LAN DIscovery can't find server

[UnderEu]

Hi.

I have my own local server for a while and experience has been great, however I can't make client apps on my local network find my local server via LAN Discovery feature.
Server-side configuration is done, both the app and firewall; all clients are setup to connect manually, which is not a massive deal but it gets annoying to setup a "smart TV" by using the D-Pad to type, that's why I was trying to put LAN Discovery to work in the 1st place.

All apps hosted on my LAN are IPv6-only and I presume the server app is not doing its discovery magic via this protocol.


Application version: 0.19.9 Release

Where did you install the app from? Amazon Appstore

Device information: Amazon Fire TV Cube (3rd Generation)

Android version: Fire OS 7.7.1.4 (PS7714/5507)

Jellyfin server version: 10.11.11

[TheDreadPirate]

Jellyfin's service discovery is a "broadcast" on port 7359. The problem is that IPv6 does not support broadcasting and, therefore, service discovery does not work in an IPv6 only environment. Broadcasting, explicitly, only uses IPv4.

[UnderEu]

Jellyfin's service discovery is a "broadcast" on port 7359.  The problem is that IPv6 does not support broadcasting and, therefore, service discovery does not work in an IPv6 only environment.  Broadcasting, explicitly, only uses IPv4.

OK, makes sense.

Tks. for clarification.

[jrgrant]

Jellyfin's service discovery is a "broadcast" on port 7359.  The problem is that IPv6 does not support broadcasting and, therefore, service discovery does not work in an IPv6 only environment.  Broadcasting, explicitly, only uses IPv4.

Right, IPv6 has no "broadcast" address per se, but the functionality of the "all one's after the netmask" broadcast from IPv4 is replaced with a link local all nodes multicast address. That address is FE02::1
Seems like this might be a significant enhancement to the discovery algorithm. I know it's dangerous to suggest an enhancement without volunteering to provide the solution, but I'm not equipped

[TheDreadPirate]

When I say it is IPv4 only, I am not mincing words. Jellyfin only "broadcasts", which is an IPv4 only function. It just will not work in any way, shape, or form with IPv6.

And there are currently no plans to implement a multicast equivalent, which would work in IPv6.