s.StdNetBind.Close()
 }
 
+func (s *ICEBind) ActivityRecorder() *ActivityRecorder {
+	return s.activityRecorder
+}
+
 // GetICEMux returns the ICE UDPMux that was created and used by ICEBind
 func (s *ICEBind) GetICEMux() (*UniversalUDPMuxDefault, error) {
 	s.muUDPMux.Lock()
@@ -146,7 +154,7 @@ func (s *ICEBind) createIPv4ReceiverFn(pc *ipv4.PacketConn, conn *net.UDPConn, r
 
 	s.udpMux = NewUniversalUDPMuxDefault(
 		UniversalUDPMuxParams{
-			UDPConn:   conn,
+			UDPConn:   nbnet.WrapPacketConn(conn),
 			Net:       s.transportNet,
 			FilterFn:  s.filterFn,
 			WGAddress: s.address,
@@ -199,6 +207,11 @@ func (s *ICEBind) createIPv4ReceiverFn(pc *ipv4.PacketConn, conn *net.UDPConn, r
 				continue
 			}
 			addrPort := msg.Addr.(*net.UDPAddr).AddrPort()
+
+			if isTransportPkg(msg.Buffers, msg.N) {
+				s.activityRecorder.record(addrPort)
+			}
+
 			ep := &wgConn.StdNetEndpoint{AddrPort: addrPort} // TODO: remove allocation
 			wgConn.GetSrcFromControl(msg.OOB[:msg.NN], ep)
 			eps[i] = ep
@@ -257,6 +270,13 @@ func (c *ICEBind) receiveRelayed(buffs [][]byte, sizes []int, eps []wgConn.Endpo
 		copy(buffs[0], msg.Buffer)
 		sizes[0] = len(msg.Buffer)
 		eps[0] = wgConn.Endpoint(msg.Endpoint)
+
+		if isTransportPkg(buffs, sizes[0]) {
+			if ep, ok := eps[0].(*Endpoint); ok {
+				c.activityRecorder.record(ep.AddrPort)
+			}
+		}
+
 		return 1, nil
 	}
 }
@@ -272,3 +292,19 @@ func putMessages(msgs *[]ipv6.Message, msgsPool *sync.Pool) {
 	}
 	msgsPool.Put(msgs)
 }
+
+func isTransportPkg(buffers [][]byte, n int) bool {
+	// The first buffer should contain at least 4 bytes for type
+	if len(buffers[0]) < 4 {
+		return true
+	}
+
+	// WireGuard packet type is a little-endian uint32 at start
+	packetType := binary.LittleEndian.Uint32(buffers[0][:4])
+
+	// Check if packetType matches known WireGuard message types
+	if packetType == 4 && n > 32 {
+		return true
+	}
+	return false
+}

client/iface/bind/udp_mux.go

@@ -296,14 +296,20 @@ func (m *UDPMuxDefault) RemoveConnByUfrag(ufrag string) {
 		return
 	}
 
-	m.addressMapMu.Lock()
-	defer m.addressMapMu.Unlock()
-
+	var allAddresses []string
 	for _, c := range removedConns {
 		addresses := c.getAddresses()
-		for _, addr := range addresses {
-			delete(m.addressMap, addr)
-		}
+		allAddresses = append(allAddresses, addresses...)
+	}
+
+	m.addressMapMu.Lock()
+	for _, addr := range allAddresses {
+		delete(m.addressMap, addr)
+	}
+	m.addressMapMu.Unlock()
+
+	for _, addr := range allAddresses {
+		m.notifyAddressRemoval(addr)
 	}
 }
 
@@ -351,14 +357,13 @@ func (m *UDPMuxDefault) registerConnForAddress(conn *udpMuxedConn, addr string)
 	}
 
 	m.addressMapMu.Lock()
-	defer m.addressMapMu.Unlock()
-
 	existing, ok := m.addressMap[addr]
 	if !ok {
 		existing = []*udpMuxedConn{}
 	}
 	existing = append(existing, conn)
 	m.addressMap[addr] = existing
+	m.addressMapMu.Unlock()
 
 	log.Debugf("ICE: registered %s for %s", addr, conn.params.Key)
 }
@@ -386,12 +391,12 @@ func (m *UDPMuxDefault) HandleSTUNMessage(msg *stun.Message, addr net.Addr) erro
 	// If you are using the same socket for the Host and SRFLX candidates, it might be that there are more than one
 	// muxed connection - one for the SRFLX candidate and the other one for the HOST one.
 	// We will then forward STUN packets to each of these connections.
-	m.addressMapMu.Lock()
+	m.addressMapMu.RLock()
 	var destinationConnList []*udpMuxedConn
 	if storedConns, ok := m.addressMap[addr.String()]; ok {
 		destinationConnList = append(destinationConnList, storedConns...)
 	}
-	m.addressMapMu.Unlock()
+	m.addressMapMu.RUnlock()
 
 	var isIPv6 bool
 	if udpAddr, _ := addr.(*net.UDPAddr); udpAddr != nil && udpAddr.IP.To4() == nil {

client/iface/bind/udp_mux_generic.go

@@ -0,0 +1,22 @@
+//go:build !ios
+
+package bind
+
+import (
+	nbnet "github.com/netbirdio/netbird/util/net"
+)
+
+func (m *UDPMuxDefault) notifyAddressRemoval(addr string) {
+	// Kernel mode: direct nbnet.PacketConn (SharedSocket wrapped with nbnet)
+	if conn, ok := m.params.UDPConn.(*nbnet.PacketConn); ok {
+		conn.RemoveAddress(addr)
+		return
+	}
+
+	// Userspace mode: UDPConn wrapper around nbnet.PacketConn
+	if wrapped, ok := m.params.UDPConn.(*UDPConn); ok {
+		if conn, ok := wrapped.GetPacketConn().(*nbnet.PacketConn); ok {
+			conn.RemoveAddress(addr)
+		}
+	}
+}

client/iface/bind/udp_mux_ios.go

@@ -0,0 +1,7 @@
+//go:build ios
+
+package bind
+
+func (m *UDPMuxDefault) notifyAddressRemoval(addr string) {
+	// iOS doesn't support nbnet hooks, so this is a no-op
+}

client/iface/bind/udp_mux_universal.go

@@ -62,7 +62,7 @@ func NewUniversalUDPMuxDefault(params UniversalUDPMuxParams) *UniversalUDPMuxDef
 
 	// wrap UDP connection, process server reflexive messages
 	// before they are passed to the UDPMux connection handler (connWorker)
-	m.params.UDPConn = &udpConn{
+	m.params.UDPConn = &UDPConn{
 		PacketConn: params.UDPConn,
 		mux:        m,
 		logger:     params.Logger,
@@ -70,7 +70,6 @@ func NewUniversalUDPMuxDefault(params UniversalUDPMuxParams) *UniversalUDPMuxDef
 		address:    params.WGAddress,
 	}
 
-	// embed UDPMux
 	udpMuxParams := UDPMuxParams{
 		Logger:  params.Logger,
 		UDPConn: m.params.UDPConn,
@@ -114,8 +113,8 @@ func (m *UniversalUDPMuxDefault) ReadFromConn(ctx context.Context) {
 	}
 }
 
-// udpConn is a wrapper around UDPMux conn that overrides ReadFrom and handles STUN/TURN packets
-type udpConn struct {
+// UDPConn is a wrapper around UDPMux conn that overrides ReadFrom and handles STUN/TURN packets
+type UDPConn struct {
 	net.PacketConn
 	mux      *UniversalUDPMuxDefault
 	logger   logging.LeveledLogger
@@ -125,7 +124,12 @@ type udpConn struct {
 	address   wgaddr.Address
 }
 
-func (u *udpConn) WriteTo(b []byte, addr net.Addr) (int, error) {
+// GetPacketConn returns the underlying PacketConn
+func (u *UDPConn) GetPacketConn() net.PacketConn {
+	return u.PacketConn
+}
+
+func (u *UDPConn) WriteTo(b []byte, addr net.Addr) (int, error) {
 	if u.filterFn == nil {
 		return u.PacketConn.WriteTo(b, addr)
 	}
@@ -137,21 +141,21 @@ func (u *udpConn) WriteTo(b []byte, addr net.Addr) (int, error) {
 	return u.handleUncachedAddress(b, addr)
 }
 
-func (u *udpConn) handleCachedAddress(isRouted bool, b []byte, addr net.Addr) (int, error) {
+func (u *UDPConn) handleCachedAddress(isRouted bool, b []byte, addr net.Addr) (int, error) {
 	if isRouted {
 		return 0, fmt.Errorf("address %s is part of a routed network, refusing to write", addr)
 	}
 	return u.PacketConn.WriteTo(b, addr)
 }
 
-func (u *udpConn) handleUncachedAddress(b []byte, addr net.Addr) (int, error) {
+func (u *UDPConn) handleUncachedAddress(b []byte, addr net.Addr) (int, error) {
 	if err := u.performFilterCheck(addr); err != nil {
 		return 0, err
 	}
 	return u.PacketConn.WriteTo(b, addr)
 }
 
-func (u *udpConn) performFilterCheck(addr net.Addr) error {
+func (u *UDPConn) performFilterCheck(addr net.Addr) error {
 	host, err := getHostFromAddr(addr)
 	if err != nil {
 		log.Errorf("Failed to get host from address %s: %v", addr, err)

client/iface/configurer/kernel_unix.go

@@ -11,6 +11,8 @@ import (
 	log "github.com/sirupsen/logrus"
 	"golang.zx2c4.com/wireguard/wgctrl"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+
+	"github.com/netbirdio/netbird/monotime"
 )
 
 var zeroKey wgtypes.Key
@@ -276,3 +278,7 @@ func (c *KernelConfigurer) GetStats() (map[string]WGStats, error) {
 	}
 	return stats, nil
 }
+
+func (c *KernelConfigurer) LastActivities() map[string]monotime.Time {
+	return nil
+}

client/iface/configurer/usp.go

@@ -16,6 +16,8 @@ import (
 	"golang.zx2c4.com/wireguard/device"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 
+	"github.com/netbirdio/netbird/client/iface/bind"
+	"github.com/netbirdio/netbird/monotime"
 	nbnet "github.com/netbirdio/netbird/util/net"
 )
 
@@ -36,16 +38,18 @@ const (
 var ErrAllowedIPNotFound = fmt.Errorf("allowed IP not found")
 
 type WGUSPConfigurer struct {
-	device     *device.Device
-	deviceName string
+	device           *device.Device
+	deviceName       string
+	activityRecorder *bind.ActivityRecorder
 
 	uapiListener net.Listener
 }
 
-func NewUSPConfigurer(device *device.Device, deviceName string) *WGUSPConfigurer {
+func NewUSPConfigurer(device *device.Device, deviceName string, activityRecorder *bind.ActivityRecorder) *WGUSPConfigurer {
 	wgCfg := &WGUSPConfigurer{
-		device:     device,
-		deviceName: deviceName,
+		device:           device,
+		deviceName:       deviceName,
+		activityRecorder: activityRecorder,
 	}
 	wgCfg.startUAPI()
 	return wgCfg
@@ -87,7 +91,19 @@ func (c *WGUSPConfigurer) UpdatePeer(peerKey string, allowedIps []netip.Prefix,
 		Peers: []wgtypes.PeerConfig{peer},
 	}
 
-	return c.device.IpcSet(toWgUserspaceString(config))
+	if ipcErr := c.device.IpcSet(toWgUserspaceString(config)); ipcErr != nil {
+		return ipcErr
+	}
+
+	if endpoint != nil {
+		addr, err := netip.ParseAddr(endpoint.IP.String())
+		if err != nil {
+			return fmt.Errorf("failed to parse endpoint address: %w", err)
+		}
+		addrPort := netip.AddrPortFrom(addr, uint16(endpoint.Port))
+		c.activityRecorder.UpsertAddress(peerKey, addrPort)
+	}
+	return nil
 }
 
 func (c *WGUSPConfigurer) RemovePeer(peerKey string) error {
@@ -104,7 +120,10 @@ func (c *WGUSPConfigurer) RemovePeer(peerKey string) error {
 	config := wgtypes.Config{
 		Peers: []wgtypes.PeerConfig{peer},
 	}
-	return c.device.IpcSet(toWgUserspaceString(config))
+	ipcErr := c.device.IpcSet(toWgUserspaceString(config))
+
+	c.activityRecorder.Remove(peerKey)
+	return ipcErr
 }
 
 func (c *WGUSPConfigurer) AddAllowedIP(peerKey string, allowedIP netip.Prefix) error {
@@ -205,6 +224,10 @@ func (c *WGUSPConfigurer) FullStats() (*Stats, error) {
 	return parseStatus(c.deviceName, ipcStr)
 }
 
+func (c *WGUSPConfigurer) LastActivities() map[string]monotime.Time {
+	return c.activityRecorder.GetLastActivities()
+}
+
 // startUAPI starts the UAPI listener for managing the WireGuard interface via external tool
 func (t *WGUSPConfigurer) startUAPI() {
 	var err error

client/iface/device/device_android.go

@@ -24,6 +24,7 @@ type WGTunDevice struct {
 	mtu        int
 	iceBind    *bind.ICEBind
 	tunAdapter TunAdapter
+	disableDNS bool
 
 	name           string
 	device         *device.Device
@@ -32,7 +33,7 @@ type WGTunDevice struct {
 	configurer     WGConfigurer
 }
 
-func NewTunDevice(address wgaddr.Address, port int, key string, mtu int, iceBind *bind.ICEBind, tunAdapter TunAdapter) *WGTunDevice {
+func NewTunDevice(address wgaddr.Address, port int, key string, mtu int, iceBind *bind.ICEBind, tunAdapter TunAdapter, disableDNS bool) *WGTunDevice {
 	return &WGTunDevice{
 		address:    address,
 		port:       port,
@@ -40,6 +41,7 @@ func NewTunDevice(address wgaddr.Address, port int, key string, mtu int, iceBind
 		mtu:        mtu,
 		iceBind:    iceBind,
 		tunAdapter: tunAdapter,
+		disableDNS: disableDNS,
 	}
 }
 
@@ -49,6 +51,13 @@ func (t *WGTunDevice) Create(routes []string, dns string, searchDomains []string
 	routesString := routesToString(routes)
 	searchDomainsToString := searchDomainsToString(searchDomains)
 
+	// Skip DNS configuration when DisableDNS is enabled
+	if t.disableDNS {
+		log.Info("DNS is disabled, skipping DNS and search domain configuration")
+		dns = ""
+		searchDomainsToString = ""
+	}
+
 	fd, err := t.tunAdapter.ConfigureInterface(t.address.String(), t.mtu, dns, searchDomainsToString, routesString)
 	if err != nil {
 		log.Errorf("failed to create Android interface: %s", err)
@@ -70,7 +79,7 @@ func (t *WGTunDevice) Create(routes []string, dns string, searchDomains []string
 	// this helps with support for the older NetBird clients that had a hardcoded direct mode
 	// t.device.DisableSomeRoamingForBrokenMobileSemantics()
 
-	t.configurer = configurer.NewUSPConfigurer(t.device, t.name)
+	t.configurer = configurer.NewUSPConfigurer(t.device, t.name, t.iceBind.ActivityRecorder())
 	err = t.configurer.ConfigureInterface(t.key, t.port)
 	if err != nil {
 		t.device.Close()

client/iface/device/device_darwin.go

@@ -61,7 +61,7 @@ func (t *TunDevice) Create() (WGConfigurer, error) {
 		return nil, fmt.Errorf("error assigning ip: %s", err)
 	}
 
-	t.configurer = configurer.NewUSPConfigurer(t.device, t.name)
+	t.configurer = configurer.NewUSPConfigurer(t.device, t.name, t.iceBind.ActivityRecorder())
 	err = t.configurer.ConfigureInterface(t.key, t.port)
 	if err != nil {
 		t.device.Close()

client/iface/device/device_filter.go

@@ -9,11 +9,11 @@ import (
 
 // PacketFilter interface for firewall abilities
 type PacketFilter interface {
-	// DropOutgoing filter outgoing packets from host to external destinations
-	DropOutgoing(packetData []byte, size int) bool
+	// FilterOutbound filter outgoing packets from host to external destinations
+	FilterOutbound(packetData []byte, size int) bool
 
-	// DropIncoming filter incoming packets from external sources to host
-	DropIncoming(packetData []byte, size int) bool
+	// FilterInbound filter incoming packets from external sources to host
+	FilterInbound(packetData []byte, size int) bool
 
 	// AddUDPPacketHook calls hook when UDP packet from given direction matched
 	//
@@ -54,7 +54,7 @@ func (d *FilteredDevice) Read(bufs [][]byte, sizes []int, offset int) (n int, er
 	}
 
 	for i := 0; i < n; i++ {
-		if filter.DropOutgoing(bufs[i][offset:offset+sizes[i]], sizes[i]) {
+		if filter.FilterOutbound(bufs[i][offset:offset+sizes[i]], sizes[i]) {
 			bufs = append(bufs[:i], bufs[i+1:]...)
 			sizes = append(sizes[:i], sizes[i+1:]...)
 			n--
@@ -78,7 +78,7 @@ func (d *FilteredDevice) Write(bufs [][]byte, offset int) (int, error) {
 	filteredBufs := make([][]byte, 0, len(bufs))
 	dropped := 0
 	for _, buf := range bufs {
-		if !filter.DropIncoming(buf[offset:], len(buf)) {
+		if !filter.FilterInbound(buf[offset:], len(buf)) {
 			filteredBufs = append(filteredBufs, buf)
 			dropped++
 		}

client/iface/device/device_filter_test.go

@@ -146,7 +146,7 @@ func TestDeviceWrapperRead(t *testing.T) {
 		tun.EXPECT().Write(mockBufs, 0).Return(0, nil)
 
 		filter := mocks.NewMockPacketFilter(ctrl)
-		filter.EXPECT().DropIncoming(gomock.Any(), gomock.Any()).Return(true)
+		filter.EXPECT().FilterInbound(gomock.Any(), gomock.Any()).Return(true)
 
 		wrapped := newDeviceFilter(tun)
 		wrapped.filter = filter
@@ -201,7 +201,7 @@ func TestDeviceWrapperRead(t *testing.T) {
 				return 1, nil
 			})
 		filter := mocks.NewMockPacketFilter(ctrl)
-		filter.EXPECT().DropOutgoing(gomock.Any(), gomock.Any()).Return(true)
+		filter.EXPECT().FilterOutbound(gomock.Any(), gomock.Any()).Return(true)
 
 		wrapped := newDeviceFilter(tun)
 		wrapped.filter = filter

client/iface/device/device_ios.go

@@ -71,7 +71,7 @@ func (t *TunDevice) Create() (WGConfigurer, error) {
 	// this helps with support for the older NetBird clients that had a hardcoded direct mode
 	// t.device.DisableSomeRoamingForBrokenMobileSemantics()
 
-	t.configurer = configurer.NewUSPConfigurer(t.device, t.name)
+	t.configurer = configurer.NewUSPConfigurer(t.device, t.name, t.iceBind.ActivityRecorder())
 	err = t.configurer.ConfigureInterface(t.key, t.port)
 	if err != nil {
 		t.device.Close()

client/iface/device/device_kernel_unix.go

@@ -16,6 +16,7 @@ import (
 	"github.com/netbirdio/netbird/client/iface/configurer"
 	"github.com/netbirdio/netbird/client/iface/wgaddr"
 	"github.com/netbirdio/netbird/sharedsock"
+	nbnet "github.com/netbirdio/netbird/util/net"
 )
 
 type TunKernelDevice struct {
@@ -99,8 +100,14 @@ func (t *TunKernelDevice) Up() (*bind.UniversalUDPMuxDefault, error) {
 	if err != nil {
 		return nil, err
 	}
+
+	var udpConn net.PacketConn = rawSock
+	if !nbnet.AdvancedRouting() {
+		udpConn = nbnet.WrapPacketConn(rawSock)
+	}
+
 	bindParams := bind.UniversalUDPMuxParams{
-		UDPConn:   rawSock,
+		UDPConn:   udpConn,
 		Net:       t.transportNet,
 		FilterFn:  t.filterFn,
 		WGAddress: t.address,

client/iface/device/device_netstack.go

@@ -72,7 +72,7 @@ func (t *TunNetstackDevice) Create() (WGConfigurer, error) {
 		device.NewLogger(wgLogLevel(), "[netbird] "),
 	)
 
-	t.configurer = configurer.NewUSPConfigurer(t.device, t.name)
+	t.configurer = configurer.NewUSPConfigurer(t.device, t.name, t.iceBind.ActivityRecorder())
 	err = t.configurer.ConfigureInterface(t.key, t.port)
 	if err != nil {
 		_ = tunIface.Close()

client/iface/device/device_usp_unix.go

@@ -64,7 +64,7 @@ func (t *USPDevice) Create() (WGConfigurer, error) {
 		return nil, fmt.Errorf("error assigning ip: %s", err)
 	}
 
-	t.configurer = configurer.NewUSPConfigurer(t.device, t.name)
+	t.configurer = configurer.NewUSPConfigurer(t.device, t.name, t.iceBind.ActivityRecorder())
 	err = t.configurer.ConfigureInterface(t.key, t.port)
 	if err != nil {
 		t.device.Close()

client/iface/device/device_windows.go

@@ -94,7 +94,7 @@ func (t *TunDevice) Create() (WGConfigurer, error) {
 		return nil, fmt.Errorf("error assigning ip: %s", err)
 	}
 
-	t.configurer = configurer.NewUSPConfigurer(t.device, t.name)
+	t.configurer = configurer.NewUSPConfigurer(t.device, t.name, t.iceBind.ActivityRecorder())
 	err = t.configurer.ConfigureInterface(t.key, t.port)
 	if err != nil {
 		t.device.Close()

client/iface/device/interface.go

@@ -8,6 +8,7 @@ import (
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 
 	"github.com/netbirdio/netbird/client/iface/configurer"
+	"github.com/netbirdio/netbird/monotime"
 )
 
 type WGConfigurer interface {
@@ -19,4 +20,5 @@ type WGConfigurer interface {
 	Close()
 	GetStats() (map[string]configurer.WGStats, error)
 	FullStats() (*configurer.Stats, error)
+	LastActivities() map[string]monotime.Time
 }

client/iface/iface.go

@@ -21,6 +21,7 @@ import (
 	"github.com/netbirdio/netbird/client/iface/device"
 	"github.com/netbirdio/netbird/client/iface/wgaddr"
 	"github.com/netbirdio/netbird/client/iface/wgproxy"
+	"github.com/netbirdio/netbird/monotime"
 )
 
 const (
@@ -29,6 +30,11 @@ const (
 	WgInterfaceDefault = configurer.WgInterfaceDefault
 )
 
+var (
+	// ErrIfaceNotFound is returned when the WireGuard interface is not found
+	ErrIfaceNotFound = fmt.Errorf("wireguard interface not found")
+)
+
 type wgProxyFactory interface {
 	GetProxy() wgproxy.Proxy
 	Free() error
@@ -43,6 +49,7 @@ type WGIFaceOpts struct {
 	MobileArgs   *device.MobileIFaceArguments
 	TransportNet transport.Net
 	FilterFn     bind.FilterFn
+	DisableDNS   bool
 }
 
