Finally I’ve made it. At least it seems so. Openhab is running in bridge-mode, bound to nic1. I had to change my knx.things from route to tunnel. This is how it´s working now:
openhab.yml:
version: "3.7"
services:
# Openhab
openhab:
container_name: openhab
image: openhab/openhab:latest
restart: always
ports:
- 8080:8080
- 8443:8443
- 8101:8101
- 3671:3671
- 3671:3671/udp
- 5007:5007
- 1012:1012
volumes:
- /etc/localtime:/etc/localtime:ro
- /etc/timezone:/etc/timezone:ro
- /opt/openhab/addons:/openhab/addons
- /opt/openhab/conf:/openhab/conf
- /opt/openhab/userdata:/openhab/userdata
environment:
OPENHAB_HTTP_PORT: "8080"
OPENHAB_HTTPS_PORT: "8443"
EXTRA_JAVA_OPTS: "-Duser.timezone=Europe/Berlin"
networks:
default:
external:
name: openhab-net
knx.things:
Bridge knx:ip:bridge "Enertex Secure Router" [
type="TUNNEL",
ipAddress="192.168.178.200",
portNumber=3671,
useNAT=true,
localSourceAddr="0.0.0"
]