WebRTC ICE handling differences between 1.18 and 1.20?

Florian Echtler floe at butterbrot.org
Thu Dec 8 15:38:23 UTC 2022 

Hello everyone,

I have a bit of a weird issue with my WebRTC setup. I have a server running on 
GStreamer 1.20, and various clients running on 1.18, 1.20, and browser platforms.

When I run the server and any combination of clients within the local network, 
everything works smoothly. Same when the both server and client(s) have a public IP.

However, when the clients are behind a NAT and the server is running on a public 
IP, then I can only make things work with the 1.20 client and/or browsers. The 
1.18 client gets stuck when starting the streams (specifically, the first video 
stream starts, but doesn't play, and the other video stream and the audio stream 
never start).

This obviously seems like a networking-related issue and I've had a closer look 
at the client-generated ICE candidates in the NAT scenario, but couldn't spot 
anything out of the ordinary. I also tried to disable IPv6 and to test with 
alternative STUN servers, but none of that seems to help.

Would anyone have further suggestions about how to debug this? I'm attaching the 
ICE candidates generated by the 1.18 and 1.20 clients here, both for the public 
IP and the local network scenario; the only obvious difference I can spot is 
that 1.18 generates way more candidates than 1.20.

Best, Florian
-- 
SENT FROM MY DEC VT50 TERMINAL
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[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:1 1 UDP 2013266431 192.168.178.53 56379 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.53 41125 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:1 2 UDP 2013266430 192.168.178.53 36360 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:2 2 TCP 1015021822 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:3 2 TCP 1010827518 192.168.178.53 50373 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:1 1 UDP 2013266431 192.168.178.53 38693 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.53 45209 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:1 2 UDP 2013266430 192.168.178.53 54832 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:2 2 TCP 1015021822 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:3 2 TCP 1010827518 192.168.178.53 45029 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:1 1 UDP 2013266431 192.168.178.53 37936 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.53 44967 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:1 2 UDP 2013266430 192.168.178.53 51349 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:2 2 TCP 1015021822 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:3 2 TCP 1010827518 192.168.178.53 35071 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:1 1 UDP 2013266431 192.168.178.53 38169 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.53 36819 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:1 2 UDP 2013266430 192.168.178.53 35948 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:2 2 TCP 1015021822 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:3 2 TCP 1010827518 192.168.178.53 54741 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:5 2 UDP 1677722110 85.191.191.33 1235 typ srflx raddr 192.168.178.53 rport 36360"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:6 2 TCP 847249662 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:7 2 TCP 843055358 85.191.191.33 50373 typ srflx raddr 192.168.178.53 rport 50373 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:5 1 UDP 1677722111 85.191.191.33 1033 typ srflx raddr 192.168.178.53 rport 56379"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 41125 typ srflx raddr 192.168.178.53 rport 41125 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:5 1 UDP 1677722111 85.191.191.33 1031 typ srflx raddr 192.168.178.53 rport 37936"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:5 2 UDP 1677722110 85.191.191.33 1436 typ srflx raddr 192.168.178.53 rport 54832"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:5 2 UDP 1677722110 85.191.191.33 1446 typ srflx raddr 192.168.178.53 rport 51349"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:5 1 UDP 1677722111 85.191.191.33 1478 typ srflx raddr 192.168.178.53 rport 38169"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 36819 typ srflx raddr 192.168.178.53 rport 36819 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:6 2 TCP 847249662 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:7 2 TCP 843055358 85.191.191.33 45029 typ srflx raddr 192.168.178.53 rport 45029 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:5 1 UDP 1677722111 85.191.191.33 1267 typ srflx raddr 192.168.178.53 rport 38693"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:5 2 UDP 1677722110 85.191.191.33 1459 typ srflx raddr 192.168.178.53 rport 35948"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:6 2 TCP 847249662 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:7 2 TCP 843055358 85.191.191.33 54741 typ srflx raddr 192.168.178.53 rport 54741 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 44967 typ srflx raddr 192.168.178.53 rport 44967 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:6 2 TCP 847249662 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:7 2 TCP 843055358 85.191.191.33 35071 typ srflx raddr 192.168.178.53 rport 35071 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 45209 typ srflx raddr 192.168.178.53 rport 45209 tcptype passive"}}
-------------- next part --------------
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:1 1 UDP 2015363327 192.168.178.20 59698 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.20 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.20 45611 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:1 1 UDP 2015363327 192.168.178.20 46547 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.20 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.20 35307 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:1 1 UDP 2015363327 192.168.178.20 44983 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.20 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.20 51895 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:1 1 UDP 2015363327 192.168.178.20 55503 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.20 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.20 51725 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:5 1 UDP 1679819007 85.191.191.33 1132 typ srflx raddr 192.168.178.20 rport 59698"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.20 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 45611 typ srflx raddr 192.168.178.20 rport 45611 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:5 1 UDP 1679819007 85.191.191.33 1355 typ srflx raddr 192.168.178.20 rport 46547"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.20 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 35307 typ srflx raddr 192.168.178.20 rport 35307 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:5 1 UDP 1679819007 85.191.191.33 1350 typ srflx raddr 192.168.178.20 rport 44983"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.20 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 51895 typ srflx raddr 192.168.178.20 rport 51895 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:5 1 UDP 1679819007 85.191.191.33 1063 typ srflx raddr 192.168.178.20 rport 55503"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.20 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 51725 typ srflx raddr 192.168.178.20 rport 51725 tcptype passive"}}