 // WGIface represents an interface instance
@@ -116,6 +123,9 @@ func (w *WGIface) UpdateAddr(newAddr string) error {
 func (w *WGIface) UpdatePeer(peerKey string, allowedIps []netip.Prefix, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error {
 	w.mu.Lock()
 	defer w.mu.Unlock()
+	if w.configurer == nil {
+		return ErrIfaceNotFound
+	}
 
 	log.Debugf("updating interface %s peer %s, endpoint %s, allowedIPs %v", w.tun.DeviceName(), peerKey, endpoint, allowedIps)
 	return w.configurer.UpdatePeer(peerKey, allowedIps, keepAlive, endpoint, preSharedKey)
@@ -125,6 +135,9 @@ func (w *WGIface) UpdatePeer(peerKey string, allowedIps []netip.Prefix, keepAliv
 func (w *WGIface) RemovePeer(peerKey string) error {
 	w.mu.Lock()
 	defer w.mu.Unlock()
+	if w.configurer == nil {
+		return ErrIfaceNotFound
+	}
 
 	log.Debugf("Removing peer %s from interface %s ", peerKey, w.tun.DeviceName())
 	return w.configurer.RemovePeer(peerKey)
@@ -134,6 +147,9 @@ func (w *WGIface) RemovePeer(peerKey string) error {
 func (w *WGIface) AddAllowedIP(peerKey string, allowedIP netip.Prefix) error {
 	w.mu.Lock()
 	defer w.mu.Unlock()
+	if w.configurer == nil {
+		return ErrIfaceNotFound
+	}
 
 	log.Debugf("Adding allowed IP to interface %s and peer %s: allowed IP %s ", w.tun.DeviceName(), peerKey, allowedIP)
 	return w.configurer.AddAllowedIP(peerKey, allowedIP)
@@ -143,6 +159,9 @@ func (w *WGIface) AddAllowedIP(peerKey string, allowedIP netip.Prefix) error {
 func (w *WGIface) RemoveAllowedIP(peerKey string, allowedIP netip.Prefix) error {
 	w.mu.Lock()
 	defer w.mu.Unlock()
+	if w.configurer == nil {
+		return ErrIfaceNotFound
+	}
 
 	log.Debugf("Removing allowed IP from interface %s and peer %s: allowed IP %s ", w.tun.DeviceName(), peerKey, allowedIP)
 	return w.configurer.RemoveAllowedIP(peerKey, allowedIP)
@@ -213,10 +232,29 @@ func (w *WGIface) GetWGDevice() *wgdevice.Device {
 
 // GetStats returns the last handshake time, rx and tx bytes
 func (w *WGIface) GetStats() (map[string]configurer.WGStats, error) {
+	if w.configurer == nil {
+		return nil, ErrIfaceNotFound
+	}
 	return w.configurer.GetStats()
 }
 
+func (w *WGIface) LastActivities() map[string]monotime.Time {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+
+	if w.configurer == nil {
+		return nil
+	}
+
+	return w.configurer.LastActivities()
+
+}
+
 func (w *WGIface) FullStats() (*configurer.Stats, error) {
+	if w.configurer == nil {
+		return nil, ErrIfaceNotFound
+	}
+
 	return w.configurer.FullStats()
 }
 

client/iface/iface_new_android.go

@@ -18,7 +18,7 @@ func NewWGIFace(opts WGIFaceOpts) (*WGIface, error) {
 
 	wgIFace := &WGIface{
 		userspaceBind:  true,
-		tun:            device.NewTunDevice(wgAddress, opts.WGPort, opts.WGPrivKey, opts.MTU, iceBind, opts.MobileArgs.TunAdapter),
+		tun:            device.NewTunDevice(wgAddress, opts.WGPort, opts.WGPrivKey, opts.MTU, iceBind, opts.MobileArgs.TunAdapter, opts.DisableDNS),
 		wgProxyFactory: wgproxy.NewUSPFactory(iceBind),
 	}
 	return wgIFace, nil

client/iface/mocks/filter.go

@@ -48,32 +48,32 @@ func (mr *MockPacketFilterMockRecorder) AddUDPPacketHook(arg0, arg1, arg2, arg3
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "AddUDPPacketHook", reflect.TypeOf((*MockPacketFilter)(nil).AddUDPPacketHook), arg0, arg1, arg2, arg3)
 }
 
-// DropIncoming mocks base method.
-func (m *MockPacketFilter) DropIncoming(arg0 []byte, arg1 int) bool {
+// FilterInbound mocks base method.
+func (m *MockPacketFilter) FilterInbound(arg0 []byte, arg1 int) bool {
 	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "DropIncoming", arg0, arg1)
+	ret := m.ctrl.Call(m, "FilterInbound", arg0, arg1)
 	ret0, _ := ret[0].(bool)
 	return ret0
 }
 
-// DropIncoming indicates an expected call of DropIncoming.
-func (mr *MockPacketFilterMockRecorder) DropIncoming(arg0 interface{}, arg1 any) *gomock.Call {
+// FilterInbound indicates an expected call of FilterInbound.
+func (mr *MockPacketFilterMockRecorder) FilterInbound(arg0 interface{}, arg1 any) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "DropIncoming", reflect.TypeOf((*MockPacketFilter)(nil).DropIncoming), arg0, arg1)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "FilterInbound", reflect.TypeOf((*MockPacketFilter)(nil).FilterInbound), arg0, arg1)
 }
 
-// DropOutgoing mocks base method.
-func (m *MockPacketFilter) DropOutgoing(arg0 []byte, arg1 int) bool {
+// FilterOutbound mocks base method.
+func (m *MockPacketFilter) FilterOutbound(arg0 []byte, arg1 int) bool {
 	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "DropOutgoing", arg0, arg1)
+	ret := m.ctrl.Call(m, "FilterOutbound", arg0, arg1)
 	ret0, _ := ret[0].(bool)
 	return ret0
 }
 
-// DropOutgoing indicates an expected call of DropOutgoing.
-func (mr *MockPacketFilterMockRecorder) DropOutgoing(arg0 interface{}, arg1 any) *gomock.Call {
+// FilterOutbound indicates an expected call of FilterOutbound.
+func (mr *MockPacketFilterMockRecorder) FilterOutbound(arg0 interface{}, arg1 any) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "DropOutgoing", reflect.TypeOf((*MockPacketFilter)(nil).DropOutgoing), arg0, arg1)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "FilterOutbound", reflect.TypeOf((*MockPacketFilter)(nil).FilterOutbound), arg0, arg1)
 }
 
 // RemovePacketHook mocks base method.

client/iface/mocks/iface/mocks/filter.go

@@ -46,32 +46,32 @@ func (mr *MockPacketFilterMockRecorder) AddUDPPacketHook(arg0, arg1, arg2, arg3
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "AddUDPPacketHook", reflect.TypeOf((*MockPacketFilter)(nil).AddUDPPacketHook), arg0, arg1, arg2, arg3)
 }
 
-// DropIncoming mocks base method.
-func (m *MockPacketFilter) DropIncoming(arg0 []byte) bool {
+// FilterInbound mocks base method.
+func (m *MockPacketFilter) FilterInbound(arg0 []byte) bool {
 	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "DropIncoming", arg0)
+	ret := m.ctrl.Call(m, "FilterInbound", arg0)
 	ret0, _ := ret[0].(bool)
 	return ret0
 }
 
-// DropIncoming indicates an expected call of DropIncoming.
-func (mr *MockPacketFilterMockRecorder) DropIncoming(arg0 interface{}) *gomock.Call {
+// FilterInbound indicates an expected call of FilterInbound.
+func (mr *MockPacketFilterMockRecorder) FilterInbound(arg0 interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "DropIncoming", reflect.TypeOf((*MockPacketFilter)(nil).DropIncoming), arg0)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "FilterInbound", reflect.TypeOf((*MockPacketFilter)(nil).FilterInbound), arg0)
 }
 
-// DropOutgoing mocks base method.
-func (m *MockPacketFilter) DropOutgoing(arg0 []byte) bool {
+// FilterOutbound mocks base method.
+func (m *MockPacketFilter) FilterOutbound(arg0 []byte) bool {
 	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "DropOutgoing", arg0)
+	ret := m.ctrl.Call(m, "FilterOutbound", arg0)
 	ret0, _ := ret[0].(bool)
 	return ret0
 }
 
-// DropOutgoing indicates an expected call of DropOutgoing.
-func (mr *MockPacketFilterMockRecorder) DropOutgoing(arg0 interface{}) *gomock.Call {
+// FilterOutbound indicates an expected call of FilterOutbound.
+func (mr *MockPacketFilterMockRecorder) FilterOutbound(arg0 interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "DropOutgoing", reflect.TypeOf((*MockPacketFilter)(nil).DropOutgoing), arg0)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "FilterOutbound", reflect.TypeOf((*MockPacketFilter)(nil).FilterOutbound), arg0)
 }
 
 // SetNetwork mocks base method.

client/iface/netstack/tun.go

@@ -41,9 +41,12 @@ func (t *NetStackTun) Create() (tun.Device, *netstack.Net, error) {
 	}
 	t.tundev = nsTunDev
 
-	skipProxy, err := strconv.ParseBool(os.Getenv(EnvSkipProxy))
-	if err != nil {
-		log.Errorf("failed to parse %s: %s", EnvSkipProxy, err)
+	var skipProxy bool
+	if val := os.Getenv(EnvSkipProxy); val != "" {
+		skipProxy, err = strconv.ParseBool(val)
+		if err != nil {
+			log.Errorf("failed to parse %s: %s", EnvSkipProxy, err)
+		}
 	}
 	if skipProxy {
 		return nsTunDev, tunNet, nil

client/iface/wgproxy/bind/proxy.go

@@ -12,6 +12,7 @@ import (
 	log "github.com/sirupsen/logrus"
 
 	"github.com/netbirdio/netbird/client/iface/bind"
+	"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
 )
 
 type ProxyBind struct {
@@ -28,6 +29,17 @@ type ProxyBind struct {
 	pausedMu  sync.Mutex
 	paused    bool
 	isStarted bool
+
+	closeListener *listener.CloseListener
+}
+
+func NewProxyBind(bind *bind.ICEBind) *ProxyBind {
+	p := &ProxyBind{
+		Bind:          bind,
+		closeListener: listener.NewCloseListener(),
+	}
+
+	return p
 }
 
 // AddTurnConn adds a new connection to the bind.
@@ -54,6 +66,10 @@ func (p *ProxyBind) EndpointAddr() *net.UDPAddr {
 	}
 }
 
+func (p *ProxyBind) SetDisconnectListener(disconnected func()) {
+	p.closeListener.SetCloseListener(disconnected)
+}
+
 func (p *ProxyBind) Work() {
 	if p.remoteConn == nil {
 		return
@@ -96,6 +112,9 @@ func (p *ProxyBind) close() error {
 	if p.closed {
 		return nil
 	}
+
+	p.closeListener.SetCloseListener(nil)
+
 	p.closed = true
 
 	p.cancel()
@@ -122,6 +141,7 @@ func (p *ProxyBind) proxyToLocal(ctx context.Context) {
 			if ctx.Err() != nil {
 				return
 			}
+			p.closeListener.Notify()
 			log.Errorf("failed to read from remote conn: %s, %s", p.remoteConn.RemoteAddr(), err)
 			return
 		}

client/iface/wgproxy/ebpf/wrapper.go

@@ -11,6 +11,8 @@ import (
 	"sync"
 
 	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
 )
 
 // ProxyWrapper help to keep the remoteConn instance for net.Conn.Close function call
@@ -26,6 +28,15 @@ type ProxyWrapper struct {
 	pausedMu  sync.Mutex
 	paused    bool
 	isStarted bool
+
+	closeListener *listener.CloseListener
+}
+
+func NewProxyWrapper(WgeBPFProxy *WGEBPFProxy) *ProxyWrapper {
+	return &ProxyWrapper{
+		WgeBPFProxy:   WgeBPFProxy,
+		closeListener: listener.NewCloseListener(),
+	}
 }
 
 func (p *ProxyWrapper) AddTurnConn(ctx context.Context, endpoint *net.UDPAddr, remoteConn net.Conn) error {
@@ -43,6 +54,10 @@ func (p *ProxyWrapper) EndpointAddr() *net.UDPAddr {
 	return p.wgEndpointAddr
 }
 
+func (p *ProxyWrapper) SetDisconnectListener(disconnected func()) {
+	p.closeListener.SetCloseListener(disconnected)
+}
+
 func (p *ProxyWrapper) Work() {
 	if p.remoteConn == nil {
 		return
@@ -77,6 +92,8 @@ func (e *ProxyWrapper) CloseConn() error {
 
 	e.cancel()
 
+	e.closeListener.SetCloseListener(nil)
+
 	if err := e.remoteConn.Close(); err != nil && !errors.Is(err, net.ErrClosed) {
 		return fmt.Errorf("failed to close remote conn: %w", err)
 	}
@@ -117,6 +134,7 @@ func (p *ProxyWrapper) readFromRemote(ctx context.Context, buf []byte) (int, err
 		if ctx.Err() != nil {
 			return 0, ctx.Err()
 		}
+		p.closeListener.Notify()
 		if !errors.Is(err, io.EOF) {
 			log.Errorf("failed to read from turn conn (endpoint: :%d): %s", p.wgEndpointAddr.Port, err)
 		}

client/iface/wgproxy/factory_kernel.go

@@ -36,9 +36,8 @@ func (w *KernelFactory) GetProxy() Proxy {
 		return udpProxy.NewWGUDPProxy(w.wgPort)
 	}
 
-	return &ebpf.ProxyWrapper{
-		WgeBPFProxy: w.ebpfProxy,
-	}
+	return ebpf.NewProxyWrapper(w.ebpfProxy)
+
 }
 
 func (w *KernelFactory) Free() error {

client/iface/wgproxy/factory_usp.go

@@ -20,9 +20,7 @@ func NewUSPFactory(iceBind *bind.ICEBind) *USPFactory {
 }
 
 func (w *USPFactory) GetProxy() Proxy {
-	return &proxyBind.ProxyBind{
-		Bind: w.bind,
-	}
+	return proxyBind.NewProxyBind(w.bind)
 }
 
 func (w *USPFactory) Free() error {

client/iface/wgproxy/listener/listener.go

@@ -0,0 +1,19 @@
+package listener
+
+type CloseListener struct {
+	listener func()
+}
+
+func NewCloseListener() *CloseListener {
+	return &CloseListener{}
+}
+
+func (c *CloseListener) SetCloseListener(listener func()) {
+	c.listener = listener
+}
+
+func (c *CloseListener) Notify() {
+	if c.listener != nil {
+		c.listener()
+	}
+}

client/iface/wgproxy/proxy.go

@@ -12,4 +12,5 @@ type Proxy interface {
 	Work()                      // Work start or resume the proxy
 	Pause()                     // Pause to forward the packages from remote connection to WireGuard. The opposite way still works.
 	CloseConn() error
+	SetDisconnectListener(disconnected func())
 }

client/iface/wgproxy/proxy_test.go

@@ -98,9 +98,7 @@ func TestProxyCloseByRemoteConn(t *testing.T) {
 				t.Errorf("failed to free ebpf proxy: %s", err)
 			}
 		}()
-		proxyWrapper := &ebpf.ProxyWrapper{
-			WgeBPFProxy: ebpfProxy,
-		}
+		proxyWrapper := ebpf.NewProxyWrapper(ebpfProxy)
 
 		tests = append(tests, struct {
 			name  string

client/iface/wgproxy/udp/proxy.go

@@ -12,6 +12,7 @@ import (
 	log "github.com/sirupsen/logrus"
 
 	cerrors "github.com/netbirdio/netbird/client/errors"
+	"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
 )
 
 // WGUDPProxy proxies
@@ -28,6 +29,8 @@ type WGUDPProxy struct {
 	pausedMu  sync.Mutex
 	paused    bool
 	isStarted bool
+
+	closeListener *listener.CloseListener
 }
 
 // NewWGUDPProxy instantiate a UDP based WireGuard proxy. This is not a thread safe implementation
@@ -35,6 +38,7 @@ func NewWGUDPProxy(wgPort int) *WGUDPProxy {
 	log.Debugf("Initializing new user space proxy with port %d", wgPort)
 	p := &WGUDPProxy{
 		localWGListenPort: wgPort,
+		closeListener:     listener.NewCloseListener(),
 	}
 	return p
 }
@@ -67,6 +71,10 @@ func (p *WGUDPProxy) EndpointAddr() *net.UDPAddr {
 	return endpointUdpAddr
 }
 
+func (p *WGUDPProxy) SetDisconnectListener(disconnected func()) {
+	p.closeListener.SetCloseListener(disconnected)
+}
+
 // Work starts the proxy or resumes it if it was paused
 func (p *WGUDPProxy) Work() {
 	if p.remoteConn == nil {
@@ -111,6 +119,8 @@ func (p *WGUDPProxy) close() error {
 	if p.closed {
 		return nil
 	}
+
+	p.closeListener.SetCloseListener(nil)
 	p.closed = true
 
 	p.cancel()
@@ -141,6 +151,7 @@ func (p *WGUDPProxy) proxyToRemote(ctx context.Context) {
 			if ctx.Err() != nil {
 				return
 			}
+			p.closeListener.Notify()
 			log.Debugf("failed to read from wg interface conn: %s", err)
 			return
 		}

client/internal/acl/manager.go

@@ -398,11 +398,15 @@ func (d *DefaultManager) squashAcceptRules(
 	//
 	// We zeroed this to notify squash function that this protocol can't be squashed.
 	addRuleToCalculationMap := func(i int, r *mgmProto.FirewallRule, protocols map[mgmProto.RuleProtocol]*protoMatch) {
-		drop := r.Action == mgmProto.RuleAction_DROP || r.Port != ""
-		if drop {
+		hasPortRestrictions := r.Action == mgmProto.RuleAction_DROP ||
+			r.Port != "" || !portInfoEmpty(r.PortInfo)
+
+		if hasPortRestrictions {
+			// Don't squash rules with port restrictions
 			protocols[r.Protocol] = &protoMatch{ips: map[string]int{}}
 			return
 		}
+
 		if _, ok := protocols[r.Protocol]; !ok {
 			protocols[r.Protocol] = &protoMatch{
 				ips: map[string]int{},

client/internal/acl/manager_test.go

@@ -330,6 +330,434 @@ func TestDefaultManagerSquashRulesNoAffect(t *testing.T) {
 	assert.Equal(t, len(networkMap.FirewallRules), len(rules))
 }
 
+func TestDefaultManagerSquashRulesWithPortRestrictions(t *testing.T) {
+	tests := []struct {
+		name          string
+		rules         []*mgmProto.FirewallRule
+		expectedCount int
+		description   string
+	}{
+		{
+			name: "should not squash rules with port ranges",
+			rules: []*mgmProto.FirewallRule{
+				{
+					PeerIP:    "10.93.0.1",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					PortInfo: &mgmProto.PortInfo{
+						PortSelection: &mgmProto.PortInfo_Range_{
+							Range: &mgmProto.PortInfo_Range{
+								Start: 8080,
+								End:   8090,
+							},
+						},
+					},
+				},
+				{
+					PeerIP:    "10.93.0.2",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					PortInfo: &mgmProto.PortInfo{
+						PortSelection: &mgmProto.PortInfo_Range_{
+							Range: &mgmProto.PortInfo_Range{
+								Start: 8080,
+								End:   8090,
+							},
+						},
+					},
+				},
+				{
+					PeerIP:    "10.93.0.3",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					PortInfo: &mgmProto.PortInfo{
+						PortSelection: &mgmProto.PortInfo_Range_{
+							Range: &mgmProto.PortInfo_Range{
+								Start: 8080,
+								End:   8090,
+							},
+						},
+					},
+				},
+				{
+					PeerIP:    "10.93.0.4",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					PortInfo: &mgmProto.PortInfo{
+						PortSelection: &mgmProto.PortInfo_Range_{
+							Range: &mgmProto.PortInfo_Range{
+								Start: 8080,
+								End:   8090,
+							},
+						},
+					},
+				},
+			},
+			expectedCount: 4,
+			description:   "Rules with port ranges should not be squashed even if they cover all peers",
+		},
+		{
+			name: "should not squash rules with specific ports",
+			rules: []*mgmProto.FirewallRule{
+				{
+					PeerIP:    "10.93.0.1",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					PortInfo: &mgmProto.PortInfo{
+						PortSelection: &mgmProto.PortInfo_Port{
+							Port: 80,
+						},
+					},
+				},
+				{
+					PeerIP:    "10.93.0.2",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					PortInfo: &mgmProto.PortInfo{
+						PortSelection: &mgmProto.PortInfo_Port{
+							Port: 80,
+						},
+					},
+				},
+				{
+					PeerIP:    "10.93.0.3",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					PortInfo: &mgmProto.PortInfo{
+						PortSelection: &mgmProto.PortInfo_Port{
+							Port: 80,
+						},
+					},
+				},
+				{
+					PeerIP:    "10.93.0.4",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					PortInfo: &mgmProto.PortInfo{
+						PortSelection: &mgmProto.PortInfo_Port{
+							Port: 80,
+						},
+					},
+				},
+			},
+			expectedCount: 4,
+			description:   "Rules with specific ports should not be squashed even if they cover all peers",
+		},
+		{
+			name: "should not squash rules with legacy port field",
+			rules: []*mgmProto.FirewallRule{
+				{
+					PeerIP:    "10.93.0.1",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					Port:      "443",
+				},
+				{
+					PeerIP:    "10.93.0.2",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					Port:      "443",
+				},
+				{
+					PeerIP:    "10.93.0.3",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					Port:      "443",
+				},
+				{
+					PeerIP:    "10.93.0.4",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					Port:      "443",
+				},
+			},
+			expectedCount: 4,
+			description:   "Rules with legacy port field should not be squashed",
+		},
+		{
+			name: "should not squash rules with DROP action",
+			rules: []*mgmProto.FirewallRule{
+				{
+					PeerIP:    "10.93.0.1",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_DROP,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+				{
+					PeerIP:    "10.93.0.2",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_DROP,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+				{
+					PeerIP:    "10.93.0.3",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_DROP,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+				{
+					PeerIP:    "10.93.0.4",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_DROP,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+			},
+			expectedCount: 4,
+			description:   "Rules with DROP action should not be squashed",
+		},
+		{
+			name: "should squash rules without port restrictions",
+			rules: []*mgmProto.FirewallRule{
+				{
+					PeerIP:    "10.93.0.1",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+				{
+					PeerIP:    "10.93.0.2",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+				{
+					PeerIP:    "10.93.0.3",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+				{
+					PeerIP:    "10.93.0.4",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+			},
+			expectedCount: 1,
+			description:   "Rules without port restrictions should be squashed into a single 0.0.0.0 rule",
+		},
+		{
+			name: "mixed rules should not squash protocol with port restrictions",
+			rules: []*mgmProto.FirewallRule{
+				{
+					PeerIP:    "10.93.0.1",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+				{
+					PeerIP:    "10.93.0.2",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					PortInfo: &mgmProto.PortInfo{
+						PortSelection: &mgmProto.PortInfo_Port{
+							Port: 80,
+						},
+					},
+				},
+				{
+					PeerIP:    "10.93.0.3",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+				{
+					PeerIP:    "10.93.0.4",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+				},
+			},
+			expectedCount: 4,
+			description:   "TCP should not be squashed because one rule has port restrictions",
+		},
+		{
+			name: "should squash UDP but not TCP when TCP has port restrictions",
+			rules: []*mgmProto.FirewallRule{
+				// TCP rules with port restrictions - should NOT be squashed
+				{
+					PeerIP:    "10.93.0.1",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					Port:      "443",
+				},
+				{
+					PeerIP:    "10.93.0.2",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					Port:      "443",
+				},
+				{
+					PeerIP:    "10.93.0.3",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					Port:      "443",
+				},
+				{
+					PeerIP:    "10.93.0.4",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_TCP,
+					Port:      "443",
+				},
+				// UDP rules without port restrictions - SHOULD be squashed
+				{
+					PeerIP:    "10.93.0.1",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_UDP,
+				},
+				{
+					PeerIP:    "10.93.0.2",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_UDP,
+				},
+				{
+					PeerIP:    "10.93.0.3",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_UDP,
+				},
+				{
+					PeerIP:    "10.93.0.4",
+					Direction: mgmProto.RuleDirection_IN,
+					Action:    mgmProto.RuleAction_ACCEPT,
+					Protocol:  mgmProto.RuleProtocol_UDP,
+				},
+			},
+			expectedCount: 5, // 4 TCP rules + 1 squashed UDP rule (0.0.0.0)
+			description:   "UDP should be squashed to 0.0.0.0 rule, but TCP should remain as individual rules due to port restrictions",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			networkMap := &mgmProto.NetworkMap{
+				RemotePeers: []*mgmProto.RemotePeerConfig{
+					{AllowedIps: []string{"10.93.0.1"}},
+					{AllowedIps: []string{"10.93.0.2"}},
+					{AllowedIps: []string{"10.93.0.3"}},
+					{AllowedIps: []string{"10.93.0.4"}},
+				},
+				FirewallRules: tt.rules,
+			}
+
+			manager := &DefaultManager{}
+			rules, _ := manager.squashAcceptRules(networkMap)
+
+			assert.Equal(t, tt.expectedCount, len(rules), tt.description)
+
+			// For squashed rules, verify we get the expected 0.0.0.0 rule
+			if tt.expectedCount == 1 {
+				assert.Equal(t, "0.0.0.0", rules[0].PeerIP)
+				assert.Equal(t, mgmProto.RuleDirection_IN, rules[0].Direction)
+				assert.Equal(t, mgmProto.RuleAction_ACCEPT, rules[0].Action)
+			}
+		})
+	}
+}
+
+func TestPortInfoEmpty(t *testing.T) {
+	tests := []struct {
+		name     string
+		portInfo *mgmProto.PortInfo
+		expected bool
+	}{
+		{
+			name:     "nil PortInfo should be empty",
+			portInfo: nil,
+			expected: true,
+		},
+		{
+			name: "PortInfo with zero port should be empty",
+			portInfo: &mgmProto.PortInfo{
+				PortSelection: &mgmProto.PortInfo_Port{
+					Port: 0,
+				},
+			},
+			expected: true,
+		},
+		{
+			name: "PortInfo with valid port should not be empty",
+			portInfo: &mgmProto.PortInfo{
+				PortSelection: &mgmProto.PortInfo_Port{
+					Port: 80,
+				},
+			},
+			expected: false,
+		},
+		{
+			name: "PortInfo with nil range should be empty",
+			portInfo: &mgmProto.PortInfo{
+				PortSelection: &mgmProto.PortInfo_Range_{
+					Range: nil,
+				},
+			},
+			expected: true,
+		},
+		{
+			name: "PortInfo with zero start range should be empty",
+			portInfo: &mgmProto.PortInfo{
+				PortSelection: &mgmProto.PortInfo_Range_{
+					Range: &mgmProto.PortInfo_Range{
+						Start: 0,
+						End:   100,
+					},
+				},
+			},
+			expected: true,
+		},
+		{
+			name: "PortInfo with zero end range should be empty",
+			portInfo: &mgmProto.PortInfo{
+				PortSelection: &mgmProto.PortInfo_Range_{
+					Range: &mgmProto.PortInfo_Range{
+						Start: 80,
+						End:   0,
+					},
+				},
+			},
+			expected: true,
+		},
+		{
+			name: "PortInfo with valid range should not be empty",
+			portInfo: &mgmProto.PortInfo{
+				PortSelection: &mgmProto.PortInfo_Range_{
+					Range: &mgmProto.PortInfo_Range{
+						Start: 8080,
+						End:   8090,
+					},
+				},
+			},
+			expected: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := portInfoEmpty(tt.portInfo)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}
+
 func TestDefaultManagerEnableSSHRules(t *testing.T) {
 	networkMap := &mgmProto.NetworkMap{
 		PeerConfig: &mgmProto.PeerConfig{

