SVI/netbird
1
0
Fork 0
mirror of https://github.com/netbirdio/netbird.git synced 2026-07-27 16:32:34 -04:00
Code Issues 3.0k Packages Projects Releases 10 Wiki Activity

Network Policy does not limit Traffic to specified port #2460

New Issue
Open
opened 2025-11-20 07:10:04 -05:00 by saavagebueno · 5 comments
saavagebueno commented 2025-11-20 07:10:04 -05:00
Owner
Copy Link

Originally created by @philzett on GitHub (Nov 14, 2025).

Describe the problem

We want to limit Traffic from a Group of Peers to a specific port. But as soon as the policy is active, all traffic to the peer is allowed. When disabling the policy no traffic at all is allowed.

To Reproduce

Steps to reproduce the behavior:

  1. Created a Peergroup "Peers1"
  2. Created a Network "Network1" with a Ressource "Host1" (10.12.0.195) and a Routing Peer "RoutingPeer1" (Masquerading enabled). We also use this routing peer for other traffic.
  3. We created a policy "Policy1" which allows Traffic from "Peers1" to "Network1" TCP 8080

Expected behavior

Access Host1 on tcp 8080.

Are you using NetBird Cloud?
No

Please specify whether you use NetBird Cloud or self-host NetBird's control plane.

NetBird version

netbird-mgmt version 0.59.13

Is any other VPN software installed?

no

Debug output

To help us resolve the problem, please attach the following anonymized status output

netbird status -dA

C:\Users\Peer1>netbird status -dA
Peers detail:

RoutingPeer1.anon-COGhR.domain:
NetBird IP: 100.124.1.91
Public key: csRgyV7kxNbe0ElZMiG2IessE568x+itzFK+YsksLTE=
Status: Connected
-- detail --
Connection type: Relayed
ICE candidate (Local/Remote): -/-
ICE candidate endpoints (Local/Remote): -/-
Relay server address: rels://netbird.anon-iWpe0.domain:443
Last connection update: 54 minutes, 35 seconds ago
Last WireGuard handshake: 19 seconds ago
Transfer status (received/sent) 290.6 KiB/288.8 KiB
Quantum resistance: false
Networks: 10.12.0.195/32
Latency: 0s

Events:
[INFO] SYSTEM (057ad8ba-357e-45a5-8ce2-3cac8b8a67ec)
Message: Network map updated
Time: 19 minutes, 53 seconds ago
[INFO] SYSTEM (663089d2-c3dc-4da3-a99e-3e6b0824893f)
Message: Network map updated
Time: 16 minutes, 4 seconds ago
[INFO] SYSTEM (9cb7c2e6-2d42-4092-9511-00c6e0ab77e1)
Message: Network map updated
Time: 14 minutes, 42 seconds ago
[INFO] SYSTEM (b41c24f7-9c57-442c-8c69-d8df34f8cec6)
Message: Network map updated
Time: 14 minutes, 1 seconds ago
[INFO] SYSTEM (d406f955-5785-4b48-bb5b-0ef5d888087c)
Message: Network map updated
Time: 12 minutes, 35 seconds ago
[INFO] SYSTEM (5e54a881-40bb-4918-8ca0-8b261c9d877b)
Message: Network map updated
Time: 22 seconds ago
OS: windows/amd64
Daemon version: 0.59.13
CLI version: 0.59.13
Profile: default
Management: Connected to https://netbird.anon-iWpe0.domain:443
Signal: Connected to https://netbird.anon-iwpe0.domain:10000/
Relays:
[stun:netbird.anon-iWpe0.domain:3478] is Available
[turn:netbird.anon-iWpe0.domain:3478?transport=udp] is Available
[rels://netbird.anon-iWpe0.domain:443] is Available
Nameservers:
[1.1.1.1:53, 1.0.0.1:53] for [.] is Available
[10.12.x.x:53, 172.x.x.x:53, 172.x.x.x:53] for [de.anon-iWpe0.domain, anon-aPYsh.domain, ivda.anon-kzL3G.domain, anon-KgGkb.domain, anon-QJBl0.domain] is Available
FQDN: Peer1.anon-COGhR.domain
NetBird IP: 100.124.78.124/16
Interface type: Userspace
Quantum resistance: false
Lazy connection: false
Networks: -
Forwarding rules: 0
Peers count: 2/20 Connected

Create and upload a debug bundle, and share the returned file key:

netbird debug for 1m -AS -U

Uploaded files are automatically deleted after 30 days.

