I have a setup where a VLC player is playing (from time to time) an IP camera RTSP stream over a Network-to-network VPN connection, and that setup was working for many years (correct, many years ).
The problem is that after one of the upgrades, however the stream cannot be played correctly anymore - the stream freezes and just few frames per minute are displayed.
I “suspect” that the problem has appeared when QoS was introduced (around Core Uptade 137) but I’m NOT sure.
I did some tests with different devices (including a mobile phone) to play the same RTSP camera stream and the result is:
- RTSP stream is played correctly when both devices (vlc player and the camera) are on the same lan
- RTSP stream is freezing (or just showing 2-3 frames per minute) when RTSP is going through ipfire (tested with N2N connection, road warrior VPN connections and from green to orange).
Based on that I have a question - How can I test if ipfire is blocking (or not forwarding correctly) the RTSP traffic or not?
Many thanks in advance!