client/internal/config.go

@@ -223,6 +223,8 @@ func createNewConfig(input ConfigInput) (*Config, error) {
 	config := &Config{
 		// defaults to false only for new (post 0.26) configurations
 		ServerSSHAllowed: util.False(),
+		// default to disabling server routes on Android for security
+		DisableServerRoutes: runtime.GOOS == "android",
 	}
 
 	if _, err := config.apply(input); err != nil {
@@ -317,10 +319,6 @@ func (config *Config) apply(input ConfigInput) (updated bool, err error) {
 			*input.WireguardPort, config.WgPort)
 		config.WgPort = *input.WireguardPort
 		updated = true
-	} else if config.WgPort == 0 {
-		config.WgPort = iface.DefaultWgPort
-		log.Infof("using default Wireguard port %d", config.WgPort)
-		updated = true
 	}
 
 	if input.InterfaceName != nil && *input.InterfaceName != config.WgIface {
@@ -416,9 +414,15 @@ func (config *Config) apply(input ConfigInput) (updated bool, err error) {
 		config.ServerSSHAllowed = input.ServerSSHAllowed
 		updated = true
 	} else if config.ServerSSHAllowed == nil {
-		// enables SSH for configs from old versions to preserve backwards compatibility
-		log.Infof("falling back to enabled SSH server for pre-existing configuration")
-		config.ServerSSHAllowed = util.True()
+		if runtime.GOOS == "android" {
+			// default to disabled SSH on Android for security
+			log.Infof("setting SSH server to false by default on Android")
+			config.ServerSSHAllowed = util.False()
+		} else {
+			// enables SSH for configs from old versions to preserve backwards compatibility
+			log.Infof("falling back to enabled SSH server for pre-existing configuration")
+			config.ServerSSHAllowed = util.True()
+		}
 		updated = true
 	}
 

client/internal/conn_mgr.go

@@ -12,7 +12,6 @@ import (
 	"github.com/netbirdio/netbird/client/internal/lazyconn"
 	"github.com/netbirdio/netbird/client/internal/lazyconn/manager"
 	"github.com/netbirdio/netbird/client/internal/peer"
-	"github.com/netbirdio/netbird/client/internal/peer/dispatcher"
 	"github.com/netbirdio/netbird/client/internal/peerstore"
 	"github.com/netbirdio/netbird/route"
 )
@@ -26,11 +25,11 @@ import (
 //
 // The implementation is not thread-safe; it is protected by engine.syncMsgMux.
 type ConnMgr struct {
-	peerStore      *peerstore.Store
-	statusRecorder *peer.Status
-	iface          lazyconn.WGIface
-	dispatcher     *dispatcher.ConnectionDispatcher
-	enabledLocally bool
+	peerStore        *peerstore.Store
+	statusRecorder   *peer.Status
+	iface            lazyconn.WGIface
+	enabledLocally   bool
+	rosenpassEnabled bool
 
 	lazyConnMgr *manager.Manager
 
@@ -39,12 +38,12 @@ type ConnMgr struct {
 	lazyCtxCancel context.CancelFunc
 }
 
-func NewConnMgr(engineConfig *EngineConfig, statusRecorder *peer.Status, peerStore *peerstore.Store, iface lazyconn.WGIface, dispatcher *dispatcher.ConnectionDispatcher) *ConnMgr {
+func NewConnMgr(engineConfig *EngineConfig, statusRecorder *peer.Status, peerStore *peerstore.Store, iface lazyconn.WGIface) *ConnMgr {
 	e := &ConnMgr{
-		peerStore:      peerStore,
-		statusRecorder: statusRecorder,
-		iface:          iface,
-		dispatcher:     dispatcher,
+		peerStore:        peerStore,
+		statusRecorder:   statusRecorder,
+		iface:            iface,
+		rosenpassEnabled: engineConfig.RosenpassEnabled,
 	}
 	if engineConfig.LazyConnectionEnabled || lazyconn.IsLazyConnEnabledByEnv() {
 		e.enabledLocally = true
@@ -64,6 +63,11 @@ func (e *ConnMgr) Start(ctx context.Context) {
 		return
 	}
 
+	if e.rosenpassEnabled {
+		log.Warnf("rosenpass connection manager is enabled, lazy connection manager will not be started")
+		return
+	}
+
 	e.initLazyManager(ctx)
 	e.statusRecorder.UpdateLazyConnection(true)
 }
@@ -83,7 +87,12 @@ func (e *ConnMgr) UpdatedRemoteFeatureFlag(ctx context.Context, enabled bool) er
 			return nil
 		}
 
-		log.Infof("lazy connection manager is enabled by management feature flag")
+		if e.rosenpassEnabled {
+			log.Infof("rosenpass connection manager is enabled, lazy connection manager will not be started")
+			return nil
+		}
+
+		log.Warnf("lazy connection manager is enabled by management feature flag")
 		e.initLazyManager(ctx)
 		e.statusRecorder.UpdateLazyConnection(true)
 		return e.addPeersToLazyConnManager()
@@ -133,7 +142,7 @@ func (e *ConnMgr) SetExcludeList(ctx context.Context, peerIDs map[string]bool) {
 		excludedPeers = append(excludedPeers, lazyPeerCfg)
 	}
 
-	added := e.lazyConnMgr.ExcludePeer(e.lazyCtx, excludedPeers)
+	added := e.lazyConnMgr.ExcludePeer(excludedPeers)
 	for _, peerID := range added {
 		var peerConn *peer.Conn
 		var exists bool
@@ -201,7 +210,7 @@ func (e *ConnMgr) RemovePeerConn(peerKey string) {
 	if !ok {
 		return
 	}
-	defer conn.Close()
+	defer conn.Close(false)
 
 	if !e.isStartedWithLazyMgr() {
 		return
@@ -211,23 +220,27 @@ func (e *ConnMgr) RemovePeerConn(peerKey string) {
 	conn.Log.Infof("removed peer from lazy conn manager")
 }
 
-func (e *ConnMgr) OnSignalMsg(ctx context.Context, peerKey string) (*peer.Conn, bool) {
-	conn, ok := e.peerStore.PeerConn(peerKey)
-	if !ok {
-		return nil, false
-	}
-
+func (e *ConnMgr) ActivatePeer(ctx context.Context, conn *peer.Conn) {
 	if !e.isStartedWithLazyMgr() {
-		return conn, true
+		return
 	}
 
-	if found := e.lazyConnMgr.ActivatePeer(e.lazyCtx, peerKey); found {
-		conn.Log.Infof("activated peer from inactive state")
+	if found := e.lazyConnMgr.ActivatePeer(conn.GetKey()); found {
 		if err := conn.Open(ctx); err != nil {
 			conn.Log.Errorf("failed to open connection: %v", err)
 		}
 	}
-	return conn, true
+}
+
+// DeactivatePeer deactivates a peer connection in the lazy connection manager.
+// If locally the lazy connection is disabled, we force the peer connection open.
+func (e *ConnMgr) DeactivatePeer(conn *peer.Conn) {
+	if !e.isStartedWithLazyMgr() {
+		return
+	}
+
+	conn.Log.Infof("closing peer connection: remote peer initiated inactive, idle lazy state and sent GOAWAY")
+	e.lazyConnMgr.DeactivatePeer(conn.ConnID())
 }
 
 func (e *ConnMgr) Close() {
@@ -244,7 +257,7 @@ func (e *ConnMgr) initLazyManager(engineCtx context.Context) {
 	cfg := manager.Config{
 		InactivityThreshold: inactivityThresholdEnv(),
 	}
-	e.lazyConnMgr = manager.NewManager(cfg, engineCtx, e.peerStore, e.iface, e.dispatcher)
+	e.lazyConnMgr = manager.NewManager(cfg, engineCtx, e.peerStore, e.iface)
 
 	e.lazyCtx, e.lazyCtxCancel = context.WithCancel(engineCtx)
 
@@ -275,7 +288,7 @@ func (e *ConnMgr) addPeersToLazyConnManager() error {
 		lazyPeerCfgs = append(lazyPeerCfgs, lazyPeerCfg)
 	}
 
-	return e.lazyConnMgr.AddActivePeers(e.lazyCtx, lazyPeerCfgs)
+	return e.lazyConnMgr.AddActivePeers(lazyPeerCfgs)
 }
 
 func (e *ConnMgr) closeManager(ctx context.Context) {

client/internal/connect.go

@@ -17,7 +17,6 @@ import (
 	"google.golang.org/grpc/codes"
 	gstatus "google.golang.org/grpc/status"
 
-	"github.com/netbirdio/netbird/client/iface"
 	"github.com/netbirdio/netbird/client/iface/device"
 	"github.com/netbirdio/netbird/client/internal/dns"
 	"github.com/netbirdio/netbird/client/internal/listener"
@@ -526,17 +525,13 @@ func statusRecorderToSignalConnStateNotifier(statusRecorder *peer.Status) signal
 
 // freePort attempts to determine if the provided port is available, if not it will ask the system for a free port.
 func freePort(initPort int) (int, error) {
-	addr := net.UDPAddr{}
-	if initPort == 0 {
-		initPort = iface.DefaultWgPort
-	}
-
-	addr.Port = initPort
+	addr := net.UDPAddr{Port: initPort}
 
 	conn, err := net.ListenUDP("udp", &addr)
 	if err == nil {
+		returnPort := conn.LocalAddr().(*net.UDPAddr).Port
 		closeConnWithLog(conn)
-		return initPort, nil
+		return returnPort, nil
 	}
 
 	// if the port is already in use, ask the system for a free port

client/internal/connect_test.go

@@ -13,10 +13,10 @@ func Test_freePort(t *testing.T) {
 		shouldMatch bool
 	}{
 		{
-			name:        "not provided, fallback to default",
+			name:        "when port is 0 use random port",
 			port:        0,
-			want:        51820,
-			shouldMatch: true,
+			want:        0,
+			shouldMatch: false,
 		},
 		{
 			name:        "provided and available",
@@ -31,7 +31,7 @@ func Test_freePort(t *testing.T) {
 			shouldMatch: false,
 		},
 	}
-	c1, err := net.ListenUDP("udp", &net.UDPAddr{Port: 51830})
+	c1, err := net.ListenUDP("udp", &net.UDPAddr{Port: 0})
 	if err != nil {
 		t.Errorf("freePort error = %v", err)
 	}
@@ -39,6 +39,14 @@ func Test_freePort(t *testing.T) {
 		_ = c1.Close()
 	}(c1)
 
+	if tests[1].port == c1.LocalAddr().(*net.UDPAddr).Port {
+		tests[1].port++
+		tests[1].want++
+	}
+
+	tests[2].port = c1.LocalAddr().(*net.UDPAddr).Port
+	tests[2].want = c1.LocalAddr().(*net.UDPAddr).Port
+
 	for _, tt := range tests {
 
 		t.Run(tt.name, func(t *testing.T) {

client/internal/debug/debug.go

@@ -167,6 +167,7 @@ type BundleGenerator struct {
 	anonymize         bool
 	clientStatus      string
 	includeSystemInfo bool
+	logFileCount      uint32
 
 	archive *zip.Writer
 }
@@ -175,6 +176,7 @@ type BundleConfig struct {
 	Anonymize         bool
 	ClientStatus      string
 	IncludeSystemInfo bool
+	LogFileCount      uint32
 }
 
 type GeneratorDependencies struct {
@@ -185,6 +187,12 @@ type GeneratorDependencies struct {
 }
 
 func NewBundleGenerator(deps GeneratorDependencies, cfg BundleConfig) *BundleGenerator {
+	// Default to 1 log file for backward compatibility when 0 is provided
+	logFileCount := cfg.LogFileCount
+	if logFileCount == 0 {
+		logFileCount = 1
+	}
+
 	return &BundleGenerator{
 		anonymizer: anonymize.NewAnonymizer(anonymize.DefaultAddresses()),
 
@@ -196,6 +204,7 @@ func NewBundleGenerator(deps GeneratorDependencies, cfg BundleConfig) *BundleGen
 		anonymize:         cfg.Anonymize,
 		clientStatus:      cfg.ClientStatus,
 		includeSystemInfo: cfg.IncludeSystemInfo,
+		logFileCount:      logFileCount,
 	}
 }
 
@@ -561,32 +570,8 @@ func (g *BundleGenerator) addLogfile() error {
 		return fmt.Errorf("add client log file to zip: %w", err)
 	}
 
-	// add latest rotated log file
-	pattern := filepath.Join(logDir, "client-*.log.gz")
-	files, err := filepath.Glob(pattern)
-	if err != nil {
-		log.Warnf("failed to glob rotated logs: %v", err)
-	} else if len(files) > 0 {
-		// pick the file with the latest ModTime
-		sort.Slice(files, func(i, j int) bool {
-			fi, err := os.Stat(files[i])
-			if err != nil {
-				log.Warnf("failed to stat rotated log %s: %v", files[i], err)
-				return false
-			}
-			fj, err := os.Stat(files[j])
-			if err != nil {
-				log.Warnf("failed to stat rotated log %s: %v", files[j], err)
-				return false
-			}
-			return fi.ModTime().Before(fj.ModTime())
-		})
-		latest := files[len(files)-1]
-		name := filepath.Base(latest)
-		if err := g.addSingleLogFileGz(latest, name); err != nil {
-			log.Warnf("failed to add rotated log %s: %v", name, err)
-		}
-	}
+	// add rotated log files based on logFileCount
+	g.addRotatedLogFiles(logDir)
 
 	stdErrLogPath := filepath.Join(logDir, errorLogFile)
 	stdoutLogPath := filepath.Join(logDir, stdoutLogFile)
@@ -670,6 +655,52 @@ func (g *BundleGenerator) addSingleLogFileGz(logPath, targetName string) error {
 	return nil
 }
 
+// addRotatedLogFiles adds rotated log files to the bundle based on logFileCount
+func (g *BundleGenerator) addRotatedLogFiles(logDir string) {
+	if g.logFileCount == 0 {
+		return
+	}
+
+	pattern := filepath.Join(logDir, "client-*.log.gz")
+	files, err := filepath.Glob(pattern)
+	if err != nil {
+		log.Warnf("failed to glob rotated logs: %v", err)
+		return
+	}
+
+	if len(files) == 0 {
+		return
+	}
+
+	// sort files by modification time (newest first)
+	sort.Slice(files, func(i, j int) bool {
+		fi, err := os.Stat(files[i])
+		if err != nil {
+			log.Warnf("failed to stat rotated log %s: %v", files[i], err)
+			return false
+		}
+		fj, err := os.Stat(files[j])
+		if err != nil {
+			log.Warnf("failed to stat rotated log %s: %v", files[j], err)
+			return false
+		}
+		return fi.ModTime().After(fj.ModTime())
+	})
+
+	// include up to logFileCount rotated files
+	maxFiles := int(g.logFileCount)
+	if maxFiles > len(files) {
+		maxFiles = len(files)
+	}
+
+	for i := 0; i < maxFiles; i++ {
+		name := filepath.Base(files[i])
+		if err := g.addSingleLogFileGz(files[i], name); err != nil {
+			log.Warnf("failed to add rotated log %s: %v", name, err)
+		}
+	}
+}
+
 func (g *BundleGenerator) addFileToZip(reader io.Reader, filename string) error {
 	header := &zip.FileHeader{
 		Name:     filename,

client/internal/dns/handler_chain.go

@@ -11,9 +11,10 @@ import (
 )
 
 const (
-	PriorityDNSRoute    = 100
-	PriorityMatchDomain = 50
-	PriorityDefault     = 1
+	PriorityLocal    = 100
+	PriorityDNSRoute = 75
+	PriorityUpstream = 50
+	PriorityDefault  = 1
 )
 
 type SubdomainMatcher interface {

client/internal/dns/handler_chain_test.go

@@ -22,7 +22,7 @@ func TestHandlerChain_ServeDNS_Priorities(t *testing.T) {
 
 	// Setup handlers with different priorities
 	chain.AddHandler("example.com.", defaultHandler, nbdns.PriorityDefault)
-	chain.AddHandler("example.com.", matchDomainHandler, nbdns.PriorityMatchDomain)
+	chain.AddHandler("example.com.", matchDomainHandler, nbdns.PriorityUpstream)
 	chain.AddHandler("example.com.", dnsRouteHandler, nbdns.PriorityDNSRoute)
 
 	// Create test request
@@ -200,7 +200,7 @@ func TestHandlerChain_ServeDNS_OverlappingDomains(t *testing.T) {
 				priority int
 			}{
 				{pattern: "*.example.com.", priority: nbdns.PriorityDefault},
-				{pattern: "*.example.com.", priority: nbdns.PriorityMatchDomain},
+				{pattern: "*.example.com.", priority: nbdns.PriorityUpstream},
 				{pattern: "*.example.com.", priority: nbdns.PriorityDNSRoute},
 			},
 			queryDomain:     "test.example.com.",
@@ -214,7 +214,7 @@ func TestHandlerChain_ServeDNS_OverlappingDomains(t *testing.T) {
 				priority int
 			}{
 				{pattern: "*.example.com.", priority: nbdns.PriorityDefault},
-				{pattern: "test.example.com.", priority: nbdns.PriorityMatchDomain},
+				{pattern: "test.example.com.", priority: nbdns.PriorityUpstream},
 				{pattern: "*.test.example.com.", priority: nbdns.PriorityDNSRoute},
 			},
 			queryDomain:     "sub.test.example.com.",
@@ -281,7 +281,7 @@ func TestHandlerChain_ServeDNS_ChainContinuation(t *testing.T) {
 
 	// Add handlers in priority order
 	chain.AddHandler("example.com.", handler1, nbdns.PriorityDNSRoute)
-	chain.AddHandler("example.com.", handler2, nbdns.PriorityMatchDomain)
+	chain.AddHandler("example.com.", handler2, nbdns.PriorityUpstream)
 	chain.AddHandler("example.com.", handler3, nbdns.PriorityDefault)
 
 	// Create test request
@@ -344,13 +344,13 @@ func TestHandlerChain_PriorityDeregistration(t *testing.T) {
 				priority int
 			}{
 				{"add", "example.com.", nbdns.PriorityDNSRoute},
-				{"add", "example.com.", nbdns.PriorityMatchDomain},
+				{"add", "example.com.", nbdns.PriorityUpstream},
 				{"remove", "example.com.", nbdns.PriorityDNSRoute},
 			},
 			query: "example.com.",
 			expectedCalls: map[int]bool{
-				nbdns.PriorityDNSRoute:    false,
-				nbdns.PriorityMatchDomain: true,
+				nbdns.PriorityDNSRoute: false,
+				nbdns.PriorityUpstream: true,
 			},
 		},
 		{
@@ -361,13 +361,13 @@ func TestHandlerChain_PriorityDeregistration(t *testing.T) {
 				priority int
 			}{
 				{"add", "example.com.", nbdns.PriorityDNSRoute},
-				{"add", "example.com.", nbdns.PriorityMatchDomain},
-				{"remove", "example.com.", nbdns.PriorityMatchDomain},
+				{"add", "example.com.", nbdns.PriorityUpstream},
+				{"remove", "example.com.", nbdns.PriorityUpstream},
 			},
 			query: "example.com.",
 			expectedCalls: map[int]bool{
-				nbdns.PriorityDNSRoute:    true,
-				nbdns.PriorityMatchDomain: false,
+				nbdns.PriorityDNSRoute: true,
+				nbdns.PriorityUpstream: false,
 			},
 		},
 		{
@@ -378,16 +378,16 @@ func TestHandlerChain_PriorityDeregistration(t *testing.T) {
 				priority int
 			}{
 				{"add", "example.com.", nbdns.PriorityDNSRoute},
-				{"add", "example.com.", nbdns.PriorityMatchDomain},
+				{"add", "example.com.", nbdns.PriorityUpstream},
 				{"add", "example.com.", nbdns.PriorityDefault},
 				{"remove", "example.com.", nbdns.PriorityDNSRoute},
-				{"remove", "example.com.", nbdns.PriorityMatchDomain},
+				{"remove", "example.com.", nbdns.PriorityUpstream},
 			},
 			query: "example.com.",
 			expectedCalls: map[int]bool{
-				nbdns.PriorityDNSRoute:    false,
-				nbdns.PriorityMatchDomain: false,
-				nbdns.PriorityDefault:     true,
+				nbdns.PriorityDNSRoute: false,
+				nbdns.PriorityUpstream: false,
+				nbdns.PriorityDefault:  true,
 			},
 		},
 	}
@@ -454,7 +454,7 @@ func TestHandlerChain_MultiPriorityHandling(t *testing.T) {
 	// Add handlers in mixed order
 	chain.AddHandler(testDomain, defaultHandler, nbdns.PriorityDefault)
 	chain.AddHandler(testDomain, routeHandler, nbdns.PriorityDNSRoute)
-	chain.AddHandler(testDomain, matchHandler, nbdns.PriorityMatchDomain)
+	chain.AddHandler(testDomain, matchHandler, nbdns.PriorityUpstream)
 
