[GH-ISSUE #3579] I cannot access Docker bridge network services at home from the company network. #7538

New Issue

saavagebueno · 2026-08-05T01:13:25-04:00

saavagebueno commented

2026-08-05 01:13:25 -04:00

Originally created by @1018ji on GitHub (Mar 25, 2025).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/3579

Describe the problem

here are two machines:

One with IP 192.168.100.155

Another with IP 192.168.100.225

Network Setup:

I used the curl -fsSL https://pkgs.netbird.io/install.sh | sh command to install NetBird On 192.168.100.155.

NetBird is configured with Network Routers for 192.168.100.0/24.

No firewalls on either machine.

The company network has a P2P connection to 192.168.100.0/24 and can ping this subnet successfully.

Issue:
On 192.168.100.155: Installing Docker and running a container using Docker host with port 9000, i can access http://192.168.100.155:9000/ from the company network.

On 192.168.100.155: Running a Docker container in bridge mode with port 9000, i cannot access http://192.168.100.155:9000 from the company network.

However, from 192.68.100.225, you can access http://192.168.100.155:9000.

On 192.68.100.225: Running a Docker container in bridge mode with port 9000, you can access http://192.68.100.225:9000 from the company network.

To Reproduce

UP

Expected behavior

I used to be able to access http://192.168.100.155:9000/ directly from the company network.

Are you using NetBird Cloud?

NetBird Cloud

NetBird version

0.39.1

Is any other VPN software installed?

No

Debug output

 oec.netbird.cloud:
  NetBird IP: 100.84.77.237
  Public key: 24a5cU3lOfyFMQ77jhB0ZzCjhWv46LjE/dZ6JuI/QEo=
  Status: Connected
  -- detail --
  Connection type: P2P
  ICE candidate (Local/Remote): srflx/srflx
  ICE candidate endpoints (Local/Remote): 198.51.100.0:15379/198.51.100.1:15468
  Relay server address: rels://streamline-ap-northeast-1a.relay.netbird.io:443
  Last connection update: 15 minutes, 9 seconds ago
  Last WireGuard handshake: 47 seconds ago
  Transfer status (received/sent) 7.0 MiB/1.8 MiB
  Quantum resistance: false
  Networks: 192.168.100.0/24
  Latency: 57.154019ms

Events:
  [INFO] SYSTEM (5a936d93-52ab-4515-9a07-b3311707e99f)
    Message: Network map updated
    Time: 1 hour, 9 minutes ago
  [INFO] SYSTEM (16e6f331-197d-46bd-b68f-62f0cecadd39)
    Message: Network map updated
    Time: 1 hour, 9 minutes ago
  [INFO] SYSTEM (9c7bb348-8229-40cd-a248-383556dc4274)
    Message: Network map updated
    Time: 1 hour, 8 minutes ago
  [INFO] SYSTEM (3914860e-350e-42f0-ae72-26bd423dbd12)
    Message: Network map updated
    Time: 15 minutes, 11 seconds ago
OS: darwin/amd64
Daemon version: 0.39.1
CLI version: 0.39.1
Management: Connected to https://api.netbird.io:443
Signal: Connected to https://signal.netbird.io:443
Relays:
  [stun:stun.netbird.io:5555] is Available
  [turns:turn.netbird.io:443?transport=tcp] is Available
  [rels://streamline-ap-northeast-1a.relay.netbird.io:443] is Available
Nameservers:
FQDN: lf-0101000594.netbird.cloud
NetBird IP: 100.84.150.213/16
Interface type: Userspace
Quantum resistance: false
Networks: -
Forwarding rules: 0
Peers count: 1/1 Connected

Screenshots

No

Additional context

No

Have you tried these troubleshooting steps?