-------------- next part --------------
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:1 1 UDP 2013266431 192.168.178.53 58009 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.53 45415 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:1 2 UDP 2013266430 192.168.178.53 53683 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:2 2 TCP 1015021822 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:3 2 TCP 1010827518 192.168.178.53 39423 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:1 1 UDP 2013266431 192.168.178.53 59080 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.53 60223 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:1 2 UDP 2013266430 192.168.178.53 58454 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:2 2 TCP 1015021822 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:3 2 TCP 1010827518 192.168.178.53 54007 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:1 1 UDP 2013266431 192.168.178.53 45394 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.53 48867 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:1 2 UDP 2013266430 192.168.178.53 34419 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:2 2 TCP 1015021822 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:3 2 TCP 1010827518 192.168.178.53 41693 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:1 1 UDP 2013266431 192.168.178.53 52265 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.53 39743 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:1 2 UDP 2013266430 192.168.178.53 42201 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:2 2 TCP 1015021822 192.168.178.53 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:3 2 TCP 1010827518 192.168.178.53 46585 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:5 2 UDP 1677722110 85.191.191.33 1478 typ srflx raddr 192.168.178.53 rport 53683"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:6 2 TCP 847249662 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:7 2 TCP 843055358 85.191.191.33 39423 typ srflx raddr 192.168.178.53 rport 39423 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:5 1 UDP 1677722111 85.191.191.33 1050 typ srflx raddr 192.168.178.53 rport 58009"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 45415 typ srflx raddr 192.168.178.53 rport 45415 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:5 1 UDP 1677722111 85.191.191.33 1165 typ srflx raddr 192.168.178.53 rport 59080"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 60223 typ srflx raddr 192.168.178.53 rport 60223 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:5 2 UDP 1677722110 85.191.191.33 1077 typ srflx raddr 192.168.178.53 rport 34419"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:6 2 TCP 847249662 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:7 2 TCP 843055358 85.191.191.33 41693 typ srflx raddr 192.168.178.53 rport 41693 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:5 1 UDP 1677722111 85.191.191.33 1508 typ srflx raddr 192.168.178.53 rport 52265"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 39743 typ srflx raddr 192.168.178.53 rport 39743 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:5 2 UDP 1677722110 85.191.191.33 1235 typ srflx raddr 192.168.178.53 rport 42201"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:5 1 UDP 1677722111 85.191.191.33 1506 typ srflx raddr 192.168.178.53 rport 45394"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:6 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:7 1 TCP 843055359 85.191.191.33 48867 typ srflx raddr 192.168.178.53 rport 48867 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:5 2 UDP 1677722110 85.191.191.33 1505 typ srflx raddr 192.168.178.53 rport 58454"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:6 2 TCP 847249662 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:6 2 TCP 847249662 85.191.191.33 9 typ srflx raddr 192.168.178.53 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:7 2 TCP 843055358 85.191.191.33 46585 typ srflx raddr 192.168.178.53 rport 46585 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:7 2 TCP 843055358 85.191.191.33 54007 typ srflx raddr 192.168.178.53 rport 54007 tcptype passive"}}
-------------- next part --------------
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:1 1 UDP 2015363327 192.168.178.20 59992 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.20 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.20 47331 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:1 1 UDP 2015363327 192.168.178.20 49226 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.20 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.20 48167 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:1 1 UDP 2015363327 192.168.178.20 46798 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.20 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.20 46977 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:1 1 UDP 2015363327 192.168.178.20 43634 typ host"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:2 1 TCP 1015021823 192.168.178.20 9 typ host tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:3 1 TCP 1010827519 192.168.178.20 44549 typ host tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:4 1 UDP 1679819007 85.191.191.33 1249 typ srflx raddr 192.168.178.20 rport 59992"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:5 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.20 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 0, "candidate": "candidate:6 1 TCP 843055359 85.191.191.33 47331 typ srflx raddr 192.168.178.20 rport 47331 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:4 1 UDP 1679819007 85.191.191.33 1313 typ srflx raddr 192.168.178.20 rport 49226"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:5 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.20 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 1, "candidate": "candidate:6 1 TCP 843055359 85.191.191.33 48167 typ srflx raddr 192.168.178.20 rport 48167 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:4 1 UDP 1679819007 85.191.191.33 1118 typ srflx raddr 192.168.178.20 rport 46798"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:5 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.20 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 2, "candidate": "candidate:6 1 TCP 843055359 85.191.191.33 46977 typ srflx raddr 192.168.178.20 rport 46977 tcptype passive"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:4 1 UDP 1679819007 85.191.191.33 1470 typ srflx raddr 192.168.178.20 rport 43634"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:5 1 TCP 847249663 85.191.191.33 9 typ srflx raddr 192.168.178.20 rport 9 tcptype active"}}
[TRACE] Incoming ICE candidate: {"type": "ice", "data": {"sdpMLineIndex": 3, "candidate": "candidate:6 1 TCP 843055359 85.191.191.33 44549 typ srflx raddr 192.168.178.20 rport 44549 tcptype passive"}}
-------------- next part --------------
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