 	// Test 1: Initial state
 	w1 := &nbdns.ResponseWriterChain{ResponseWriter: &test.MockResponseWriter{}}
@@ -490,7 +490,7 @@ func TestHandlerChain_MultiPriorityHandling(t *testing.T) {
 	defaultHandler.Calls = nil
 
 	// Test 3: Remove middle priority handler
-	chain.RemoveHandler(testDomain, nbdns.PriorityMatchDomain)
+	chain.RemoveHandler(testDomain, nbdns.PriorityUpstream)
 
 	w3 := &nbdns.ResponseWriterChain{ResponseWriter: &test.MockResponseWriter{}}
 	// Now lowest priority handler (defaultHandler) should be called
@@ -607,7 +607,7 @@ func TestHandlerChain_CaseSensitivity(t *testing.T) {
 				shouldMatch bool
 			}{
 				{"EXAMPLE.COM.", nbdns.PriorityDefault, false, false},
-				{"example.com.", nbdns.PriorityMatchDomain, false, false},
+				{"example.com.", nbdns.PriorityUpstream, false, false},
 				{"Example.Com.", nbdns.PriorityDNSRoute, false, true},
 			},
 			query:         "example.com.",
@@ -702,8 +702,8 @@ func TestHandlerChain_DomainSpecificityOrdering(t *testing.T) {
 				priority  int
 				subdomain bool
 			}{
-				{"add", "example.com.", nbdns.PriorityMatchDomain, true},
-				{"add", "sub.example.com.", nbdns.PriorityMatchDomain, false},
+				{"add", "example.com.", nbdns.PriorityUpstream, true},
+				{"add", "sub.example.com.", nbdns.PriorityUpstream, false},
 			},
 			query:         "sub.example.com.",
 			expectedMatch: "sub.example.com.",
@@ -717,8 +717,8 @@ func TestHandlerChain_DomainSpecificityOrdering(t *testing.T) {
 				priority  int
 				subdomain bool
 			}{
-				{"add", "example.com.", nbdns.PriorityMatchDomain, true},
-				{"add", "sub.example.com.", nbdns.PriorityMatchDomain, true},
+				{"add", "example.com.", nbdns.PriorityUpstream, true},
+				{"add", "sub.example.com.", nbdns.PriorityUpstream, true},
 			},
 			query:         "sub.example.com.",
 			expectedMatch: "sub.example.com.",
@@ -732,10 +732,10 @@ func TestHandlerChain_DomainSpecificityOrdering(t *testing.T) {
 				priority  int
 				subdomain bool
 			}{
-				{"add", "example.com.", nbdns.PriorityMatchDomain, true},
-				{"add", "sub.example.com.", nbdns.PriorityMatchDomain, true},
-				{"add", "test.sub.example.com.", nbdns.PriorityMatchDomain, false},
-				{"remove", "test.sub.example.com.", nbdns.PriorityMatchDomain, false},
+				{"add", "example.com.", nbdns.PriorityUpstream, true},
+				{"add", "sub.example.com.", nbdns.PriorityUpstream, true},
+				{"add", "test.sub.example.com.", nbdns.PriorityUpstream, false},
+				{"remove", "test.sub.example.com.", nbdns.PriorityUpstream, false},
 			},
 			query:         "test.sub.example.com.",
 			expectedMatch: "sub.example.com.",
@@ -749,7 +749,7 @@ func TestHandlerChain_DomainSpecificityOrdering(t *testing.T) {
 				priority  int
 				subdomain bool
 			}{
-				{"add", "sub.example.com.", nbdns.PriorityMatchDomain, false},
+				{"add", "sub.example.com.", nbdns.PriorityUpstream, false},
 				{"add", "example.com.", nbdns.PriorityDNSRoute, true},
 			},
 			query:         "sub.example.com.",
@@ -764,9 +764,9 @@ func TestHandlerChain_DomainSpecificityOrdering(t *testing.T) {
 				priority  int
 				subdomain bool
 			}{
-				{"add", "example.com.", nbdns.PriorityMatchDomain, true},
-				{"add", "other.example.com.", nbdns.PriorityMatchDomain, true},
-				{"add", "sub.example.com.", nbdns.PriorityMatchDomain, false},
+				{"add", "example.com.", nbdns.PriorityUpstream, true},
+				{"add", "other.example.com.", nbdns.PriorityUpstream, true},
+				{"add", "sub.example.com.", nbdns.PriorityUpstream, false},
 			},
 			query:         "sub.example.com.",
 			expectedMatch: "sub.example.com.",

client/internal/dns/server.go

@@ -527,7 +527,7 @@ func (s *DefaultServer) buildLocalHandlerUpdate(customZones []nbdns.CustomZone)
 		muxUpdates = append(muxUpdates, handlerWrapper{
 			domain:   customZone.Domain,
 			handler:  s.localResolver,
-			priority: PriorityMatchDomain,
+			priority: PriorityLocal,
 		})
 
 		for _, record := range customZone.Records {
@@ -566,7 +566,7 @@ func (s *DefaultServer) buildUpstreamHandlerUpdate(nameServerGroups []*nbdns.Nam
 	groupedNS := groupNSGroupsByDomain(nameServerGroups)
 
 	for _, domainGroup := range groupedNS {
-		basePriority := PriorityMatchDomain
+		basePriority := PriorityUpstream
 		if domainGroup.domain == nbdns.RootZone {
 			basePriority = PriorityDefault
 		}
@@ -588,10 +588,14 @@ func (s *DefaultServer) createHandlersForDomainGroup(domainGroup nsGroupsByDomai
 		// Decrement priority by handler index (0, 1, 2, ...) to avoid conflicts
 		priority := basePriority - i
 
-		// Check if we're about to overlap with the next priority tier
-		if basePriority == PriorityMatchDomain && priority <= PriorityDefault {
+		// Check if we're about to overlap with the next priority tier.
+		// This boundary check ensures that the priority of upstream handlers does not conflict
+		// with the default priority tier. By decrementing the priority for each handler, we avoid
+		// overlaps, but if the calculated priority falls into the default tier, we skip the remaining
+		// handlers to maintain the integrity of the priority system.
+		if basePriority == PriorityUpstream && priority <= PriorityDefault {
 			log.Warnf("too many handlers for domain=%s, would overlap with default priority tier (diff=%d). Skipping remaining handlers",
-				domainGroup.domain, PriorityMatchDomain-PriorityDefault)
+				domainGroup.domain, PriorityUpstream-PriorityDefault)
 			break
 		}
 

client/internal/dns/server_test.go

@@ -164,12 +164,12 @@ func TestUpdateDNSServer(t *testing.T) {
 				generateDummyHandler("netbird.io", nameServers).ID(): handlerWrapper{
 					domain:   "netbird.io",
 					handler:  dummyHandler,
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 				dummyHandler.ID(): handlerWrapper{
 					domain:   "netbird.cloud",
 					handler:  dummyHandler,
-					priority: PriorityMatchDomain,
+					priority: PriorityLocal,
 				},
 				generateDummyHandler(".", nameServers).ID(): handlerWrapper{
 					domain:   nbdns.RootZone,
@@ -186,7 +186,7 @@ func TestUpdateDNSServer(t *testing.T) {
 				generateDummyHandler(zoneRecords[0].Name, nameServers).ID(): handlerWrapper{
 					domain:   "netbird.cloud",
 					handler:  dummyHandler,
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 			},
 			initSerial:  0,
@@ -210,12 +210,12 @@ func TestUpdateDNSServer(t *testing.T) {
 				generateDummyHandler("netbird.io", nameServers).ID(): handlerWrapper{
 					domain:   "netbird.io",
 					handler:  dummyHandler,
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 				"local-resolver": handlerWrapper{
 					domain:   "netbird.cloud",
 					handler:  dummyHandler,
-					priority: PriorityMatchDomain,
+					priority: PriorityLocal,
 				},
 			},
 			expectedLocalQs: []dns.Question{{Name: zoneRecords[0].Name, Qtype: 1, Qclass: 1}},
@@ -305,7 +305,7 @@ func TestUpdateDNSServer(t *testing.T) {
 				generateDummyHandler(zoneRecords[0].Name, nameServers).ID(): handlerWrapper{
 					domain:   zoneRecords[0].Name,
 					handler:  dummyHandler,
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 			},
 			initSerial:          0,
@@ -321,7 +321,7 @@ func TestUpdateDNSServer(t *testing.T) {
 				generateDummyHandler(zoneRecords[0].Name, nameServers).ID(): handlerWrapper{
 					domain:   zoneRecords[0].Name,
 					handler:  dummyHandler,
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 			},
 			initSerial:          0,
@@ -464,7 +464,7 @@ func TestDNSFakeResolverHandleUpdates(t *testing.T) {
 	defer ctrl.Finish()
 
 	packetfilter := pfmock.NewMockPacketFilter(ctrl)
-	packetfilter.EXPECT().DropOutgoing(gomock.Any(), gomock.Any()).AnyTimes()
+	packetfilter.EXPECT().FilterOutbound(gomock.Any(), gomock.Any()).AnyTimes()
 	packetfilter.EXPECT().AddUDPPacketHook(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any())
 	packetfilter.EXPECT().RemovePacketHook(gomock.Any())
 
@@ -495,7 +495,7 @@ func TestDNSFakeResolverHandleUpdates(t *testing.T) {
 		"id1": handlerWrapper{
 			domain:   zoneRecords[0].Name,
 			handler:  &local.Resolver{},
-			priority: PriorityMatchDomain,
+			priority: PriorityUpstream,
 		},
 	}
 	//dnsServer.localResolver.RegisteredMap = local.RegistrationMap{local.BuildRecordKey("netbird.cloud", dns.ClassINET, dns.TypeA): struct{}{}}
@@ -978,7 +978,7 @@ func TestHandlerChain_DomainPriorities(t *testing.T) {
 	}
 
 	chain.AddHandler("example.com.", dnsRouteHandler, PriorityDNSRoute)
-	chain.AddHandler("example.com.", upstreamHandler, PriorityMatchDomain)
+	chain.AddHandler("example.com.", upstreamHandler, PriorityUpstream)
 
 	testCases := []struct {
 		name            string
@@ -1059,14 +1059,14 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 			handler: &mockHandler{
 				Id: "upstream-group1",
 			},
-			priority: PriorityMatchDomain,
+			priority: PriorityUpstream,
 		},
 		"upstream-group2": {
 			domain: "example.com",
 			handler: &mockHandler{
 				Id: "upstream-group2",
 			},
-			priority: PriorityMatchDomain - 1,
+			priority: PriorityUpstream - 1,
 		},
 	}
 
@@ -1093,21 +1093,21 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 			handler: &mockHandler{
 				Id: "upstream-group1",
 			},
-			priority: PriorityMatchDomain,
+			priority: PriorityUpstream,
 		},
 		"upstream-group2": {
 			domain: "example.com",
 			handler: &mockHandler{
 				Id: "upstream-group2",
 			},
-			priority: PriorityMatchDomain - 1,
+			priority: PriorityUpstream - 1,
 		},
 		"upstream-other": {
 			domain: "other.com",
 			handler: &mockHandler{
 				Id: "upstream-other",
 			},
-			priority: PriorityMatchDomain,
+			priority: PriorityUpstream,
 		},
 	}
 
@@ -1128,7 +1128,7 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 					handler: &mockHandler{
 						Id: "upstream-group2",
 					},
-					priority: PriorityMatchDomain - 1,
+					priority: PriorityUpstream - 1,
 				},
 			},
 			expectedHandlers: map[string]string{
@@ -1146,7 +1146,7 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 					handler: &mockHandler{
 						Id: "upstream-group1",
 					},
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 			},
 			expectedHandlers: map[string]string{
@@ -1164,7 +1164,7 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 					handler: &mockHandler{
 						Id: "upstream-group3",
 					},
-					priority: PriorityMatchDomain + 1,
+					priority: PriorityUpstream + 1,
 				},
 				// Keep existing groups with their original priorities
 				{
@@ -1172,14 +1172,14 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 					handler: &mockHandler{
 						Id: "upstream-group1",
 					},
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 				{
 					domain: "example.com",
 					handler: &mockHandler{
 						Id: "upstream-group2",
 					},
-					priority: PriorityMatchDomain - 1,
+					priority: PriorityUpstream - 1,
 				},
 			},
 			expectedHandlers: map[string]string{
@@ -1199,14 +1199,14 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 					handler: &mockHandler{
 						Id: "upstream-group1",
 					},
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 				{
 					domain: "example.com",
 					handler: &mockHandler{
 						Id: "upstream-group2",
 					},
-					priority: PriorityMatchDomain - 1,
+					priority: PriorityUpstream - 1,
 				},
 				// Add group3 with lowest priority
 				{
@@ -1214,7 +1214,7 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 					handler: &mockHandler{
 						Id: "upstream-group3",
 					},
-					priority: PriorityMatchDomain - 2,
+					priority: PriorityUpstream - 2,
 				},
 			},
 			expectedHandlers: map[string]string{
@@ -1335,14 +1335,14 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 					handler: &mockHandler{
 						Id: "upstream-group1",
 					},
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 				{
 					domain: "other.com",
 					handler: &mockHandler{
 						Id: "upstream-other",
 					},
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 			},
 			expectedHandlers: map[string]string{
@@ -1360,28 +1360,28 @@ func TestDefaultServer_UpdateMux(t *testing.T) {
 					handler: &mockHandler{
 						Id: "upstream-group1",
 					},
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 				{
 					domain: "example.com",
 					handler: &mockHandler{
 						Id: "upstream-group2",
 					},
-					priority: PriorityMatchDomain - 1,
+					priority: PriorityUpstream - 1,
 				},
 				{
 					domain: "other.com",
 					handler: &mockHandler{
 						Id: "upstream-other",
 					},
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 				{
 					domain: "new.com",
 					handler: &mockHandler{
 						Id: "upstream-new",
 					},
-					priority: PriorityMatchDomain,
+					priority: PriorityUpstream,
 				},
 			},
 			expectedHandlers: map[string]string{
@@ -1791,14 +1791,14 @@ func TestExtraDomainsRefCounting(t *testing.T) {
 
 	// Register domains from different handlers with same domain
 	server.RegisterHandler(domain.List{"*.shared.example.com"}, &MockHandler{}, PriorityDNSRoute)
-	server.RegisterHandler(domain.List{"shared.example.com."}, &MockHandler{}, PriorityMatchDomain)
+	server.RegisterHandler(domain.List{"shared.example.com."}, &MockHandler{}, PriorityUpstream)
 
 	// Verify refcount is 2
 	zoneKey := toZone("shared.example.com")
 	assert.Equal(t, 2, server.extraDomains[zoneKey], "Refcount should be 2 after registering same domain twice")
 
 	// Deregister one handler
-	server.DeregisterHandler(domain.List{"shared.example.com"}, PriorityMatchDomain)
+	server.DeregisterHandler(domain.List{"shared.example.com"}, PriorityUpstream)
 
 	// Verify refcount is 1
 	assert.Equal(t, 1, server.extraDomains[zoneKey], "Refcount should be 1 after deregistering one handler")
@@ -1925,7 +1925,7 @@ func TestDomainCaseHandling(t *testing.T) {
 	}
 
 	server.RegisterHandler(domain.List{"MIXED.example.com"}, &MockHandler{}, PriorityDefault)
-	server.RegisterHandler(domain.List{"mixed.EXAMPLE.com"}, &MockHandler{}, PriorityMatchDomain)
+	server.RegisterHandler(domain.List{"mixed.EXAMPLE.com"}, &MockHandler{}, PriorityUpstream)
 
 	assert.Equal(t, 1, len(server.extraDomains), "Case differences should be normalized")
 
@@ -1945,3 +1945,111 @@ func TestDomainCaseHandling(t *testing.T) {
 	assert.Contains(t, domains, "config.example.com.", "Mixed case domain should be normalized and pre.sent")
 	assert.Contains(t, domains, "mixed.example.com.", "Mixed case domain should be normalized and present")
 }
+
+func TestLocalResolverPriorityInServer(t *testing.T) {
+	server := &DefaultServer{
+		ctx:           context.Background(),
+		wgInterface:   &mocWGIface{},
+		handlerChain:  NewHandlerChain(),
+		localResolver: local.NewResolver(),
+		service:       &mockService{},
+		extraDomains:  make(map[domain.Domain]int),
+	}
+
+	config := nbdns.Config{
+		ServiceEnable: true,
+		CustomZones: []nbdns.CustomZone{
+			{
+				Domain: "local.example.com",
+				Records: []nbdns.SimpleRecord{
+					{
+						Name:  "test.local.example.com",
+						Type:  int(dns.TypeA),
+						Class: nbdns.DefaultClass,
+						TTL:   300,
+						RData: "192.168.1.100",
+					},
+				},
+			},
+		},
+		NameServerGroups: []*nbdns.NameServerGroup{
+			{
+				Domains: []string{"local.example.com"}, // Same domain as local records
+				NameServers: []nbdns.NameServer{
+					{
+						IP:     netip.MustParseAddr("8.8.8.8"),
+						NSType: nbdns.UDPNameServerType,
+						Port:   53,
+					},
+				},
+			},
+		},
+	}
+
+	localMuxUpdates, _, err := server.buildLocalHandlerUpdate(config.CustomZones)
+	assert.NoError(t, err)
+
+	upstreamMuxUpdates, err := server.buildUpstreamHandlerUpdate(config.NameServerGroups)
+	assert.NoError(t, err)
+
+	// Verify that local handler has higher priority than upstream for same domain
+	var localPriority, upstreamPriority int
+	localFound, upstreamFound := false, false
+
+	for _, update := range localMuxUpdates {
+		if update.domain == "local.example.com" {
+			localPriority = update.priority
+			localFound = true
+		}
+	}
+
+	for _, update := range upstreamMuxUpdates {
+		if update.domain == "local.example.com" {
+			upstreamPriority = update.priority
+			upstreamFound = true
+		}
+	}
+
+	assert.True(t, localFound, "Local handler should be found")
+	assert.True(t, upstreamFound, "Upstream handler should be found")
+	assert.Greater(t, localPriority, upstreamPriority,
+		"Local handler priority (%d) should be higher than upstream priority (%d)",
+		localPriority, upstreamPriority)
+	assert.Equal(t, PriorityLocal, localPriority, "Local handler should use PriorityLocal")
+	assert.Equal(t, PriorityUpstream, upstreamPriority, "Upstream handler should use PriorityUpstream")
+}
+
+func TestLocalResolverPriorityConstants(t *testing.T) {
+	// Test that priority constants are ordered correctly
+	assert.Greater(t, PriorityLocal, PriorityDNSRoute, "Local priority should be higher than DNS route")
+	assert.Greater(t, PriorityLocal, PriorityUpstream, "Local priority should be higher than upstream")
+	assert.Greater(t, PriorityUpstream, PriorityDefault, "Upstream priority should be higher than default")
+
+	// Test that local resolver uses the correct priority
+	server := &DefaultServer{
+		localResolver: local.NewResolver(),
+	}
+
+	config := nbdns.Config{
+		CustomZones: []nbdns.CustomZone{
+			{
+				Domain: "local.example.com",
+				Records: []nbdns.SimpleRecord{
+					{
+						Name:  "test.local.example.com",
+						Type:  int(dns.TypeA),
+						Class: nbdns.DefaultClass,
+						TTL:   300,
+						RData: "192.168.1.100",
+					},
+				},
+			},
+		},
+	}
+
+	localMuxUpdates, _, err := server.buildLocalHandlerUpdate(config.CustomZones)
+	assert.NoError(t, err)
+	assert.Len(t, localMuxUpdates, 1)
+	assert.Equal(t, PriorityLocal, localMuxUpdates[0].priority, "Local handler should use PriorityLocal")
+	assert.Equal(t, "local.example.com", localMuxUpdates[0].domain)
+}

client/internal/dns/upstream.go

@@ -2,6 +2,7 @@ package dns
 
 import (
 	"context"
+	"crypto/rand"
 	"crypto/sha256"
 	"encoding/hex"
 	"errors"
@@ -103,19 +104,21 @@ func (u *upstreamResolverBase) Stop() {
 
 // ServeDNS handles a DNS request
 func (u *upstreamResolverBase) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
+	requestID := GenerateRequestID()
+	logger := log.WithField("request_id", requestID)
 	var err error
 	defer func() {
 		u.checkUpstreamFails(err)
 	}()
 
-	log.Tracef("received upstream question: domain=%s type=%v class=%v", r.Question[0].Name, r.Question[0].Qtype, r.Question[0].Qclass)
+	logger.Tracef("received upstream question: domain=%s type=%v class=%v", r.Question[0].Name, r.Question[0].Qtype, r.Question[0].Qclass)
 	if r.Extra == nil {
 		r.MsgHdr.AuthenticatedData = true
 	}
 
 	select {
 	case <-u.ctx.Done():
-		log.Tracef("%s has been stopped", u)
+		logger.Tracef("%s has been stopped", u)
 		return
 	default:
 	}
@@ -132,35 +135,35 @@ func (u *upstreamResolverBase) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
 
 		if err != nil {
 			if errors.Is(err, context.DeadlineExceeded) || isTimeout(err) {
-				log.Warnf("upstream %s timed out for question domain=%s", upstream, r.Question[0].Name)
+				logger.Warnf("upstream %s timed out for question domain=%s", upstream, r.Question[0].Name)
 				continue
 			}
-			log.Warnf("failed to query upstream %s for question domain=%s: %s", upstream, r.Question[0].Name, err)
+			logger.Warnf("failed to query upstream %s for question domain=%s: %s", upstream, r.Question[0].Name, err)
 			continue
 		}
 
 		if rm == nil || !rm.Response {
-			log.Warnf("no response from upstream %s for question domain=%s", upstream, r.Question[0].Name)
+			logger.Warnf("no response from upstream %s for question domain=%s", upstream, r.Question[0].Name)
 			continue
 		}
 
 		u.successCount.Add(1)
-		log.Tracef("took %s to query the upstream %s for question domain=%s", t, upstream, r.Question[0].Name)
+		logger.Tracef("took %s to query the upstream %s for question domain=%s", t, upstream, r.Question[0].Name)
 
 		if err = w.WriteMsg(rm); err != nil {
-			log.Errorf("failed to write DNS response for question domain=%s: %s", r.Question[0].Name, err)
+			logger.Errorf("failed to write DNS response for question domain=%s: %s", r.Question[0].Name, err)
 		}
 		// count the fails only if they happen sequentially
 		u.failsCount.Store(0)
 		return
 	}
 	u.failsCount.Add(1)
-	log.Errorf("all queries to the %s failed for question domain=%s", u, r.Question[0].Name)
+	logger.Errorf("all queries to the %s failed for question domain=%s", u, r.Question[0].Name)
 
 	m := new(dns.Msg)
 	m.SetRcode(r, dns.RcodeServerFailure)
 	if err := w.WriteMsg(m); err != nil {
-		log.Errorf("failed to write error response for %s for question domain=%s: %s", u, r.Question[0].Name, err)
+		logger.Errorf("failed to write error response for %s for question domain=%s: %s", u, r.Question[0].Name, err)
 	}
 }
 
