Running a Jellyfin server behind a gluetun container (bc IPTV). Everything works perfectly with one exception: multicast. The use case is DLNA; interoperability between the JF server and my home receiver (to listen to music).

I have the DLNA plugin installed. I also pass the FIREWALL_OUTBOUND_SUBNET variable in the docker-compose.

Gluetun docker-compose.yml is here. Relevent Jellyfin logs are here.

Anyone know how to make mDNS work?

Edit: spelling