Problems with 2 networks in Docker Compose file

Traefik Traefik v2
1

Hi,

I'm trying to move to traefik to a new server. The old configuration that still works on my old server doesn't work on my new (Ubuntu 20.04 one):

The problem is with having traefik listen to two networks:

In my docker-compose.yml I have the following

    ports:
      - "80:80"
      - "443:443"
    networks:
      default:
        ipv4_address: 172.19.1.28
      net-external:
        ipv4_address: 192.168.11.28

I can connect to traefik from the docker host (tested by telnetting to port 80 on 172.19.1.28 and 192.168.11.68).

However, I can not connect to port 80 on the docker host machine (telnet docker-host.local 80 or connecting with a web browser doesn't work at all).

If I remove the 'net-external' network, this works. But if both are present, it doesn't work. In this case, the connection seems to 'hang' (no connection refused, but web browser / telnet just hangs)

Please help!

Thanks.