@@ -385,3 +388,13 @@ func ExchangeWithFallback(ctx context.Context, client *dns.Client, r *dns.Msg, u
 
 	return rm, t, nil
 }
+
+func GenerateRequestID() string {
+	bytes := make([]byte, 4)
+	_, err := rand.Read(bytes)
+	if err != nil {
+		log.Errorf("failed to generate request ID: %v", err)
+		return ""
+	}
+	return hex.EncodeToString(bytes)
+}

client/internal/dns/upstream_android.go

@@ -84,3 +84,10 @@ func (u *upstreamResolver) isLocalResolver(upstream string) bool {
 	}
 	return false
 }
+
+func GetClientPrivate(ip netip.Addr, interfaceName string, dialTimeout time.Duration) (*dns.Client, error) {
+	return &dns.Client{
+		Timeout: dialTimeout,
+		Net:     "udp",
+	}, nil
+}

client/internal/dns/upstream_general.go

@@ -36,3 +36,10 @@ func newUpstreamResolver(
 func (u *upstreamResolver) exchange(ctx context.Context, upstream string, r *dns.Msg) (rm *dns.Msg, t time.Duration, err error) {
 	return ExchangeWithFallback(ctx, &dns.Client{}, r, upstream)
 }
+
+func GetClientPrivate(ip netip.Addr, interfaceName string, dialTimeout time.Duration) (*dns.Client, error) {
+	return &dns.Client{
+		Timeout: dialTimeout,
+		Net:     "udp",
+	}, nil
+}

client/internal/dnsfwd/forwarder.go

@@ -18,14 +18,20 @@ import (
 	nberrors "github.com/netbirdio/netbird/client/errors"
 	firewall "github.com/netbirdio/netbird/client/firewall/manager"
 	"github.com/netbirdio/netbird/client/internal/peer"
-	nbdns "github.com/netbirdio/netbird/dns"
-	"github.com/netbirdio/netbird/management/domain"
 	"github.com/netbirdio/netbird/route"
 )
 
 const errResolveFailed = "failed to resolve query for domain=%s: %v"
 const upstreamTimeout = 15 * time.Second
 
+type resolver interface {
+	LookupNetIP(ctx context.Context, network, host string) ([]netip.Addr, error)
+}
+
+type firewaller interface {
+	UpdateSet(set firewall.Set, prefixes []netip.Prefix) error
+}
+
 type DNSForwarder struct {
 	listenAddress  string
 	ttl            uint32
@@ -38,16 +44,18 @@ type DNSForwarder struct {
 
 	mutex      sync.RWMutex
 	fwdEntries []*ForwarderEntry
-	firewall   firewall.Manager
+	firewall   firewaller
+	resolver   resolver
 }
 
-func NewDNSForwarder(listenAddress string, ttl uint32, firewall firewall.Manager, statusRecorder *peer.Status) *DNSForwarder {
+func NewDNSForwarder(listenAddress string, ttl uint32, firewall firewaller, statusRecorder *peer.Status) *DNSForwarder {
 	log.Debugf("creating DNS forwarder with listen_address=%s ttl=%d", listenAddress, ttl)
 	return &DNSForwarder{
 		listenAddress:  listenAddress,
 		ttl:            ttl,
 		firewall:       firewall,
 		statusRecorder: statusRecorder,
+		resolver:       net.DefaultResolver,
 	}
 }
 
@@ -57,14 +65,17 @@ func (f *DNSForwarder) Listen(entries []*ForwarderEntry) error {
 	// UDP server
 	mux := dns.NewServeMux()
 	f.mux = mux
+	mux.HandleFunc(".", f.handleDNSQueryUDP)
 	f.dnsServer = &dns.Server{
 		Addr:    f.listenAddress,
 		Net:     "udp",
 		Handler: mux,
 	}
+
 	// TCP server
 	tcpMux := dns.NewServeMux()
 	f.tcpMux = tcpMux
+	tcpMux.HandleFunc(".", f.handleDNSQueryTCP)
 	f.tcpServer = &dns.Server{
 		Addr:    f.listenAddress,
 		Net:     "tcp",
@@ -87,30 +98,13 @@ func (f *DNSForwarder) Listen(entries []*ForwarderEntry) error {
 	// return the first error we get (e.g. bind failure or shutdown)
 	return <-errCh
 }
+
 func (f *DNSForwarder) UpdateDomains(entries []*ForwarderEntry) {
 	f.mutex.Lock()
 	defer f.mutex.Unlock()
 
-	if f.mux == nil {
-		log.Debug("DNS mux is nil, skipping domain update")
-		f.fwdEntries = entries
-		return
-	}
-
-	oldDomains := filterDomains(f.fwdEntries)
-	for _, d := range oldDomains {
-		f.mux.HandleRemove(d.PunycodeString())
-		f.tcpMux.HandleRemove(d.PunycodeString())
-	}
-
-	newDomains := filterDomains(entries)
-	for _, d := range newDomains {
-		f.mux.HandleFunc(d.PunycodeString(), f.handleDNSQueryUDP)
-		f.tcpMux.HandleFunc(d.PunycodeString(), f.handleDNSQueryTCP)
-	}
-
 	f.fwdEntries = entries
-	log.Debugf("Updated domains from %v to %v", oldDomains, newDomains)
+	log.Debugf("Updated DNS forwarder with %d domains", len(entries))
 }
 
 func (f *DNSForwarder) Close(ctx context.Context) error {
@@ -157,22 +151,31 @@ func (f *DNSForwarder) handleDNSQuery(w dns.ResponseWriter, query *dns.Msg) *dns
 		return nil
 	}
 
+	mostSpecificResId, matchingEntries := f.getMatchingEntries(strings.TrimSuffix(domain, "."))
+	// query doesn't match any configured domain
+	if mostSpecificResId == "" {
+		resp.Rcode = dns.RcodeRefused
+		if err := w.WriteMsg(resp); err != nil {
+			log.Errorf("failed to write DNS response: %v", err)
+		}
+		return nil
+	}
+
 	ctx, cancel := context.WithTimeout(context.Background(), upstreamTimeout)
 	defer cancel()
-	ips, err := net.DefaultResolver.LookupNetIP(ctx, network, domain)
+	ips, err := f.resolver.LookupNetIP(ctx, network, domain)
 	if err != nil {
 		f.handleDNSError(w, query, resp, domain, err)
 		return nil
 	}
 
-	f.updateInternalState(domain, ips)
+	f.updateInternalState(ips, mostSpecificResId, matchingEntries)
 	f.addIPsToResponse(resp, domain, ips)
 
 	return resp
 }
 
 func (f *DNSForwarder) handleDNSQueryUDP(w dns.ResponseWriter, query *dns.Msg) {
-
 	resp := f.handleDNSQuery(w, query)
 	if resp == nil {
 		return
@@ -206,9 +209,8 @@ func (f *DNSForwarder) handleDNSQueryTCP(w dns.ResponseWriter, query *dns.Msg) {
 	}
 }
 
-func (f *DNSForwarder) updateInternalState(domain string, ips []netip.Addr) {
+func (f *DNSForwarder) updateInternalState(ips []netip.Addr, mostSpecificResId route.ResID, matchingEntries []*ForwarderEntry) {
 	var prefixes []netip.Prefix
-	mostSpecificResId, matchingEntries := f.getMatchingEntries(strings.TrimSuffix(domain, "."))
 	if mostSpecificResId != "" {
 		for _, ip := range ips {
 			var prefix netip.Prefix
@@ -339,16 +341,3 @@ func (f *DNSForwarder) getMatchingEntries(domain string) (route.ResID, []*Forwar
 
 	return selectedResId, matches
 }
-
-// filterDomains returns a list of normalized domains
-func filterDomains(entries []*ForwarderEntry) domain.List {
-	newDomains := make(domain.List, 0, len(entries))
-	for _, d := range entries {
-		if d.Domain == "" {
-			log.Warn("empty domain in DNS forwarder")
-			continue
-		}
-		newDomains = append(newDomains, domain.Domain(nbdns.NormalizeZone(d.Domain.PunycodeString())))
-	}
-	return newDomains
-}

client/internal/dnsfwd/forwarder_test.go

@@ -1,11 +1,21 @@
 package dnsfwd
 
 import (
+	"context"
+	"fmt"
+	"net/netip"
+	"strings"
 	"testing"
+	"time"
 
+	"github.com/miekg/dns"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
 	"github.com/stretchr/testify/require"
 
+	firewall "github.com/netbirdio/netbird/client/firewall/manager"
+	"github.com/netbirdio/netbird/client/internal/dns/test"
+	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/management/domain"
 	"github.com/netbirdio/netbird/route"
 )
@@ -13,7 +23,7 @@ import (
 func Test_getMatchingEntries(t *testing.T) {
 	testCases := []struct {
 		name           string
-		storedMappings map[string]route.ResID // key: domain pattern, value: resId
+		storedMappings map[string]route.ResID
 		queryDomain    string
 		expectedResId  route.ResID
 	}{
@@ -44,7 +54,7 @@ func Test_getMatchingEntries(t *testing.T) {
 		{
 			name:           "Wildcard pattern does not match different domain",
 			storedMappings: map[string]route.ResID{"*.example.com": "res4"},
-			queryDomain:    "foo.notexample.com",
+			queryDomain:    "foo.example.org",
 			expectedResId:  "",
 		},
 		{
@@ -101,3 +111,619 @@ func Test_getMatchingEntries(t *testing.T) {
 		})
 	}
 }
+
+type MockFirewall struct {
+	mock.Mock
+}
+
+func (m *MockFirewall) UpdateSet(set firewall.Set, prefixes []netip.Prefix) error {
+	args := m.Called(set, prefixes)
+	return args.Error(0)
+}
+
+type MockResolver struct {
+	mock.Mock
+}
+
+func (m *MockResolver) LookupNetIP(ctx context.Context, network, host string) ([]netip.Addr, error) {
+	args := m.Called(ctx, network, host)
+	return args.Get(0).([]netip.Addr), args.Error(1)
+}
+
+func TestDNSForwarder_SubdomainAccessLogic(t *testing.T) {
+	tests := []struct {
+		name             string
+		configuredDomain string
+		queryDomain      string
+		shouldMatch      bool
+		expectedResID    route.ResID
+		description      string
+	}{
+		{
+			name:             "exact domain match should be allowed",
+			configuredDomain: "example.com",
+			queryDomain:      "example.com",
+			shouldMatch:      true,
+			expectedResID:    "test-res-id",
+			description:      "Direct match to configured domain should work",
+		},
+		{
+			name:             "subdomain access should be restricted",
+			configuredDomain: "example.com",
+			queryDomain:      "mail.example.com",
+			shouldMatch:      false,
+			expectedResID:    "",
+			description:      "Subdomain should not be accessible unless explicitly configured",
+		},
+		{
+			name:             "wildcard should allow subdomains",
+			configuredDomain: "*.example.com",
+			queryDomain:      "mail.example.com",
+			shouldMatch:      true,
+			expectedResID:    "test-res-id",
+			description:      "Wildcard domains should allow subdomain access",
+		},
+		{
+			name:             "wildcard should allow base domain",
+			configuredDomain: "*.example.com",
+			queryDomain:      "example.com",
+			shouldMatch:      true,
+			expectedResID:    "test-res-id",
+			description:      "Wildcard should also match the base domain",
+		},
+		{
+			name:             "deep subdomain should be restricted",
+			configuredDomain: "example.com",
+			queryDomain:      "deep.mail.example.com",
+			shouldMatch:      false,
+			expectedResID:    "",
+			description:      "Deep subdomains should not be accessible",
+		},
+		{
+			name:             "wildcard allows deep subdomains",
+			configuredDomain: "*.example.com",
+			queryDomain:      "deep.mail.example.com",
+			shouldMatch:      true,
+			expectedResID:    "test-res-id",
+			description:      "Wildcard should allow deep subdomains",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			forwarder := &DNSForwarder{}
+
+			d, err := domain.FromString(tt.configuredDomain)
+			require.NoError(t, err)
+
+			entries := []*ForwarderEntry{
+				{
+					Domain: d,
+					ResID:  "test-res-id",
+				},
+			}
+
+			forwarder.UpdateDomains(entries)
+
+			resID, matchingEntries := forwarder.getMatchingEntries(tt.queryDomain)
+
+			if tt.shouldMatch {
+				assert.Equal(t, tt.expectedResID, resID, "Expected matching ResID")
+				assert.NotEmpty(t, matchingEntries, "Expected matching entries")
+				t.Logf("✓ Domain %s correctly matches pattern %s", tt.queryDomain, tt.configuredDomain)
+			} else {
+				assert.Equal(t, tt.expectedResID, resID, "Expected no ResID match")
+				assert.Empty(t, matchingEntries, "Expected no matching entries")
+				t.Logf("✓ Domain %s correctly does NOT match pattern %s", tt.queryDomain, tt.configuredDomain)
+			}
+		})
+	}
+}
+
+func TestDNSForwarder_UnauthorizedDomainAccess(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping integration test in short mode")
+	}
+
+	tests := []struct {
+		name             string
+		configuredDomain string
+		queryDomain      string
+		shouldResolve    bool
+		description      string
+	}{
+		{
+			name:             "configured exact domain resolves",
+			configuredDomain: "example.com",
+			queryDomain:      "example.com",
+			shouldResolve:    true,
+			description:      "Exact match should resolve",
+		},
+		{
+			name:             "unauthorized subdomain blocked",
+			configuredDomain: "example.com",
+			queryDomain:      "mail.example.com",
+			shouldResolve:    false,
+			description:      "Subdomain should be blocked without wildcard",
+		},
+		{
+			name:             "wildcard allows subdomain",
+			configuredDomain: "*.example.com",
+			queryDomain:      "mail.example.com",
+			shouldResolve:    true,
+			description:      "Wildcard should allow subdomain",
+		},
+		{
+			name:             "wildcard allows base domain",
+			configuredDomain: "*.example.com",
+			queryDomain:      "example.com",
+			shouldResolve:    true,
+			description:      "Wildcard should allow base domain",
+		},
+		{
+			name:             "unrelated domain blocked",
+			configuredDomain: "example.com",
+			queryDomain:      "example.org",
+			shouldResolve:    false,
+			description:      "Unrelated domain should be blocked",
+		},
+		{
+			name:             "deep subdomain blocked",
+			configuredDomain: "example.com",
+			queryDomain:      "deep.mail.example.com",
+			shouldResolve:    false,
+			description:      "Deep subdomain should be blocked",
+		},
+		{
+			name:             "wildcard allows deep subdomain",
+			configuredDomain: "*.example.com",
+			queryDomain:      "deep.mail.example.com",
+			shouldResolve:    true,
+			description:      "Wildcard should allow deep subdomain",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockFirewall := &MockFirewall{}
+			mockResolver := &MockResolver{}
+
+			if tt.shouldResolve {
+				mockFirewall.On("UpdateSet", mock.AnythingOfType("manager.Set"), mock.AnythingOfType("[]netip.Prefix")).Return(nil)
+
+				// Mock successful DNS resolution
+				fakeIP := netip.MustParseAddr("1.2.3.4")
+				mockResolver.On("LookupNetIP", mock.Anything, "ip4", dns.Fqdn(tt.queryDomain)).Return([]netip.Addr{fakeIP}, nil)
+			}
+
+			forwarder := NewDNSForwarder("127.0.0.1:0", 300, mockFirewall, &peer.Status{})
+			forwarder.resolver = mockResolver
+
+			d, err := domain.FromString(tt.configuredDomain)
+			require.NoError(t, err)
+
+			entries := []*ForwarderEntry{
+				{
+					Domain: d,
+					ResID:  "test-res-id",
+					Set:    firewall.NewDomainSet([]domain.Domain{d}),
+				},
+			}
+
+			forwarder.UpdateDomains(entries)
+
+			query := &dns.Msg{}
+			query.SetQuestion(dns.Fqdn(tt.queryDomain), dns.TypeA)
+
+			mockWriter := &test.MockResponseWriter{}
+			resp := forwarder.handleDNSQuery(mockWriter, query)
+
+			if tt.shouldResolve {
+				require.NotNil(t, resp, "Expected response for authorized domain")
+				require.Equal(t, dns.RcodeSuccess, resp.Rcode, "Expected successful response")
+				assert.NotEmpty(t, resp.Answer, "Expected DNS answer records")
+
+				time.Sleep(10 * time.Millisecond)
+				mockFirewall.AssertExpectations(t)
+				mockResolver.AssertExpectations(t)
+			} else {
+				if resp != nil {
+					assert.True(t, len(resp.Answer) == 0 || resp.Rcode != dns.RcodeSuccess,
+						"Unauthorized domain should not return successful answers")
+				}
+				mockFirewall.AssertNotCalled(t, "UpdateSet")
+				mockResolver.AssertNotCalled(t, "LookupNetIP")
+			}
+		})
+	}
+}
+
+func TestDNSForwarder_FirewallSetUpdates(t *testing.T) {
+	tests := []struct {
+		name              string
+		configuredDomains []string
+		query             string
+		mockIP            string
+		shouldResolve     bool
+		expectedSetCount  int // How many sets should be updated
+		description       string
+	}{
+		{
+			name:              "exact domain gets firewall update",
+			configuredDomains: []string{"example.com"},
+			query:             "example.com",
+			mockIP:            "1.1.1.1",
+			shouldResolve:     true,
+			expectedSetCount:  1,
+			description:       "Single exact match updates one set",
+		},
+		{
+			name:              "wildcard domain gets firewall update",
+			configuredDomains: []string{"*.example.com"},
+			query:             "mail.example.com",
+			mockIP:            "1.1.1.2",
+			shouldResolve:     true,
+			expectedSetCount:  1,
+			description:       "Wildcard match updates one set",
+		},
+		{
+			name:              "overlapping exact and wildcard both get updates",
+			configuredDomains: []string{"*.example.com", "mail.example.com"},
+			query:             "mail.example.com",
+			mockIP:            "1.1.1.3",
+			shouldResolve:     true,
+			expectedSetCount:  2,
+			description:       "Both exact and wildcard sets should be updated",
+		},
+		{
+			name:              "unauthorized domain gets no firewall update",
+			configuredDomains: []string{"example.com"},
+			query:             "mail.example.com",
+			mockIP:            "1.1.1.4",
+			shouldResolve:     false,
+			expectedSetCount:  0,
+			description:       "No firewall update for unauthorized domains",
+		},
+		{
+			name:              "multiple wildcards matching get all updated",
+			configuredDomains: []string{"*.example.com", "*.sub.example.com"},
+			query:             "test.sub.example.com",
+			mockIP:            "1.1.1.5",
+			shouldResolve:     true,
+			expectedSetCount:  2,
+			description:       "All matching wildcard sets should be updated",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockFirewall := &MockFirewall{}
+			mockResolver := &MockResolver{}
+
+			// Set up forwarder
+			forwarder := NewDNSForwarder("127.0.0.1:0", 300, mockFirewall, &peer.Status{})
+			forwarder.resolver = mockResolver
+
+			// Create entries and track sets
+			var entries []*ForwarderEntry
+			sets := make([]firewall.Set, 0)
+
+			for i, configDomain := range tt.configuredDomains {
+				d, err := domain.FromString(configDomain)
+				require.NoError(t, err)
+
+				set := firewall.NewDomainSet([]domain.Domain{d})
+				sets = append(sets, set)
+
+				entries = append(entries, &ForwarderEntry{
+					Domain: d,
+					ResID:  route.ResID(fmt.Sprintf("res-%d", i)),
+					Set:    set,
+				})
+			}
+
+			forwarder.UpdateDomains(entries)
+
+			// Set up mocks
+			if tt.shouldResolve {
+				fakeIP := netip.MustParseAddr(tt.mockIP)
+				mockResolver.On("LookupNetIP", mock.Anything, "ip4", dns.Fqdn(tt.query)).
+					Return([]netip.Addr{fakeIP}, nil).Once()
+
+				expectedPrefixes := []netip.Prefix{netip.PrefixFrom(fakeIP, 32)}
+
+				// Count how many sets should actually match
+				updateCount := 0
+				for i, entry := range entries {
+					domain := strings.ToLower(tt.query)
+					pattern := entry.Domain.PunycodeString()
+
+					matches := false
+					if strings.HasPrefix(pattern, "*.") {
+						baseDomain := strings.TrimPrefix(pattern, "*.")
+						if domain == baseDomain || strings.HasSuffix(domain, "."+baseDomain) {
+							matches = true
+						}
+					} else if domain == pattern {
+						matches = true
+					}
+
+					if matches {
+						mockFirewall.On("UpdateSet", sets[i], expectedPrefixes).Return(nil).Once()
+						updateCount++
+					}
+				}
+
+				assert.Equal(t, tt.expectedSetCount, updateCount,
+					"Expected %d sets to be updated, but mock expects %d",
+					tt.expectedSetCount, updateCount)
+			}
+
+			// Execute query
+			dnsQuery := &dns.Msg{}
+			dnsQuery.SetQuestion(dns.Fqdn(tt.query), dns.TypeA)
+
+			mockWriter := &test.MockResponseWriter{}
+			resp := forwarder.handleDNSQuery(mockWriter, dnsQuery)
+
+			// Verify response
+			if tt.shouldResolve {
+				require.NotNil(t, resp, "Expected response for authorized domain")
+				require.Equal(t, dns.RcodeSuccess, resp.Rcode)
+				require.NotEmpty(t, resp.Answer)
+			} else if resp != nil {
+				assert.True(t, resp.Rcode == dns.RcodeRefused || len(resp.Answer) == 0,
+					"Unauthorized domain should be refused or have no answers")
+			}
+
+			// Verify all mock expectations were met
+			mockFirewall.AssertExpectations(t)
+			mockResolver.AssertExpectations(t)
+		})
+	}
+}
+
+// Test to verify that multiple IPs for one domain result in all prefixes being sent together
+func TestDNSForwarder_MultipleIPsInSingleUpdate(t *testing.T) {
+	mockFirewall := &MockFirewall{}
+	mockResolver := &MockResolver{}
+
+	forwarder := NewDNSForwarder("127.0.0.1:0", 300, mockFirewall, &peer.Status{})
+	forwarder.resolver = mockResolver
+
+	// Configure a single domain
+	d, err := domain.FromString("example.com")
+	require.NoError(t, err)
+
+	set := firewall.NewDomainSet([]domain.Domain{d})
+	entries := []*ForwarderEntry{{
+		Domain: d,
+		ResID:  "test-res",
+		Set:    set,
+	}}
+
+	forwarder.UpdateDomains(entries)
+
+	// Mock resolver returns multiple IPs
+	ips := []netip.Addr{
+		netip.MustParseAddr("1.1.1.1"),
+		netip.MustParseAddr("1.1.1.2"),
+		netip.MustParseAddr("1.1.1.3"),
+	}
+	mockResolver.On("LookupNetIP", mock.Anything, "ip4", "example.com.").
+		Return(ips, nil).Once()
+
+	// Expect ONE UpdateSet call with ALL prefixes
+	expectedPrefixes := []netip.Prefix{
+		netip.PrefixFrom(ips[0], 32),
+		netip.PrefixFrom(ips[1], 32),
+		netip.PrefixFrom(ips[2], 32),
+	}
+	mockFirewall.On("UpdateSet", set, expectedPrefixes).Return(nil).Once()
+
+	// Execute query
+	query := &dns.Msg{}
+	query.SetQuestion("example.com.", dns.TypeA)
+
+	mockWriter := &test.MockResponseWriter{}
+	resp := forwarder.handleDNSQuery(mockWriter, query)
+
+	// Verify response contains all IPs
+	require.NotNil(t, resp)
+	require.Equal(t, dns.RcodeSuccess, resp.Rcode)
+	require.Len(t, resp.Answer, 3, "Should have 3 answer records")
+
+	// Verify mocks
+	mockFirewall.AssertExpectations(t)
+	mockResolver.AssertExpectations(t)
+}
+
+func TestDNSForwarder_ResponseCodes(t *testing.T) {
+	tests := []struct {
+		name         string
+		queryType    uint16
+		queryDomain  string
+		configured   string
+		expectedCode int
+		description  string
+	}{
+		{
+			name:         "unauthorized domain returns REFUSED",
+			queryType:    dns.TypeA,
+			queryDomain:  "evil.com",
+			configured:   "example.com",
+			expectedCode: dns.RcodeRefused,
+			description:  "RFC compliant REFUSED for unauthorized queries",
+		},
+		{
+			name:         "unsupported query type returns NOTIMP",
+			queryType:    dns.TypeMX,
+			queryDomain:  "example.com",
+			configured:   "example.com",
+			expectedCode: dns.RcodeNotImplemented,
+			description:  "RFC compliant NOTIMP for unsupported types",
+		},
+		{
+			name:         "CNAME query returns NOTIMP",
+			queryType:    dns.TypeCNAME,
+			queryDomain:  "example.com",
+			configured:   "example.com",
+			expectedCode: dns.RcodeNotImplemented,
+			description:  "CNAME queries not supported",
+		},
+		{
+			name:         "TXT query returns NOTIMP",
+			queryType:    dns.TypeTXT,
+			queryDomain:  "example.com",
+			configured:   "example.com",
+			expectedCode: dns.RcodeNotImplemented,
+			description:  "TXT queries not supported",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			forwarder := NewDNSForwarder("127.0.0.1:0", 300, nil, &peer.Status{})
+
+			d, err := domain.FromString(tt.configured)
+			require.NoError(t, err)
+
+			entries := []*ForwarderEntry{{Domain: d, ResID: "test-res"}}
+			forwarder.UpdateDomains(entries)
+
+			query := &dns.Msg{}
+			query.SetQuestion(dns.Fqdn(tt.queryDomain), tt.queryType)
+
+			// Capture the written response
+			var writtenResp *dns.Msg
+			mockWriter := &test.MockResponseWriter{
+				WriteMsgFunc: func(m *dns.Msg) error {
+					writtenResp = m
+					return nil
+				},
+			}
+
+			_ = forwarder.handleDNSQuery(mockWriter, query)
+
+			// Check the response written to the writer
+			require.NotNil(t, writtenResp, "Expected response to be written")
+			assert.Equal(t, tt.expectedCode, writtenResp.Rcode, tt.description)
+		})
+	}
+}
+
+func TestDNSForwarder_TCPTruncation(t *testing.T) {
+	// Test that large UDP responses are truncated with TC bit set
+	mockResolver := &MockResolver{}
+	forwarder := NewDNSForwarder("127.0.0.1:0", 300, nil, &peer.Status{})
+	forwarder.resolver = mockResolver
+
+	d, _ := domain.FromString("example.com")
+	entries := []*ForwarderEntry{{Domain: d, ResID: "test-res"}}
+	forwarder.UpdateDomains(entries)
+
+	// Mock many IPs to create a large response
+	var manyIPs []netip.Addr
+	for i := 0; i < 100; i++ {
+		manyIPs = append(manyIPs, netip.MustParseAddr(fmt.Sprintf("1.1.1.%d", i%256)))
+	}
+	mockResolver.On("LookupNetIP", mock.Anything, "ip4", "example.com.").Return(manyIPs, nil)
+
+	// Query without EDNS0
+	query := &dns.Msg{}
+	query.SetQuestion("example.com.", dns.TypeA)
+
+	var writtenResp *dns.Msg
+	mockWriter := &test.MockResponseWriter{
+		WriteMsgFunc: func(m *dns.Msg) error {
+			writtenResp = m
+			return nil
+		},
+	}
+	forwarder.handleDNSQueryUDP(mockWriter, query)
+
+	require.NotNil(t, writtenResp)
+	assert.True(t, writtenResp.Truncated, "Large response should be truncated")
+	assert.LessOrEqual(t, writtenResp.Len(), dns.MinMsgSize, "Response should fit in minimum UDP size")
+}
+
+func TestDNSForwarder_MultipleOverlappingPatterns(t *testing.T) {
+	// Test complex overlapping pattern scenarios
+	mockFirewall := &MockFirewall{}
+	mockResolver := &MockResolver{}
+
+	forwarder := NewDNSForwarder("127.0.0.1:0", 300, mockFirewall, &peer.Status{})
+	forwarder.resolver = mockResolver
+
+	// Set up complex overlapping patterns
+	patterns := []string{
+		"*.example.com",         // Matches all subdomains
+		"*.mail.example.com",    // More specific wildcard
+		"smtp.mail.example.com", // Exact match
+		"example.com",           // Base domain
+	}
+
+	var entries []*ForwarderEntry
+	sets := make(map[string]firewall.Set)
+
+	for _, pattern := range patterns {
+		d, _ := domain.FromString(pattern)
+		set := firewall.NewDomainSet([]domain.Domain{d})
+		sets[pattern] = set
+		entries = append(entries, &ForwarderEntry{
+			Domain: d,
+			ResID:  route.ResID("res-" + pattern),
+			Set:    set,
+		})
+	}
+
+	forwarder.UpdateDomains(entries)
+
+	// Test smtp.mail.example.com - should match 3 patterns
+	fakeIP := netip.MustParseAddr("1.2.3.4")
+	mockResolver.On("LookupNetIP", mock.Anything, "ip4", "smtp.mail.example.com.").Return([]netip.Addr{fakeIP}, nil)
+
+	expectedPrefix := netip.PrefixFrom(fakeIP, 32)
+	// All three matching patterns should get firewall updates
+	mockFirewall.On("UpdateSet", sets["smtp.mail.example.com"], []netip.Prefix{expectedPrefix}).Return(nil)
+	mockFirewall.On("UpdateSet", sets["*.mail.example.com"], []netip.Prefix{expectedPrefix}).Return(nil)
+	mockFirewall.On("UpdateSet", sets["*.example.com"], []netip.Prefix{expectedPrefix}).Return(nil)
+
+	query := &dns.Msg{}
+	query.SetQuestion("smtp.mail.example.com.", dns.TypeA)
+
+	mockWriter := &test.MockResponseWriter{}
+	resp := forwarder.handleDNSQuery(mockWriter, query)
+
+	require.NotNil(t, resp)
+	assert.Equal(t, dns.RcodeSuccess, resp.Rcode)
+
+	// Verify all three sets were updated
+	mockFirewall.AssertExpectations(t)
+
+	// Verify the most specific ResID was selected
+	// (exact match should win over wildcards)
+	resID, matches := forwarder.getMatchingEntries("smtp.mail.example.com")
+	assert.Equal(t, route.ResID("res-smtp.mail.example.com"), resID)
+	assert.Len(t, matches, 3, "Should match 3 patterns")
+}
+
+func TestDNSForwarder_EmptyQuery(t *testing.T) {
+	// Test handling of malformed query with no questions
+	forwarder := NewDNSForwarder("127.0.0.1:0", 300, nil, &peer.Status{})
+
+	query := &dns.Msg{}
+	// Don't set any question
+
+	writeCalled := false
+	mockWriter := &test.MockResponseWriter{
+		WriteMsgFunc: func(m *dns.Msg) error {
+			writeCalled = true
+			return nil
+		},
+	}
+	resp := forwarder.handleDNSQuery(mockWriter, query)
+
+	assert.Nil(t, resp, "Should return nil for empty query")
+	assert.False(t, writeCalled, "Should not write response for empty query")
+}