Alternatively, create the file only and attach it here manually:

netbird debug for 1m -AS

Screenshots

If applicable, add screenshots to help explain your problem.

Additional context

Add any other context about the problem here.

Have you tried these troubleshooting steps?

  • [ x] Reviewed client troubleshooting (if applicable)
  • [ x] Checked for newer NetBird versions
  • [x ] Searched for similar issues on GitHub (including closed ones)
  • [x ] Restarted the NetBird client
  • [ x] Disabled other VPN software
  • [x ] Checked firewall settings
Originally created by @philzett on GitHub (Nov 14, 2025). **Describe the problem** We want to limit Traffic from a Group of Peers to a specific port. But as soon as the policy is active, all traffic to the peer is allowed. When disabling the policy no traffic at all is allowed. **To Reproduce** Steps to reproduce the behavior: 1. Created a Peergroup "Peers1" 2. Created a Network "Network1" with a Ressource "Host1" (10.12.0.195) and a Routing Peer "RoutingPeer1" (Masquerading enabled). We also use this routing peer for other traffic. 4. We created a policy "Policy1" which allows Traffic from "Peers1" to "Network1" TCP 8080 **Expected behavior** Access Host1 on tcp 8080. **Are you using NetBird Cloud?** No Please specify whether you use NetBird Cloud or self-host NetBird's control plane. **NetBird version** netbird-mgmt version 0.59.13 **Is any other VPN software installed?** no **Debug output** To help us resolve the problem, please attach the following anonymized status output netbird status -dA ----------------- C:\Users\Peer1>netbird status -dA Peers detail: RoutingPeer1.anon-COGhR.domain: NetBird IP: 100.124.1.91 Public key: csRgyV7kxNbe0ElZMiG2IessE568x+itzFK+YsksLTE= Status: Connected -- detail -- Connection type: Relayed ICE candidate (Local/Remote): -/- ICE candidate endpoints (Local/Remote): -/- Relay server address: rels://netbird.anon-iWpe0.domain:443 Last connection update: 54 minutes, 35 seconds ago Last WireGuard handshake: 19 seconds ago Transfer status (received/sent) 290.6 KiB/288.8 KiB Quantum resistance: false Networks: 10.12.0.195/32 Latency: 0s Events: [INFO] SYSTEM (057ad8ba-357e-45a5-8ce2-3cac8b8a67ec) Message: Network map updated Time: 19 minutes, 53 seconds ago [INFO] SYSTEM (663089d2-c3dc-4da3-a99e-3e6b0824893f) Message: Network map updated Time: 16 minutes, 4 seconds ago [INFO] SYSTEM (9cb7c2e6-2d42-4092-9511-00c6e0ab77e1) Message: Network map updated Time: 14 minutes, 42 seconds ago [INFO] SYSTEM (b41c24f7-9c57-442c-8c69-d8df34f8cec6) Message: Network map updated Time: 14 minutes, 1 seconds ago [INFO] SYSTEM (d406f955-5785-4b48-bb5b-0ef5d888087c) Message: Network map updated Time: 12 minutes, 35 seconds ago [INFO] SYSTEM (5e54a881-40bb-4918-8ca0-8b261c9d877b) Message: Network map updated Time: 22 seconds ago OS: windows/amd64 Daemon version: 0.59.13 CLI version: 0.59.13 Profile: default Management: Connected to [https://netbird.anon-iWpe0.domain:443](https://netbird.anon-iwpe0.domain/) Signal: Connected to https://netbird.anon-iwpe0.domain:10000/ Relays: [stun:netbird.anon-iWpe0.domain:3478] is Available [turn:netbird.anon-iWpe0.domain:3478?transport=udp] is Available [rels://netbird.anon-iWpe0.domain:443] is Available Nameservers: [1.1.1.1:53, 1.0.0.1:53] for [.] is Available [10.12.x.x:53, 172.x.x.x:53, 172.x.x.x:53] for [de.anon-iWpe0.domain, anon-aPYsh.domain, ivda.anon-kzL3G.domain, anon-KgGkb.domain, anon-QJBl0.domain] is Available FQDN: Peer1.anon-COGhR.domain NetBird IP: 100.124.78.124/16 Interface type: Userspace Quantum resistance: false Lazy connection: false Networks: - Forwarding rules: 0 Peers count: 2/20 Connected -------------------------------------------- Create and upload a debug bundle, and share the returned file key: netbird debug for 1m -AS -U *Uploaded files are automatically deleted after 30 days.* Alternatively, create the file only and attach it here manually: netbird debug for 1m -AS **Screenshots** If applicable, add screenshots to help explain your problem. **Additional context** Add any other context about the problem here. **Have you tried these troubleshooting steps?** - [ x] Reviewed [client troubleshooting](https://docs.netbird.io/how-to/troubleshooting-client) (if applicable) - [ x] Checked for newer NetBird versions - [x ] Searched for similar issues on GitHub (including closed ones) - [x ] Restarted the NetBird client - [ x] Disabled other VPN software - [x ] Checked firewall settings
saavagebueno added the triage-needed label 2025-11-20 07:10:04 -05:00
saavagebueno commented 2025-11-20 07:10:05 -05:00
Author
Owner
Copy Link