Checked for newer NetBird versions
Searched for similar issues on GitHub (including closed ones)
Restarted the NetBird client
Disabled other VPN software
Checked firewall settings

Originally created by @1018ji on GitHub (Mar 25, 2025). Original GitHub issue: https://github.com/netbirdio/netbird/issues/3579 **Describe the problem** here are two machines: One with IP 192.168.100.155 Another with IP 192.168.100.225 Network Setup: I used the `curl -fsSL https://pkgs.netbird.io/install.sh | sh` command to install NetBird On 192.168.100.155. NetBird is configured with Network Routers for 192.168.100.0/24. No firewalls on either machine. The company network has a P2P connection to 192.168.100.0/24 and can ping this subnet successfully. Issue: On 192.168.100.155: Installing Docker and running a container using Docker host with port 9000, i can access http://192.168.100.155:9000/ from the company network. On 192.168.100.155: Running a Docker container in bridge mode with port 9000, i cannot access http://192.168.100.155:9000 from the company network. However, from 192.68.100.225, you can access http://192.168.100.155:9000. On 192.68.100.225: Running a Docker container in bridge mode with port 9000, you can access http://192.68.100.225:9000 from the company network. **To Reproduce** UP **Expected behavior** I used to be able to access http://192.168.100.155:9000/ directly from the company network. **Are you using NetBird Cloud?** NetBird Cloud **NetBird version** `0.39.1` **Is any other VPN software installed?** No **Debug output** ```Peers detail: oec.netbird.cloud: NetBird IP: 100.84.77.237 Public key: 24a5cU3lOfyFMQ77jhB0ZzCjhWv46LjE/dZ6JuI/QEo= Status: Connected -- detail -- Connection type: P2P ICE candidate (Local/Remote): srflx/srflx ICE candidate endpoints (Local/Remote): 198.51.100.0:15379/198.51.100.1:15468 Relay server address: rels://streamline-ap-northeast-1a.relay.netbird.io:443 Last connection update: 15 minutes, 9 seconds ago Last WireGuard handshake: 47 seconds ago Transfer status (received/sent) 7.0 MiB/1.8 MiB Quantum resistance: false Networks: 192.168.100.0/24 Latency: 57.154019ms Events: [INFO] SYSTEM (5a936d93-52ab-4515-9a07-b3311707e99f) Message: Network map updated Time: 1 hour, 9 minutes ago [INFO] SYSTEM (16e6f331-197d-46bd-b68f-62f0cecadd39) Message: Network map updated Time: 1 hour, 9 minutes ago [INFO] SYSTEM (9c7bb348-8229-40cd-a248-383556dc4274) Message: Network map updated Time: 1 hour, 8 minutes ago [INFO] SYSTEM (3914860e-350e-42f0-ae72-26bd423dbd12) Message: Network map updated Time: 15 minutes, 11 seconds ago OS: darwin/amd64 Daemon version: 0.39.1 CLI version: 0.39.1 Management: Connected to https://api.netbird.io:443 Signal: Connected to https://signal.netbird.io:443 Relays: [stun:stun.netbird.io:5555] is Available [turns:turn.netbird.io:443?transport=tcp] is Available [rels://streamline-ap-northeast-1a.relay.netbird.io:443] is Available Nameservers: FQDN: lf-0101000594.netbird.cloud NetBird IP: 100.84.150.213/16 Interface type: Userspace Quantum resistance: false Networks: - Forwarding rules: 0 Peers count: 1/1 Connected ``` **Screenshots** No **Additional context** No **Have you tried these troubleshooting steps?** - - [x] Checked for newer NetBird versions - [ ] 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 2026-08-05 01:13:25 -04:00

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agent-network-setup-poc

dependabot/go_modules/aws-sdk-8f849ebaed

dependabot/github_actions/actions-a940c7c866

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dependabot/go_modules/gorm-2271c8195b

fix-login-needed-check

dependabot/go_modules/google.golang.org/grpc-1.82.1

fix/ui-gtk3-support

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peer-acl-multi-source

reverse-proxy-crowdsec-appsec

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client-local-metrics

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lazy-conn-rosenpass

dependabot/go_modules/github.com/gopacket/gopacket-1.7.0

dependabot/go_modules/goauthentik.io/api/v3-3.2026050.6

dependabot/go_modules/github.com/pires/go-proxyproto-0.15.0

dependabot/go_modules/github.com/jackc/pgx/v5-5.10.0

dependabot/go_modules/github.com/oapi-codegen/runtime-1.6.0

dependabot/go_modules/github.com/eko/gocache/lib/v4-4.2.4

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dependabot/go_modules/github.com/coreos/go-oidc/v3-3.20.0

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install-script-ui-dependencies

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windows-sleep-detector

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Reference: DYNR/netbird#7538