client/internal/engine.go

@@ -38,7 +38,6 @@ import (
 	nftypes "github.com/netbirdio/netbird/client/internal/netflow/types"
 	"github.com/netbirdio/netbird/client/internal/networkmonitor"
 	"github.com/netbirdio/netbird/client/internal/peer"
-	"github.com/netbirdio/netbird/client/internal/peer/dispatcher"
 	"github.com/netbirdio/netbird/client/internal/peer/guard"
 	icemaker "github.com/netbirdio/netbird/client/internal/peer/ice"
 	"github.com/netbirdio/netbird/client/internal/peerstore"
@@ -62,7 +61,6 @@ import (
 	signal "github.com/netbirdio/netbird/signal/client"
 	sProto "github.com/netbirdio/netbird/signal/proto"
 	"github.com/netbirdio/netbird/util"
-	nbnet "github.com/netbirdio/netbird/util/net"
 )
 
 // PeerConnectionTimeoutMax is a timeout of an initial connection attempt to a remote peer.
@@ -139,9 +137,6 @@ type Engine struct {
 
 	connMgr *ConnMgr
 
-	beforePeerHook nbnet.AddHookFunc
-	afterPeerHook  nbnet.RemoveHookFunc
-
 	// rpManager is a Rosenpass manager
 	rpManager *rosenpass.Manager
 
@@ -175,8 +170,7 @@ type Engine struct {
 	sshServerFunc func(hostKeyPEM []byte, addr string) (nbssh.Server, error)
 	sshServer     nbssh.Server
 
-	statusRecorder     *peer.Status
-	peerConnDispatcher *dispatcher.ConnectionDispatcher
+	statusRecorder *peer.Status
 
 	firewall          firewallManager.Manager
 	routeManager      routemanager.Manager
@@ -383,7 +377,13 @@ func (e *Engine) Start() error {
 	}
 	e.stateManager.Start()
 
-	initialRoutes, dnsServer, err := e.newDnsServer()
+	initialRoutes, dnsConfig, dnsFeatureFlag, err := e.readInitialSettings()
+	if err != nil {
+		e.close()
+		return fmt.Errorf("read initial settings: %w", err)
+	}
+
+	dnsServer, err := e.newDnsServer(dnsConfig)
 	if err != nil {
 		e.close()
 		return fmt.Errorf("create dns server: %w", err)
@@ -400,16 +400,13 @@ func (e *Engine) Start() error {
 		InitialRoutes:       initialRoutes,
 		StateManager:        e.stateManager,
 		DNSServer:           dnsServer,
+		DNSFeatureFlag:      dnsFeatureFlag,
 		PeerStore:           e.peerStore,
 		DisableClientRoutes: e.config.DisableClientRoutes,
 		DisableServerRoutes: e.config.DisableServerRoutes,
 	})
-	beforePeerHook, afterPeerHook, err := e.routeManager.Init()
-	if err != nil {
+	if err := e.routeManager.Init(); err != nil {
 		log.Errorf("Failed to initialize route manager: %s", err)
-	} else {
-		e.beforePeerHook = beforePeerHook
-		e.afterPeerHook = afterPeerHook
 	}
 
 	e.routeManager.SetRouteChangeListener(e.mobileDep.NetworkChangeListener)
@@ -451,9 +448,7 @@ func (e *Engine) Start() error {
 		NATExternalIPs:       e.parseNATExternalIPMappings(),
 	}
 
-	e.peerConnDispatcher = dispatcher.NewConnectionDispatcher()
-
-	e.connMgr = NewConnMgr(e.config, e.statusRecorder, e.peerStore, wgIface, e.peerConnDispatcher)
+	e.connMgr = NewConnMgr(e.config, e.statusRecorder, e.peerStore, wgIface)
 	e.connMgr.Start(e.ctx)
 
 	e.srWatcher = guard.NewSRWatcher(e.signal, e.relayManager, e.mobileDep.IFaceDiscover, iceCfg)
@@ -488,9 +483,9 @@ func (e *Engine) createFirewall() error {
 }
 
 func (e *Engine) initFirewall() error {
-	if err := e.routeManager.EnableServerRouter(e.firewall); err != nil {
+	if err := e.routeManager.SetFirewall(e.firewall); err != nil {
 		e.close()
-		return fmt.Errorf("enable server router: %w", err)
+		return fmt.Errorf("set firewall: %w", err)
 	}
 
 	if e.config.BlockLANAccess {
@@ -1009,8 +1004,6 @@ func (e *Engine) updateNetworkMap(networkMap *mgmProto.NetworkMap) error {
 		log.Errorf("failed to update dns server, err: %v", err)
 	}
 
-	dnsRouteFeatureFlag := toDNSFeatureFlag(networkMap)
-
 	// apply routes first, route related actions might depend on routing being enabled
 	routes := toRoutes(networkMap.GetRoutes())
 	serverRoutes, clientRoutes := e.routeManager.ClassifyRoutes(routes)
@@ -1021,6 +1014,7 @@ func (e *Engine) updateNetworkMap(networkMap *mgmProto.NetworkMap) error {
 		log.Debugf("updated lazy connection manager with %d HA groups", len(clientRoutes))
 	}
 
+	dnsRouteFeatureFlag := toDNSFeatureFlag(networkMap)
 	if err := e.routeManager.UpdateRoutes(serial, serverRoutes, clientRoutes, dnsRouteFeatureFlag); err != nil {
 		log.Errorf("failed to update routes: %v", err)
 	}
@@ -1255,14 +1249,10 @@ func (e *Engine) addNewPeer(peerConfig *mgmProto.RemotePeerConfig) error {
 	}
 
 	if exists := e.connMgr.AddPeerConn(e.ctx, peerKey, conn); exists {
-		conn.Close()
+		conn.Close(false)
 		return fmt.Errorf("peer already exists: %s", peerKey)
 	}
 
-	if e.beforePeerHook != nil && e.afterPeerHook != nil {
-		conn.AddBeforeAddPeerHook(e.beforePeerHook)
-		conn.AddAfterRemovePeerHook(e.afterPeerHook)
-	}
 	return nil
 }
 
@@ -1302,13 +1292,12 @@ func (e *Engine) createPeerConn(pubKey string, allowedIPs []netip.Prefix, agentV
 	}
 
 	serviceDependencies := peer.ServiceDependencies{
-		StatusRecorder:     e.statusRecorder,
-		Signaler:           e.signaler,
-		IFaceDiscover:      e.mobileDep.IFaceDiscover,
-		RelayManager:       e.relayManager,
-		SrWatcher:          e.srWatcher,
-		Semaphore:          e.connSemaphore,
-		PeerConnDispatcher: e.peerConnDispatcher,
+		StatusRecorder: e.statusRecorder,
+		Signaler:       e.signaler,
+		IFaceDiscover:  e.mobileDep.IFaceDiscover,
+		RelayManager:   e.relayManager,
+		SrWatcher:      e.srWatcher,
+		Semaphore:      e.connSemaphore,
 	}
 	peerConn, err := peer.NewConn(config, serviceDependencies)
 	if err != nil {
@@ -1331,11 +1320,16 @@ func (e *Engine) receiveSignalEvents() {
 			e.syncMsgMux.Lock()
 			defer e.syncMsgMux.Unlock()
 
-			conn, ok := e.connMgr.OnSignalMsg(e.ctx, msg.Key)
+			conn, ok := e.peerStore.PeerConn(msg.Key)
 			if !ok {
 				return fmt.Errorf("wrongly addressed message %s", msg.Key)
 			}
 
+			msgType := msg.GetBody().GetType()
+			if msgType != sProto.Body_GO_IDLE {
+				e.connMgr.ActivatePeer(e.ctx, conn)
+			}
+
 			switch msg.GetBody().Type {
 			case sProto.Body_OFFER:
 				remoteCred, err := signal.UnMarshalCredential(msg)
@@ -1392,6 +1386,8 @@ func (e *Engine) receiveSignalEvents() {
 
 				go conn.OnRemoteCandidate(candidate, e.routeManager.GetClientRoutes())
 			case sProto.Body_MODE:
+			case sProto.Body_GO_IDLE:
+				e.connMgr.DeactivatePeer(conn)
 			}
 
 			return nil
@@ -1489,7 +1485,12 @@ func (e *Engine) close() {
 	}
 }
 
-func (e *Engine) readInitialSettings() ([]*route.Route, *nbdns.Config, error) {
+func (e *Engine) readInitialSettings() ([]*route.Route, *nbdns.Config, bool, error) {
+	if runtime.GOOS != "android" {
+		// nolint:nilnil
+		return nil, nil, false, nil
+	}
+
 	info := system.GetInfo(e.ctx)
 	info.SetFlags(
 		e.config.RosenpassEnabled,
@@ -1506,11 +1507,12 @@ func (e *Engine) readInitialSettings() ([]*route.Route, *nbdns.Config, error) {
 
 	netMap, err := e.mgmClient.GetNetworkMap(info)
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, false, err
 	}
 	routes := toRoutes(netMap.GetRoutes())
 	dnsCfg := toDNSConfig(netMap.GetDNSConfig(), e.wgInterface.Address().Network)
-	return routes, &dnsCfg, nil
+	dnsFeatureFlag := toDNSFeatureFlag(netMap)
+	return routes, &dnsCfg, dnsFeatureFlag, nil
 }
 
 func (e *Engine) newWgIface() (*iface.WGIface, error) {
@@ -1527,6 +1529,7 @@ func (e *Engine) newWgIface() (*iface.WGIface, error) {
 		MTU:          iface.DefaultMTU,
 		TransportNet: transportNet,
 		FilterFn:     e.addrViaRoutes,
+		DisableDNS:   e.config.DisableDNS,
 	}
 
 	switch runtime.GOOS {
@@ -1557,18 +1560,14 @@ func (e *Engine) wgInterfaceCreate() (err error) {
 	return err
 }
 
-func (e *Engine) newDnsServer() ([]*route.Route, dns.Server, error) {
+func (e *Engine) newDnsServer(dnsConfig *nbdns.Config) (dns.Server, error) {
 	// due to tests where we are using a mocked version of the DNS server
 	if e.dnsServer != nil {
-		return nil, e.dnsServer, nil
+		return e.dnsServer, nil
 	}
 
 	switch runtime.GOOS {
 	case "android":
-		routes, dnsConfig, err := e.readInitialSettings()
-		if err != nil {
-			return nil, nil, err
-		}
 		dnsServer := dns.NewDefaultServerPermanentUpstream(
 			e.ctx,
 			e.wgInterface,
@@ -1579,19 +1578,19 @@ func (e *Engine) newDnsServer() ([]*route.Route, dns.Server, error) {
 			e.config.DisableDNS,
 		)
 		go e.mobileDep.DnsReadyListener.OnReady()
-		return routes, dnsServer, nil
+		return dnsServer, nil
 
 	case "ios":
 		dnsServer := dns.NewDefaultServerIos(e.ctx, e.wgInterface, e.mobileDep.DnsManager, e.statusRecorder, e.config.DisableDNS)
-		return nil, dnsServer, nil
+		return dnsServer, nil
 
 	default:
 		dnsServer, err := dns.NewDefaultServer(e.ctx, e.wgInterface, e.config.CustomDNSAddress, e.statusRecorder, e.stateManager, e.config.DisableDNS)
 		if err != nil {
-			return nil, nil, err
+			return nil, err
 		}
 
-		return nil, dnsServer, nil
+		return dnsServer, nil
 	}
 }
 

client/internal/engine_test.go

@@ -36,7 +36,6 @@ import (
 	"github.com/netbirdio/netbird/client/iface/wgproxy"
 	"github.com/netbirdio/netbird/client/internal/dns"
 	"github.com/netbirdio/netbird/client/internal/peer"
-	"github.com/netbirdio/netbird/client/internal/peer/dispatcher"
 	"github.com/netbirdio/netbird/client/internal/peer/guard"
 	icemaker "github.com/netbirdio/netbird/client/internal/peer/ice"
 	"github.com/netbirdio/netbird/client/internal/routemanager"
@@ -53,6 +52,7 @@ import (
 	"github.com/netbirdio/netbird/management/server/store"
 	"github.com/netbirdio/netbird/management/server/telemetry"
 	"github.com/netbirdio/netbird/management/server/types"
+	"github.com/netbirdio/netbird/monotime"
 	relayClient "github.com/netbirdio/netbird/relay/client"
 	"github.com/netbirdio/netbird/route"
 	signal "github.com/netbirdio/netbird/signal/client"
@@ -97,6 +97,7 @@ type MockWGIface struct {
 	GetInterfaceGUIDStringFunc func() (string, error)
 	GetProxyFunc               func() wgproxy.Proxy
 	GetNetFunc                 func() *netstack.Net
+	LastActivitiesFunc         func() map[string]monotime.Time
 }
 
 func (m *MockWGIface) FullStats() (*configurer.Stats, error) {
@@ -187,6 +188,13 @@ func (m *MockWGIface) GetNet() *netstack.Net {
 	return m.GetNetFunc()
 }
 
+func (m *MockWGIface) LastActivities() map[string]monotime.Time {
+	if m.LastActivitiesFunc != nil {
+		return m.LastActivitiesFunc()
+	}
+	return nil
+}
+
 func TestMain(m *testing.M) {
 	_ = util.InitLog("debug", "console")
 	code := m.Run()
@@ -392,7 +400,7 @@ func TestEngine_UpdateNetworkMap(t *testing.T) {
 		StatusRecorder:   engine.statusRecorder,
 		RelayManager:     relayMgr,
 	})
-	_, _, err = engine.routeManager.Init()
+	err = engine.routeManager.Init()
 	require.NoError(t, err)
 	engine.dnsServer = &dns.MockServer{
 		UpdateDNSServerFunc: func(serial uint64, update nbdns.Config) error { return nil },
@@ -404,7 +412,7 @@ func TestEngine_UpdateNetworkMap(t *testing.T) {
 	engine.udpMux = bind.NewUniversalUDPMuxDefault(bind.UniversalUDPMuxParams{UDPConn: conn})
 	engine.ctx = ctx
 	engine.srWatcher = guard.NewSRWatcher(nil, nil, nil, icemaker.Config{})
-	engine.connMgr = NewConnMgr(engine.config, engine.statusRecorder, engine.peerStore, wgIface, dispatcher.NewConnectionDispatcher())
+	engine.connMgr = NewConnMgr(engine.config, engine.statusRecorder, engine.peerStore, wgIface)
 	engine.connMgr.Start(ctx)
 
 	type testCase struct {
@@ -793,7 +801,7 @@ func TestEngine_UpdateNetworkMapWithRoutes(t *testing.T) {
 
 			engine.routeManager = mockRouteManager
 			engine.dnsServer = &dns.MockServer{}
-			engine.connMgr = NewConnMgr(engine.config, engine.statusRecorder, engine.peerStore, engine.wgInterface, dispatcher.NewConnectionDispatcher())
+			engine.connMgr = NewConnMgr(engine.config, engine.statusRecorder, engine.peerStore, engine.wgInterface)
 			engine.connMgr.Start(ctx)
 
 			defer func() {
@@ -991,7 +999,7 @@ func TestEngine_UpdateNetworkMapWithDNSUpdate(t *testing.T) {
 			}
 
 			engine.dnsServer = mockDNSServer
-			engine.connMgr = NewConnMgr(engine.config, engine.statusRecorder, engine.peerStore, engine.wgInterface, dispatcher.NewConnectionDispatcher())
+			engine.connMgr = NewConnMgr(engine.config, engine.statusRecorder, engine.peerStore, engine.wgInterface)
 			engine.connMgr.Start(ctx)
 
 			defer func() {
@@ -1473,16 +1481,20 @@ func startManagement(t *testing.T, dataDir, testFile string) (*grpc.Server, stri
 		GetSettings(gomock.Any(), gomock.Any(), gomock.Any()).
 		Return(&types.Settings{}, nil).
 		AnyTimes()
+	settingsMockManager.EXPECT().
+		GetExtraSettings(gomock.Any(), gomock.Any()).
+		Return(&types.ExtraSettings{}, nil).
+		AnyTimes()
 
 	permissionsManager := permissions.NewManager(store)
 