@lixmal commented on GitHub (Nov 14, 2025):

Can you provide a debug bundle from the routing peer please?

@lixmal commented on GitHub (Nov 14, 2025): Can you provide a debug bundle from the routing peer please?
saavagebueno commented 2025-11-20 07:10:05 -05:00
Author
Owner
Copy Link

@philzett commented on GitHub (Nov 17, 2025):

Hi, I uploaded with key:
d42cac7b2736a6b4537fce4c366a9292e41752f1352edbcd9653046d745349a9/35a1b8d7-77fd-480b-9e52-8ee59d13e1f8

@philzett commented on GitHub (Nov 17, 2025): Hi, I uploaded with key: d42cac7b2736a6b4537fce4c366a9292e41752f1352edbcd9653046d745349a9/35a1b8d7-77fd-480b-9e52-8ee59d13e1f8
saavagebueno commented 2025-11-20 07:10:05 -05:00
Author
Owner
Copy Link

@philzett commented on GitHub (Nov 17, 2025):

And another one after also updating routing peer to latest:
d42cac7b2736a6b4537fce4c366a9292e41752f1352edbcd9653046d745349a9/74cb1918-f3a3-4cc7-bfea-10386bf42a16

@philzett commented on GitHub (Nov 17, 2025): And another one after also updating routing peer to latest: d42cac7b2736a6b4537fce4c366a9292e41752f1352edbcd9653046d745349a9/74cb1918-f3a3-4cc7-bfea-10386bf42a16
saavagebueno commented 2025-11-20 07:10:06 -05:00
Author
Owner
Copy Link

@lixmal commented on GitHub (Nov 19, 2025):

You have a rule for 10.8.0.0/13 that allows ALL. That subnet includes 10.12.0.195

@lixmal commented on GitHub (Nov 19, 2025): You have a rule for `10.8.0.0/13` that allows `ALL`. That subnet includes `10.12.0.195`
saavagebueno commented 2025-11-20 07:10:06 -05:00
Author
Owner
Copy Link

@philzett commented on GitHub (Nov 20, 2025):

Thank you for investigating, but that rule should be for other clients. Also the Client limited to 10.12.0.195 can not reach any other address in 10.8.0.0/13.

It can only contact 10.12.0.195 as intended, but the limitation to Port TCP 8080 does not work

@philzett commented on GitHub (Nov 20, 2025): Thank you for investigating, but that rule should be for other clients. Also the Client limited to 10.12.0.195 can not reach any other address in 10.8.0.0/13. It can only contact 10.12.0.195 as intended, but the limitation to Port TCP 8080 does not work
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
2021 Q4
2022 Q1
2022 Q1
accessibility
acl
agent
agent
Android
Android
api
authentik
automation
azure
battery-usage
bug
cache
client
client-ui
cloud
cloud-only
cloudflare
community
compatibility
config-idp
config-issue
connection
contribution
coturn
cross-vpn
dashboard
data-usage
distribution
dns
docker
documentation
duplicate
enhancement
enhancement
event-stream
feature-request
freebsd
getting-started
go
good first issue
gui
help wanted
home-assistant
idp
inconsistency
integration
integrations
ios
ipv6
jwt
k8s
keycloak
linux
login
macos
management-service
missing-docs
mobile
moved-internal
needs-review
netbird-ui
networking
new-platform
nginx
notification
okta
openwrt
packaging
peer-management
peer-management
peer-management
performance
postgres
posture-checks
psk
pull-request
Mirrored from GitHub Pull Request
 question
refactor
relay
release
rfc
routes
security
security-related
self-hosting
server
signal
sleep-issue
ssh
ssl
status
store
synology
system-compatibility-issue
test-suite
third-party-integration
triage
triage-needed
troubleshooting
UX
waiting-feedback
windows
wontfix
zitadel
No Label triage-needed
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
saavagebueno
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: SVI/netbird#2460
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?