Connection to a webrtc stream over Wireguard

[eprouty]

Question

Hello, I have mediamtx running on a Pi5 with the default configuration and a cam section that works perfectly on my local network.

When connecting to serverip:8889/cam through wireguard VPN, running in an LXC on my Proxmox server, the webrtc connection always fails after the "checking" phase. When looking at the network debug tools all of the http calls are succeeding, so the tunnel is connecting to the instance fine.

The logs show the following:

Oct 30 19:57:15 mainsail mediamtx[4808]: 2024/10/30 19:57:15 INF [WebRTC] [session 5222d778] created by <wireguardip>:61614
Oct 30 19:57:17 mainsail mediamtx[4808]: 2024/10/30 19:57:17 INF [WebRTC] [session 3041c207] created by <wireguardip>:61620
Oct 30 19:57:25 mainsail mediamtx[4808]: 2024/10/30 19:57:25 INF [WebRTC] [session 5222d778] closed: deadline exceeded while waiting connection
Oct 30 19:57:27 mainsail mediamtx[4808]: 2024/10/30 19:57:27 INF [WebRTC] [session 3041c207] closed: deadline exceeded while waiting connection

To add to this, I know the tunnel is configured correctly because I can switch to using TCP for webrtc it works... although at significantly worse quality, and with sporadic disconnects, so I'm hoping to get UDP working over the VPN.

Any help is appreciated, thank you!

Server version: 1.9.3
Replication:

1. Setup default mediamtx.yml with a cam section
2. Setup wireguard VPN and connect a client through it
3. Try to connect to the webrtc endpoint.

[adzmailru]

First you need to see the wireguard settings. With the correct settings, all your ip addresses should ping each other.