-	accountManager, err := server.BuildManager(context.Background(), store, peersUpdateManager, nil, "", "netbird.selfhosted", eventStore, nil, false, ia, metrics, port_forwarding.NewControllerMock(), settingsMockManager, permissionsManager)
+	accountManager, err := server.BuildManager(context.Background(), store, peersUpdateManager, nil, "", "netbird.selfhosted", eventStore, nil, false, ia, metrics, port_forwarding.NewControllerMock(), settingsMockManager, permissionsManager, false)
 	if err != nil {
 		return nil, "", err
 	}
 
 	secretsManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay, settingsMockManager)
-	mgmtServer, err := server.NewServer(context.Background(), config, accountManager, settingsMockManager, peersUpdateManager, secretsManager, nil, nil, nil)
+	mgmtServer, err := server.NewServer(context.Background(), config, accountManager, settingsMockManager, peersUpdateManager, secretsManager, nil, nil, nil, &server.MockIntegratedValidator{})
 	if err != nil {
 		return nil, "", err
 	}

client/internal/iface_common.go

@@ -14,6 +14,7 @@ import (
 	"github.com/netbirdio/netbird/client/iface/device"
 	"github.com/netbirdio/netbird/client/iface/wgaddr"
 	"github.com/netbirdio/netbird/client/iface/wgproxy"
+	"github.com/netbirdio/netbird/monotime"
 )
 
 type wgIfaceBase interface {
@@ -38,4 +39,5 @@ type wgIfaceBase interface {
 	GetStats() (map[string]configurer.WGStats, error)
 	GetNet() *netstack.Net
 	FullStats() (*configurer.Stats, error)
+	LastActivities() map[string]monotime.Time
 }

client/internal/lazyconn/activity/listener.go

@@ -13,7 +13,7 @@ import (
 
 // Listener it is not a thread safe implementation, do not call Close before ReadPackets. It will cause blocking
 type Listener struct {
-	wgIface  lazyconn.WGIface
+	wgIface  WgInterface
 	peerCfg  lazyconn.PeerConfig
 	conn     *net.UDPConn
 	endpoint *net.UDPAddr
@@ -22,7 +22,7 @@ type Listener struct {
 	isClosed atomic.Bool // use to avoid error log when closing the listener
 }
 
-func NewListener(wgIface lazyconn.WGIface, cfg lazyconn.PeerConfig) (*Listener, error) {
+func NewListener(wgIface WgInterface, cfg lazyconn.PeerConfig) (*Listener, error) {
 	d := &Listener{
 		wgIface: wgIface,
 		peerCfg: cfg,
@@ -48,7 +48,7 @@ func (d *Listener) ReadPackets() {
 		n, remoteAddr, err := d.conn.ReadFromUDP(make([]byte, 1))
 		if err != nil {
 			if d.isClosed.Load() {
-				d.peerCfg.Log.Debugf("exit from activity listener")
+				d.peerCfg.Log.Infof("exit from activity listener")
 			} else {
 				d.peerCfg.Log.Errorf("failed to read from activity listener: %s", err)
 			}
@@ -59,9 +59,11 @@ func (d *Listener) ReadPackets() {
 			d.peerCfg.Log.Warnf("received %d bytes from %s, too short", n, remoteAddr)
 			continue
 		}
+		d.peerCfg.Log.Infof("activity detected")
 		break
 	}
 
+	d.peerCfg.Log.Debugf("removing lazy endpoint: %s", d.endpoint.String())
 	if err := d.removeEndpoint(); err != nil {
 		d.peerCfg.Log.Errorf("failed to remove endpoint: %s", err)
 	}
@@ -71,7 +73,7 @@ func (d *Listener) ReadPackets() {
 }
 
 func (d *Listener) Close() {
-	d.peerCfg.Log.Infof("closing listener: %s", d.conn.LocalAddr().String())
+	d.peerCfg.Log.Infof("closing activity listener: %s", d.conn.LocalAddr().String())
 	d.isClosed.Store(true)
 
 	if err := d.conn.Close(); err != nil {
@@ -81,7 +83,6 @@ func (d *Listener) Close() {
 }
 
 func (d *Listener) removeEndpoint() error {
-	d.peerCfg.Log.Debugf("removing lazy endpoint: %s", d.endpoint.String())
 	return d.wgIface.RemovePeer(d.peerCfg.PublicKey)
 }
 

client/internal/lazyconn/activity/manager.go

@@ -1,18 +1,27 @@
 package activity
 
 import (
+	"net"
+	"net/netip"
 	"sync"
+	"time"
 
 	log "github.com/sirupsen/logrus"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 
 	"github.com/netbirdio/netbird/client/internal/lazyconn"
 	peerid "github.com/netbirdio/netbird/client/internal/peer/id"
 )
 
+type WgInterface interface {
+	RemovePeer(peerKey string) error
+	UpdatePeer(peerKey string, allowedIps []netip.Prefix, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error
+}
+
 type Manager struct {
 	OnActivityChan chan peerid.ConnID
 
-	wgIface lazyconn.WGIface
+	wgIface WgInterface
 
 	peers map[peerid.ConnID]*Listener
 	done  chan struct{}
@@ -20,7 +29,7 @@ type Manager struct {
 	mu sync.Mutex
 }
 
-func NewManager(wgIface lazyconn.WGIface) *Manager {
+func NewManager(wgIface WgInterface) *Manager {
 	m := &Manager{
 		OnActivityChan: make(chan peerid.ConnID, 1),
 		wgIface:        wgIface,

client/internal/lazyconn/activity/manager_test.go

@@ -33,6 +33,15 @@ func (m MocWGIface) UpdatePeer(string, []netip.Prefix, time.Duration, *net.UDPAd
 
 }
 
+// Add this method to the Manager struct
+func (m *Manager) GetPeerListener(peerConnID peerid.ConnID) (*Listener, bool) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	listener, exists := m.peers[peerConnID]
+	return listener, exists
+}
+
 func TestManager_MonitorPeerActivity(t *testing.T) {
 	mocWgInterface := &MocWGIface{}
 
@@ -51,7 +60,12 @@ func TestManager_MonitorPeerActivity(t *testing.T) {
 		t.Fatalf("failed to monitor peer activity: %v", err)
 	}
 
-	if err := trigger(mgr.peers[peerCfg1.PeerConnID].conn.LocalAddr().String()); err != nil {
+	listener, exists := mgr.GetPeerListener(peerCfg1.PeerConnID)
+	if !exists {
+		t.Fatalf("peer listener not found")
+	}
+
+	if err := trigger(listener.conn.LocalAddr().String()); err != nil {
 		t.Fatalf("failed to trigger activity: %v", err)
 	}
 
@@ -128,11 +142,21 @@ func TestManager_MultiPeerActivity(t *testing.T) {
 		t.Fatalf("failed to monitor peer activity: %v", err)
 	}
 
-	if err := trigger(mgr.peers[peerCfg1.PeerConnID].conn.LocalAddr().String()); err != nil {
+	listener, exists := mgr.GetPeerListener(peerCfg1.PeerConnID)
+	if !exists {
+		t.Fatalf("peer listener for peer1 not found")
+	}
+
+	if err := trigger(listener.conn.LocalAddr().String()); err != nil {
 		t.Fatalf("failed to trigger activity: %v", err)
 	}
 
-	if err := trigger(mgr.peers[peerCfg2.PeerConnID].conn.LocalAddr().String()); err != nil {
+	listener, exists = mgr.GetPeerListener(peerCfg2.PeerConnID)
+	if !exists {
+		t.Fatalf("peer listener for peer2 not found")
+	}
+
+	if err := trigger(listener.conn.LocalAddr().String()); err != nil {
 		t.Fatalf("failed to trigger activity: %v", err)
 	}
 

client/internal/lazyconn/inactivity/inactivity.go

@@ -1,70 +0,0 @@
-package inactivity
-
-import (
-	"context"
-	"time"
-
-	peer "github.com/netbirdio/netbird/client/internal/peer/id"
-)
-
-const (
-	DefaultInactivityThreshold = 60 * time.Minute // idle after 1 hour inactivity
-	MinimumInactivityThreshold = 3 * time.Minute
-)
-
-type Monitor struct {
-	id                  peer.ConnID
-	timer               *time.Timer
-	cancel              context.CancelFunc
-	inactivityThreshold time.Duration
-}
-
-func NewInactivityMonitor(peerID peer.ConnID, threshold time.Duration) *Monitor {
-	i := &Monitor{
-		id:                  peerID,
-		timer:               time.NewTimer(0),
-		inactivityThreshold: threshold,
-	}
-	i.timer.Stop()
-	return i
-}
-
-func (i *Monitor) Start(ctx context.Context, timeoutChan chan peer.ConnID) {
-	i.timer.Reset(i.inactivityThreshold)
-	defer i.timer.Stop()
-
-	ctx, i.cancel = context.WithCancel(ctx)
-	defer func() {
-		defer i.cancel()
-		select {
-		case <-i.timer.C:
-		default:
-		}
-	}()
-
-	select {
-	case <-i.timer.C:
-		select {
-		case timeoutChan <- i.id:
-		case <-ctx.Done():
-			return
-		}
-	case <-ctx.Done():
-		return
-	}
-}
-
-func (i *Monitor) Stop() {
-	if i.cancel == nil {
-		return
-	}
-	i.cancel()
-}
-
-func (i *Monitor) PauseTimer() {
-	i.timer.Stop()
-}
-
-func (i *Monitor) ResetTimer() {
-	i.timer.Reset(i.inactivityThreshold)
-}

client/internal/lazyconn/inactivity/inactivity_test.go

@@ -1,156 +0,0 @@
-package inactivity
-
-import (
-	"context"
-	"testing"
-	"time"
-
-	peerid "github.com/netbirdio/netbird/client/internal/peer/id"
-)
-
-type MocPeer struct {
-}
-
-func (m *MocPeer) ConnID() peerid.ConnID {
-	return peerid.ConnID(m)
-}
-
-func TestInactivityMonitor(t *testing.T) {
-	tCtx, testTimeoutCancel := context.WithTimeout(context.Background(), time.Second*5)
-	defer testTimeoutCancel()
-
-	p := &MocPeer{}
-	im := NewInactivityMonitor(p.ConnID(), time.Second*2)
-
-	timeoutChan := make(chan peerid.ConnID)
-
-	exitChan := make(chan struct{})
-
-	go func() {
-		defer close(exitChan)
-		im.Start(tCtx, timeoutChan)
-	}()
-
-	select {
-	case <-timeoutChan:
-	case <-tCtx.Done():
-		t.Fatal("timeout")
-	}
-
-	select {
-	case <-exitChan:
-	case <-tCtx.Done():
-		t.Fatal("timeout")
-	}
-}
-
-func TestReuseInactivityMonitor(t *testing.T) {
-	p := &MocPeer{}
-	im := NewInactivityMonitor(p.ConnID(), time.Second*2)
-
-	timeoutChan := make(chan peerid.ConnID)
-
-	for i := 2; i > 0; i-- {
-		exitChan := make(chan struct{})
-
-		testTimeoutCtx, testTimeoutCancel := context.WithTimeout(context.Background(), time.Second*5)
-
-		go func() {
-			defer close(exitChan)
-			im.Start(testTimeoutCtx, timeoutChan)
-		}()
-
-		select {
-		case <-timeoutChan:
-		case <-testTimeoutCtx.Done():
-			t.Fatal("timeout")
-		}
-
-		select {
-		case <-exitChan:
-		case <-testTimeoutCtx.Done():
-			t.Fatal("timeout")
-		}
-		testTimeoutCancel()
-	}
-}
-
-func TestStopInactivityMonitor(t *testing.T) {
-	tCtx, testTimeoutCancel := context.WithTimeout(context.Background(), time.Second*5)
-	defer testTimeoutCancel()
-
-	p := &MocPeer{}
-	im := NewInactivityMonitor(p.ConnID(), DefaultInactivityThreshold)
-
-	timeoutChan := make(chan peerid.ConnID)
-
-	exitChan := make(chan struct{})
-
-	go func() {
-		defer close(exitChan)
-		im.Start(tCtx, timeoutChan)
-	}()
-
-	go func() {
-		time.Sleep(3 * time.Second)
-		im.Stop()
-	}()
-
-	select {
-	case <-timeoutChan:
-		t.Fatal("unexpected timeout")
-	case <-exitChan:
-	case <-tCtx.Done():
-		t.Fatal("timeout")
-	}
-}
-
-func TestPauseInactivityMonitor(t *testing.T) {
-	tCtx, testTimeoutCancel := context.WithTimeout(context.Background(), time.Second*10)
-	defer testTimeoutCancel()
-
-	p := &MocPeer{}
-	trashHold := time.Second * 3
-	im := NewInactivityMonitor(p.ConnID(), trashHold)
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	timeoutChan := make(chan peerid.ConnID)
-
-	exitChan := make(chan struct{})
-
-	go func() {
-		defer close(exitChan)
-		im.Start(ctx, timeoutChan)
-	}()
-
-	time.Sleep(1 * time.Second) // grant time to start the monitor
-	im.PauseTimer()
-
-	// check to do not receive timeout
-	thresholdCtx, thresholdCancel := context.WithTimeout(context.Background(), trashHold+time.Second)
-	defer thresholdCancel()
-	select {
-	case <-exitChan:
-		t.Fatal("unexpected exit")
-	case <-timeoutChan:
-		t.Fatal("unexpected timeout")
-	case <-thresholdCtx.Done():
-		// test ok
-	case <-tCtx.Done():
-		t.Fatal("test timed out")
-	}
-
-	// test reset timer
-	im.ResetTimer()
-
-	select {
-	case <-tCtx.Done():
-		t.Fatal("test timed out")
-	case <-exitChan:
-		t.Fatal("unexpected exit")
-	case <-timeoutChan:
-		// expected timeout
-	}
-}

client/internal/lazyconn/inactivity/manager.go

@@ -0,0 +1,155 @@
+package inactivity
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/internal/lazyconn"
+	"github.com/netbirdio/netbird/monotime"
+)
+
+const (
+	checkInterval = 1 * time.Minute
+
+	DefaultInactivityThreshold = 15 * time.Minute
+	MinimumInactivityThreshold = 1 * time.Minute
+)
+
+type WgInterface interface {
+	LastActivities() map[string]monotime.Time
+}
+
+type Manager struct {
+	inactivePeersChan chan map[string]struct{}
+
+	iface               WgInterface
+	interestedPeers     map[string]*lazyconn.PeerConfig
+	inactivityThreshold time.Duration
+}
+
+func NewManager(iface WgInterface, configuredThreshold *time.Duration) *Manager {
+	inactivityThreshold, err := validateInactivityThreshold(configuredThreshold)
+	if err != nil {
+		inactivityThreshold = DefaultInactivityThreshold
+		log.Warnf("invalid inactivity threshold configured: %v, using default: %v", err, DefaultInactivityThreshold)
+	}
+
+	log.Infof("inactivity threshold configured: %v", inactivityThreshold)
+	return &Manager{
+		inactivePeersChan:   make(chan map[string]struct{}, 1),
+		iface:               iface,
+		interestedPeers:     make(map[string]*lazyconn.PeerConfig),
+		inactivityThreshold: inactivityThreshold,
+	}
+}
+
+func (m *Manager) InactivePeersChan() chan map[string]struct{} {
+	if m == nil {
+		// return a nil channel that blocks forever
+		return nil
+	}
+
+	return m.inactivePeersChan
+}
+
+func (m *Manager) AddPeer(peerCfg *lazyconn.PeerConfig) {
+	if m == nil {
+		return
+	}
+
+	if _, exists := m.interestedPeers[peerCfg.PublicKey]; exists {
+		return
+	}
+
+	peerCfg.Log.Infof("adding peer to inactivity manager")
+	m.interestedPeers[peerCfg.PublicKey] = peerCfg
+}
+
+func (m *Manager) RemovePeer(peer string) {
+	if m == nil {
+		return
+	}
+
+	pi, ok := m.interestedPeers[peer]
+	if !ok {
+		return
+	}
+
+	pi.Log.Debugf("remove peer from inactivity manager")
+	delete(m.interestedPeers, peer)
+}
+
+func (m *Manager) Start(ctx context.Context) {
+	if m == nil {
+		return
+	}
+
+	ticker := newTicker(checkInterval)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-ticker.C():
+			idlePeers, err := m.checkStats()
+			if err != nil {
+				log.Errorf("error checking stats: %v", err)
+				return
+			}
+
+			if len(idlePeers) == 0 {
+				continue
+			}
+
+			m.notifyInactivePeers(ctx, idlePeers)
+		}
+	}
+}
+
+func (m *Manager) notifyInactivePeers(ctx context.Context, inactivePeers map[string]struct{}) {
+	select {
+	case m.inactivePeersChan <- inactivePeers:
+	case <-ctx.Done():
+		return
+	default:
+		return
+	}
+}
+
+func (m *Manager) checkStats() (map[string]struct{}, error) {
+	lastActivities := m.iface.LastActivities()
+
+	idlePeers := make(map[string]struct{})
+
+	checkTime := time.Now()
+	for peerID, peerCfg := range m.interestedPeers {
+		lastActive, ok := lastActivities[peerID]
+		if !ok {
+			// when peer is in connecting state
+			peerCfg.Log.Warnf("peer not found in wg stats")
+			continue
+		}
+
+		since := monotime.Since(lastActive)
+		if since > m.inactivityThreshold {
+			peerCfg.Log.Infof("peer is inactive since time: %s", checkTime.Add(-since).String())
+			idlePeers[peerID] = struct{}{}
+		}
+	}
+
+	return idlePeers, nil
+}
+
+func validateInactivityThreshold(configuredThreshold *time.Duration) (time.Duration, error) {
+	if configuredThreshold == nil {
+		return DefaultInactivityThreshold, nil
+	}
+	if *configuredThreshold < MinimumInactivityThreshold {
+		return 0, fmt.Errorf("configured inactivity threshold %v is too low, using %v", *configuredThreshold, MinimumInactivityThreshold)
+	}
+	return *configuredThreshold, nil
+}

client/internal/lazyconn/inactivity/manager_test.go

@@ -0,0 +1,114 @@
+package inactivity
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/stretchr/testify/assert"
+
+	"github.com/netbirdio/netbird/client/internal/lazyconn"
+	"github.com/netbirdio/netbird/monotime"
+)
+
+type mockWgInterface struct {
+	lastActivities map[string]monotime.Time
+}
+
+func (m *mockWgInterface) LastActivities() map[string]monotime.Time {
+	return m.lastActivities
+}
+
+func TestPeerTriggersInactivity(t *testing.T) {
+	peerID := "peer1"
+
+	wgMock := &mockWgInterface{
+		lastActivities: map[string]monotime.Time{
+			peerID: monotime.Time(int64(monotime.Now()) - int64(20*time.Minute)),
+		},
+	}
+
+	fakeTick := make(chan time.Time, 1)
+	newTicker = func(d time.Duration) Ticker {
+		return &fakeTickerMock{CChan: fakeTick}
+	}
+
+	peerLog := log.WithField("peer", peerID)
+	peerCfg := &lazyconn.PeerConfig{
+		PublicKey: peerID,
+		Log:       peerLog,
+	}
+
+	manager := NewManager(wgMock, nil)
+	manager.AddPeer(peerCfg)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// Start the manager in a goroutine
+	go manager.Start(ctx)
+
+	// Send a tick to simulate time passage
+	fakeTick <- time.Now()
+
+	// Check if peer appears on inactivePeersChan
+	select {
+	case inactivePeers := <-manager.inactivePeersChan:
+		assert.Contains(t, inactivePeers, peerID, "expected peer to be marked inactive")
+	case <-time.After(1 * time.Second):
+		t.Fatal("expected inactivity event, but none received")
+	}
+}
+
+func TestPeerTriggersActivity(t *testing.T) {
+	peerID := "peer1"
+
+	wgMock := &mockWgInterface{
+		lastActivities: map[string]monotime.Time{
+			peerID: monotime.Time(int64(monotime.Now()) - int64(5*time.Minute)),
+		},
+	}
+
+	fakeTick := make(chan time.Time, 1)
+	newTicker = func(d time.Duration) Ticker {
+		return &fakeTickerMock{CChan: fakeTick}
+	}
+
+	peerLog := log.WithField("peer", peerID)
+	peerCfg := &lazyconn.PeerConfig{
+		PublicKey: peerID,
+		Log:       peerLog,
+	}
+
+	manager := NewManager(wgMock, nil)
+	manager.AddPeer(peerCfg)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// Start the manager in a goroutine
+	go manager.Start(ctx)
+
+	// Send a tick to simulate time passage
+	fakeTick <- time.Now()
+
+	// Check if peer appears on inactivePeersChan
+	select {
+	case <-manager.inactivePeersChan:
+		t.Fatal("expected inactive peer to be marked inactive")
+	case <-time.After(1 * time.Second):
+		// No inactivity event should be received
+	}
+}
+
+// fakeTickerMock implements Ticker interface for testing
+type fakeTickerMock struct {
+	CChan chan time.Time
+}
+
+func (f *fakeTickerMock) C() <-chan time.Time {
+	return f.CChan
+}
+
+func (f *fakeTickerMock) Stop() {}

client/internal/lazyconn/inactivity/ticker.go

@@ -0,0 +1,24 @@
+package inactivity
+
+import "time"
+
+var newTicker = func(d time.Duration) Ticker {
+	return &realTicker{t: time.NewTicker(d)}
+}
+
+type Ticker interface {
+	C() <-chan time.Time
+	Stop()
+}
+
+type realTicker struct {
+	t *time.Ticker
+}
+
+func (r *realTicker) C() <-chan time.Time {
+	return r.t.C
+}
+
+func (r *realTicker) Stop() {
+	r.t.Stop()
+}

client/internal/lazyconn/manager/manager.go

@@ -11,7 +11,6 @@ import (
 	"github.com/netbirdio/netbird/client/internal/lazyconn"
 	"github.com/netbirdio/netbird/client/internal/lazyconn/activity"
 	"github.com/netbirdio/netbird/client/internal/lazyconn/inactivity"
-	"github.com/netbirdio/netbird/client/internal/peer/dispatcher"
 	peerid "github.com/netbirdio/netbird/client/internal/peer/id"
 	"github.com/netbirdio/netbird/client/internal/peerstore"
 	"github.com/netbirdio/netbird/route"
@@ -43,60 +42,46 @@ type Config struct {
 type Manager struct {
 	engineCtx           context.Context
 	peerStore           *peerstore.Store
-	connStateDispatcher *dispatcher.ConnectionDispatcher
 	inactivityThreshold time.Duration
 
