Second NIC for some Docker Container

[digitaldex]

Hello, I need help setting up a second Docker network that communicates externally via a separate network card in the UNRaid server.

 

My setup is as follows: I have various VLANs in my home network routed through pfSense. Network 10.11.12.0 is my default network with VLAN tag 10. Network 192.168.20.0 is a secured network that goes to the internet via a VPN provider, running over VLAN tag 20. The tagging is done via the switchport.

 

The Docker containers run smoothly over 10.11.12.0. However, I want some containers to access the internet via the VPN LAN. For this, I have set up a second network card in Unraid. I can access the Unraid dashboard via both IPs.

 

Network Settings:

 

 

Docker Settings:

 

 

When I select one of the custom network settings in the container settings, I can no longer reach the container.

 

 

Ideally, I would like a second internal Docker network that then performs NAT on my second network adapter.

[digitaldex]

no one with a hint?

[Vr2Io]

On 1/28/2024 at 12:01 AM, digitaldex said:

Ideally, I would like a second internal Docker network that then performs NAT on my second network adapter.

Unraid won't do NAT, you need a router gateway in 192.168.20.1 for accessing Internet for VLAN20. To access that container, client also need in same subnet & network.

Edited January 29 by Vr2Io