To expose Docker host ports on Docker networks it is often enough to use qoomon/docker-host (and it may be necessary to add --network host):
docker run --restart always -d --name forwarder --cap-add=NET_ADMIN --cap-add=NET_RAW qoomon/docker-hostHowever, if an another image is interfering with firewall rules (or cannot grant NET_ADMIN or NET_RAW cabilities)
it may be necessary to tunnel the traffic with socat,
here an example for ssh:
docker run --restart always -d --name forwarder alpine/socat TCP4-LISTEN:22,fork,reuseaddr TCP4:host.docker.internal:22Note: On Linux, the following option might be necessary to be added to the command above: --add-host=host.docker.internal:host-gateway