-	connStateListener    *dispatcher.ConnectionListener
 	managedPeers         map[string]*lazyconn.PeerConfig
 	managedPeersByConnID map[peerid.ConnID]*managedPeer
 	excludes             map[string]lazyconn.PeerConfig
 	managedPeersMu       sync.Mutex
 
-	activityManager    *activity.Manager
-	inactivityMonitors map[peerid.ConnID]*inactivity.Monitor
+	activityManager   *activity.Manager
+	inactivityManager *inactivity.Manager
 
 	// Route HA group management
+	// If any peer in the same HA group is active, all peers in that group should prevent going idle
 	peerToHAGroups map[string][]route.HAUniqueID // peer ID -> HA groups they belong to
 	haGroupToPeers map[route.HAUniqueID][]string // HA group -> peer IDs in the group
-	routesMu       sync.RWMutex                  // protects route mappings
-
-	onInactive chan peerid.ConnID
+	routesMu       sync.RWMutex
 }
 
 // NewManager creates a new lazy connection manager
 // engineCtx is the context for creating peer Connection
-func NewManager(config Config, engineCtx context.Context, peerStore *peerstore.Store, wgIface lazyconn.WGIface, connStateDispatcher *dispatcher.ConnectionDispatcher) *Manager {
+func NewManager(config Config, engineCtx context.Context, peerStore *peerstore.Store, wgIface lazyconn.WGIface) *Manager {
 	log.Infof("setup lazy connection service")
+
 	m := &Manager{
 		engineCtx:            engineCtx,
 		peerStore:            peerStore,
-		connStateDispatcher:  connStateDispatcher,
 		inactivityThreshold:  inactivity.DefaultInactivityThreshold,
 		managedPeers:         make(map[string]*lazyconn.PeerConfig),
 		managedPeersByConnID: make(map[peerid.ConnID]*managedPeer),
 		excludes:             make(map[string]lazyconn.PeerConfig),
 		activityManager:      activity.NewManager(wgIface),
-		inactivityMonitors:   make(map[peerid.ConnID]*inactivity.Monitor),
 		peerToHAGroups:       make(map[string][]route.HAUniqueID),
 		haGroupToPeers:       make(map[route.HAUniqueID][]string),
-		onInactive:           make(chan peerid.ConnID),
 	}
 
-	if config.InactivityThreshold != nil {
-		if *config.InactivityThreshold >= inactivity.MinimumInactivityThreshold {
-			m.inactivityThreshold = *config.InactivityThreshold
-		} else {
-			log.Warnf("inactivity threshold is too low, using %v", m.inactivityThreshold)
-		}
+	if wgIface.IsUserspaceBind() {
+		m.inactivityManager = inactivity.NewManager(wgIface, config.InactivityThreshold)
+	} else {
+		log.Warnf("inactivity manager not supported for kernel mode, wait for remote peer to close the connection")
 	}
 
-	m.connStateListener = &dispatcher.ConnectionListener{
-		OnConnected:    m.onPeerConnected,
-		OnDisconnected: m.onPeerDisconnected,
-	}
-
-	connStateDispatcher.AddListener(m.connStateListener)
-
 	return m
 }
 
@@ -131,24 +116,28 @@ func (m *Manager) UpdateRouteHAMap(haMap route.HAMap) {
 		}
 	}
 
-	log.Debugf("updated route HA mappings: %d HA groups, %d peers with routes",
-		len(m.haGroupToPeers), len(m.peerToHAGroups))
+	log.Debugf("updated route HA mappings: %d HA groups, %d peers with routes", len(m.haGroupToPeers), len(m.peerToHAGroups))
 }
 
 // Start starts the manager and listens for peer activity and inactivity events
 func (m *Manager) Start(ctx context.Context) {
 	defer m.close()
 
+	if m.inactivityManager != nil {
+		go m.inactivityManager.Start(ctx)
+	}
+
 	for {
 		select {
 		case <-ctx.Done():
 			return
 		case peerConnID := <-m.activityManager.OnActivityChan:
-			m.onPeerActivity(ctx, peerConnID)
-		case peerConnID := <-m.onInactive:
-			m.onPeerInactivityTimedOut(peerConnID)
+			m.onPeerActivity(peerConnID)
+		case peerIDs := <-m.inactivityManager.InactivePeersChan():
+			m.onPeerInactivityTimedOut(peerIDs)
 		}
 	}
+
 }
 
 // ExcludePeer marks peers for a permanent connection
@@ -156,7 +145,7 @@ func (m *Manager) Start(ctx context.Context) {
 // Adds them back to the managed list and start the inactivity listener if they are removed from the exclude list. In
 // this case, we suppose that the connection status is connected or connecting.
 // If the peer is not exists yet in the managed list then the responsibility is the upper layer to call the AddPeer function
-func (m *Manager) ExcludePeer(ctx context.Context, peerConfigs []lazyconn.PeerConfig) []string {
+func (m *Manager) ExcludePeer(peerConfigs []lazyconn.PeerConfig) []string {
 	m.managedPeersMu.Lock()
 	defer m.managedPeersMu.Unlock()
 
@@ -187,7 +176,7 @@ func (m *Manager) ExcludePeer(ctx context.Context, peerConfigs []lazyconn.PeerCo
 
 		peerCfg.Log.Infof("peer removed from lazy connection exclude list")
 
-		if err := m.addActivePeer(ctx, peerCfg); err != nil {
+		if err := m.addActivePeer(&peerCfg); err != nil {
 			log.Errorf("failed to add peer to lazy connection manager: %s", err)
 			continue
 		}
@@ -217,20 +206,24 @@ func (m *Manager) AddPeer(peerCfg lazyconn.PeerConfig) (bool, error) {
 		return false, err
 	}
 
-	im := inactivity.NewInactivityMonitor(peerCfg.PeerConnID, m.inactivityThreshold)
-	m.inactivityMonitors[peerCfg.PeerConnID] = im
-
 	m.managedPeers[peerCfg.PublicKey] = &peerCfg
 	m.managedPeersByConnID[peerCfg.PeerConnID] = &managedPeer{
 		peerCfg:         &peerCfg,
 		expectedWatcher: watcherActivity,
 	}
+
+	// Check if this peer should be activated because its HA group peers are active
+	if group, ok := m.shouldActivateNewPeer(peerCfg.PublicKey); ok {
+		peerCfg.Log.Debugf("peer belongs to active HA group %s, will activate immediately", group)
+		m.activateNewPeerInActiveGroup(peerCfg)
+	}
+
 	return false, nil
 }
 
 // AddActivePeers adds a list of peers to the lazy connection manager
 // suppose these peers was in connected or in connecting states
-func (m *Manager) AddActivePeers(ctx context.Context, peerCfg []lazyconn.PeerConfig) error {
+func (m *Manager) AddActivePeers(peerCfg []lazyconn.PeerConfig) error {
 	m.managedPeersMu.Lock()
 	defer m.managedPeersMu.Unlock()
 
@@ -240,7 +233,7 @@ func (m *Manager) AddActivePeers(ctx context.Context, peerCfg []lazyconn.PeerCon
 			continue
 		}
 
-		if err := m.addActivePeer(ctx, cfg); err != nil {
+		if err := m.addActivePeer(&cfg); err != nil {
 			cfg.Log.Errorf("failed to add peer to lazy connection manager: %v", err)
 			return err
 		}
@@ -257,7 +250,7 @@ func (m *Manager) RemovePeer(peerID string) {
 
 // ActivatePeer activates a peer connection when a signal message is received
 // Also activates all peers in the same HA groups as this peer
-func (m *Manager) ActivatePeer(ctx context.Context, peerID string) (found bool) {
+func (m *Manager) ActivatePeer(peerID string) (found bool) {
 	m.managedPeersMu.Lock()
 	defer m.managedPeersMu.Unlock()
 	cfg, mp := m.getPeerForActivation(peerID)
@@ -265,15 +258,43 @@ func (m *Manager) ActivatePeer(ctx context.Context, peerID string) (found bool)
 		return false
 	}
 
-	if !m.activateSinglePeer(ctx, cfg, mp) {
+	cfg.Log.Infof("activate peer from inactive state by remote signal message")
+
+	if !m.activateSinglePeer(cfg, mp) {
 		return false
 	}
 
-	m.activateHAGroupPeers(ctx, peerID)
-
+	m.activateHAGroupPeers(cfg)
 	return true
 }
 
+func (m *Manager) DeactivatePeer(peerID peerid.ConnID) {
+	m.managedPeersMu.Lock()
+	defer m.managedPeersMu.Unlock()
+
+	mp, ok := m.managedPeersByConnID[peerID]
+	if !ok {
+		return
+	}
+
+	if mp.expectedWatcher != watcherInactivity {
+		return
+	}
+
+	m.peerStore.PeerConnClose(mp.peerCfg.PublicKey)
+
+	mp.peerCfg.Log.Infof("start activity monitor")
+
+	mp.expectedWatcher = watcherActivity
+
+	m.inactivityManager.RemovePeer(mp.peerCfg.PublicKey)
+
+	if err := m.activityManager.MonitorPeerActivity(*mp.peerCfg); err != nil {
+		mp.peerCfg.Log.Errorf("failed to create activity monitor: %v", err)
+		return
+	}
+}
+
 // getPeerForActivation checks if a peer can be activated and returns the necessary structs
 // Returns nil values if the peer should be skipped
 func (m *Manager) getPeerForActivation(peerID string) (*lazyconn.PeerConfig, *managedPeer) {
@@ -295,82 +316,120 @@ func (m *Manager) getPeerForActivation(peerID string) (*lazyconn.PeerConfig, *ma
 	return cfg, mp
 }
 
-// activateSinglePeer activates a single peer (internal method)
-func (m *Manager) activateSinglePeer(ctx context.Context, cfg *lazyconn.PeerConfig, mp *managedPeer) bool {
-	mp.expectedWatcher = watcherInactivity
-
-	m.activityManager.RemovePeer(cfg.Log, cfg.PeerConnID)
-
-	im, ok := m.inactivityMonitors[cfg.PeerConnID]
-	if !ok {
-		cfg.Log.Errorf("inactivity monitor not found for peer")
+// activateSinglePeer activates a single peer
+// return true if the peer was activated, false if it was already active
+func (m *Manager) activateSinglePeer(cfg *lazyconn.PeerConfig, mp *managedPeer) bool {
+	if mp.expectedWatcher == watcherInactivity {
 		return false
 	}
 
-	cfg.Log.Infof("starting inactivity monitor")
-	go im.Start(ctx, m.onInactive)
-
+	mp.expectedWatcher = watcherInactivity
+	m.activityManager.RemovePeer(cfg.Log, cfg.PeerConnID)
+	m.inactivityManager.AddPeer(cfg)
 	return true
 }
 
 // activateHAGroupPeers activates all peers in HA groups that the given peer belongs to
-func (m *Manager) activateHAGroupPeers(ctx context.Context, triggerPeerID string) {
+func (m *Manager) activateHAGroupPeers(triggeredPeerCfg *lazyconn.PeerConfig) {
+	var peersToActivate []string
+
 	m.routesMu.RLock()
-	haGroups := m.peerToHAGroups[triggerPeerID]
-	m.routesMu.RUnlock()
+	haGroups := m.peerToHAGroups[triggeredPeerCfg.PublicKey]
 
 	if len(haGroups) == 0 {
-		log.Debugf("peer %s is not part of any HA groups", triggerPeerID)
+		m.routesMu.RUnlock()
+		triggeredPeerCfg.Log.Debugf("peer is not part of any HA groups")
 		return
 	}
 
-	activatedCount := 0
 	for _, haGroup := range haGroups {
-		m.routesMu.RLock()
 		peers := m.haGroupToPeers[haGroup]
-		m.routesMu.RUnlock()
-
 		for _, peerID := range peers {
-			if peerID == triggerPeerID {
-				continue
+			if peerID != triggeredPeerCfg.PublicKey {
+				peersToActivate = append(peersToActivate, peerID)
 			}
+		}
+	}
+	m.routesMu.RUnlock()
 
-			cfg, mp := m.getPeerForActivation(peerID)
-			if cfg == nil {
-				continue
-			}
+	activatedCount := 0
+	for _, peerID := range peersToActivate {
+		cfg, mp := m.getPeerForActivation(peerID)
+		if cfg == nil {
+			continue
+		}
 
-			if m.activateSinglePeer(ctx, cfg, mp) {
-				activatedCount++
-				cfg.Log.Infof("activated peer as part of HA group %s (triggered by %s)", haGroup, triggerPeerID)
-				m.peerStore.PeerConnOpen(m.engineCtx, cfg.PublicKey)
-			}
+		if m.activateSinglePeer(cfg, mp) {
+			activatedCount++
+			cfg.Log.Infof("activated peer as part of HA group (triggered by %s)", triggeredPeerCfg.PublicKey)
+			m.peerStore.PeerConnOpen(m.engineCtx, cfg.PublicKey)
 		}
 	}
 
 	if activatedCount > 0 {
 		log.Infof("activated %d additional peers in HA groups for peer %s (groups: %v)",
-			activatedCount, triggerPeerID, haGroups)
+			activatedCount, triggeredPeerCfg.PublicKey, haGroups)
 	}
 }
 
-func (m *Manager) addActivePeer(ctx context.Context, peerCfg lazyconn.PeerConfig) error {
+// shouldActivateNewPeer checks if a newly added peer should be activated
+// because other peers in its HA groups are already active
+func (m *Manager) shouldActivateNewPeer(peerID string) (route.HAUniqueID, bool) {
+	m.routesMu.RLock()
+	defer m.routesMu.RUnlock()
+
+	haGroups := m.peerToHAGroups[peerID]
+	if len(haGroups) == 0 {
+		return "", false
+	}
+
+	for _, haGroup := range haGroups {
+		peers := m.haGroupToPeers[haGroup]
+		for _, groupPeerID := range peers {
+			if groupPeerID == peerID {
+				continue
+			}
+
+			cfg, ok := m.managedPeers[groupPeerID]
+			if !ok {
+				continue
+			}
+			if mp, ok := m.managedPeersByConnID[cfg.PeerConnID]; ok && mp.expectedWatcher == watcherInactivity {
+				return haGroup, true
+			}
+		}
+	}
+	return "", false
+}
+
+// activateNewPeerInActiveGroup activates a newly added peer that should be active due to HA group
+func (m *Manager) activateNewPeerInActiveGroup(peerCfg lazyconn.PeerConfig) {
+	mp, ok := m.managedPeersByConnID[peerCfg.PeerConnID]
+	if !ok {
+		return
+	}
+
+	if !m.activateSinglePeer(&peerCfg, mp) {
+		return
+	}
+
+	peerCfg.Log.Infof("activated newly added peer due to active HA group peers")
+	m.peerStore.PeerConnOpen(m.engineCtx, peerCfg.PublicKey)
+}
+
+func (m *Manager) addActivePeer(peerCfg *lazyconn.PeerConfig) error {
 	if _, ok := m.managedPeers[peerCfg.PublicKey]; ok {
 		peerCfg.Log.Warnf("peer already managed")
 		return nil
 	}
 
-	im := inactivity.NewInactivityMonitor(peerCfg.PeerConnID, m.inactivityThreshold)
-	m.inactivityMonitors[peerCfg.PeerConnID] = im
-
-	m.managedPeers[peerCfg.PublicKey] = &peerCfg
+	m.managedPeers[peerCfg.PublicKey] = peerCfg
 	m.managedPeersByConnID[peerCfg.PeerConnID] = &managedPeer{
-		peerCfg:         &peerCfg,
+		peerCfg:         peerCfg,
 		expectedWatcher: watcherInactivity,
 	}
 
-	peerCfg.Log.Infof("starting inactivity monitor on peer that has been removed from exclude list")
-	go im.Start(ctx, m.onInactive)
+	m.inactivityManager.AddPeer(peerCfg)
 	return nil
 }
 
@@ -382,12 +441,7 @@ func (m *Manager) removePeer(peerID string) {
 
 	cfg.Log.Infof("removing lazy peer")
 
-	if im, ok := m.inactivityMonitors[cfg.PeerConnID]; ok {
-		im.Stop()
-		delete(m.inactivityMonitors, cfg.PeerConnID)
-		cfg.Log.Debugf("inactivity monitor stopped")
-	}
-
+	m.inactivityManager.RemovePeer(cfg.PublicKey)
 	m.activityManager.RemovePeer(cfg.Log, cfg.PeerConnID)
 	delete(m.managedPeers, peerID)
 	delete(m.managedPeersByConnID, cfg.PeerConnID)
@@ -397,12 +451,8 @@ func (m *Manager) close() {
 	m.managedPeersMu.Lock()
 	defer m.managedPeersMu.Unlock()
 
-	m.connStateDispatcher.RemoveListener(m.connStateListener)
 	m.activityManager.Close()
-	for _, iw := range m.inactivityMonitors {
-		iw.Stop()
-	}
-	m.inactivityMonitors = make(map[peerid.ConnID]*inactivity.Monitor)
+
 	m.managedPeers = make(map[string]*lazyconn.PeerConfig)
 	m.managedPeersByConnID = make(map[peerid.ConnID]*managedPeer)
 
@@ -415,7 +465,56 @@ func (m *Manager) close() {
 	log.Infof("lazy connection manager closed")
 }
 
-func (m *Manager) onPeerActivity(ctx context.Context, peerConnID peerid.ConnID) {
+// shouldDeferIdleForHA checks if peer should stay connected due to HA group requirements
+func (m *Manager) shouldDeferIdleForHA(inactivePeers map[string]struct{}, peerID string) bool {
+	m.routesMu.RLock()
+	defer m.routesMu.RUnlock()
+
+	haGroups := m.peerToHAGroups[peerID]
+	if len(haGroups) == 0 {
+		return false
+	}
+
+	for _, haGroup := range haGroups {
+		if active := m.checkHaGroupActivity(haGroup, peerID, inactivePeers); active {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (m *Manager) checkHaGroupActivity(haGroup route.HAUniqueID, peerID string, inactivePeers map[string]struct{}) bool {
+	groupPeers := m.haGroupToPeers[haGroup]
+	for _, groupPeerID := range groupPeers {
+
+		if groupPeerID == peerID {
+			continue
+		}
+
+		cfg, ok := m.managedPeers[groupPeerID]
+		if !ok {
+			continue
+		}
+
+		groupMp, ok := m.managedPeersByConnID[cfg.PeerConnID]
+		if !ok {
+			continue
+		}
+
+		if groupMp.expectedWatcher != watcherInactivity {
+			continue
+		}
+
+		// If any peer in the group is active, do defer idle
+		if _, isInactive := inactivePeers[groupPeerID]; !isInactive {
+			return true
+		}
+	}
+	return false
+}
+
+func (m *Manager) onPeerActivity(peerConnID peerid.ConnID) {
 	m.managedPeersMu.Lock()
 	defer m.managedPeersMu.Unlock()
 
@@ -432,89 +531,56 @@ func (m *Manager) onPeerActivity(ctx context.Context, peerConnID peerid.ConnID)
 
 	mp.peerCfg.Log.Infof("detected peer activity")
 
-	if !m.activateSinglePeer(ctx, mp.peerCfg, mp) {
+	if !m.activateSinglePeer(mp.peerCfg, mp) {
 		return
 	}
 
-	m.activateHAGroupPeers(ctx, mp.peerCfg.PublicKey)
+	m.activateHAGroupPeers(mp.peerCfg)
 
 	m.peerStore.PeerConnOpen(m.engineCtx, mp.peerCfg.PublicKey)
 }
 
-func (m *Manager) onPeerInactivityTimedOut(peerConnID peerid.ConnID) {
+func (m *Manager) onPeerInactivityTimedOut(peerIDs map[string]struct{}) {
 	m.managedPeersMu.Lock()
 	defer m.managedPeersMu.Unlock()
 
-	mp, ok := m.managedPeersByConnID[peerConnID]
-	if !ok {
-		log.Errorf("peer not found by id: %v", peerConnID)
-		return
-	}
+	for peerID := range peerIDs {
+		peerCfg, ok := m.managedPeers[peerID]
+		if !ok {
+			log.Errorf("peer not found by peerId: %v", peerID)
+			continue
+		}
 
-	if mp.expectedWatcher != watcherInactivity {
-		mp.peerCfg.Log.Warnf("ignore inactivity event")
-		return
-	}
+		mp, ok := m.managedPeersByConnID[peerCfg.PeerConnID]
+		if !ok {
+			log.Errorf("peer not found by conn id: %v", peerCfg.PeerConnID)
+			continue
+		}
 
-	mp.peerCfg.Log.Infof("connection timed out")
+		if mp.expectedWatcher != watcherInactivity {
+			mp.peerCfg.Log.Warnf("ignore inactivity event")
+			continue
+		}
 
-	// this is blocking operation, potentially can be optimized
-	m.peerStore.PeerConnClose(mp.peerCfg.PublicKey)
+		if m.shouldDeferIdleForHA(peerIDs, mp.peerCfg.PublicKey) {
+			mp.peerCfg.Log.Infof("defer inactivity due to active HA group peers")
+			continue
+		}
 
-	mp.peerCfg.Log.Infof("start activity monitor")
+		mp.peerCfg.Log.Infof("connection timed out")
 
-	mp.expectedWatcher = watcherActivity
+		// this is blocking operation, potentially can be optimized
+		m.peerStore.PeerConnIdle(mp.peerCfg.PublicKey)
 
-	// just in case free up
-	m.inactivityMonitors[peerConnID].PauseTimer()
+		mp.expectedWatcher = watcherActivity
 
-	if err := m.activityManager.MonitorPeerActivity(*mp.peerCfg); err != nil {
-		mp.peerCfg.Log.Errorf("failed to create activity monitor: %v", err)
-		return
+		m.inactivityManager.RemovePeer(mp.peerCfg.PublicKey)
+
+		mp.peerCfg.Log.Infof("start activity monitor")
+
+		if err := m.activityManager.MonitorPeerActivity(*mp.peerCfg); err != nil {
+			mp.peerCfg.Log.Errorf("failed to create activity monitor: %v", err)
+			continue
+		}
 	}
 }
-
-func (m *Manager) onPeerConnected(peerConnID peerid.ConnID) {
-	m.managedPeersMu.Lock()
-	defer m.managedPeersMu.Unlock()
-
-	mp, ok := m.managedPeersByConnID[peerConnID]
-	if !ok {
-		return
-	}
-
-	if mp.expectedWatcher != watcherInactivity {
-		return
-	}
-
-	iw, ok := m.inactivityMonitors[mp.peerCfg.PeerConnID]
-	if !ok {
-		mp.peerCfg.Log.Errorf("inactivity monitor not found for peer")
-		return
-	}
-
-	mp.peerCfg.Log.Infof("peer connected, pausing inactivity monitor while connection is not disconnected")
-	iw.PauseTimer()
-}
-
-func (m *Manager) onPeerDisconnected(peerConnID peerid.ConnID) {
-	m.managedPeersMu.Lock()
-	defer m.managedPeersMu.Unlock()
-
-	mp, ok := m.managedPeersByConnID[peerConnID]
-	if !ok {
-		return
-	}
-
-	if mp.expectedWatcher != watcherInactivity {
-		return
-	}
-
-	iw, ok := m.inactivityMonitors[mp.peerCfg.PeerConnID]
-	if !ok {
-		return
-	}
-
-	mp.peerCfg.Log.Infof("reset inactivity monitor timer")
-	iw.ResetTimer()
-}