12:17 p.m.
Hi,
I created a container that contains a service that is only listening for
tcp6 requests, so is IPv6 only. When starting the container rootless on
Fedora 36 with podman 4.1.0 I'm unable to connect to my service. However
when I start my service to listen just for tcp4 requests I can connect
to it using IPv4 and IPv6. So it looks like the port forwarding done by
podman always forwards the traffic as IPv4. Is that the correct? I could
not find any documentation on that. The problem looks however a bit like
https://github.com/containers/podman/issues/14491. That issue states
that there is a proxy (rootlessport) running that does the forwarding.
Are there more details available how this is done exactly?
Ideally I would like to be able to start a service that uses just tcp4
or tcp6 to only be accessible via tcp4 or tcp6. Podman should simply
keep the protocol when forwarding traffic and not translate it.
regards,
Hendrik