yss163com / coturn

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DSCP field set to zero when going through TURN server

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When I set a DSCP tag (by using googDscp constraint : true when setting up a 
peer connection), packets from client to TURN server are marked.

Differentiated Services Field: 0x88 (DSCP 0x22: Assured Forwarding 41; (...)
1000 10 .. = Differentiated Services Codepoint: Assured Forwarding 41 (0x22)

DSCP in packets after going through the server are set back to zero:
Differentiated Services Field: 0x00 (DSCP 0x00: Default; (...)
0000 00 .. = Differentiated Services Codepoint: Default (0x00)

On linux preferred behaviour is used mleaning that the outgoing value is set to 
the incoming value. But given my tests, this value is set to zero.

I have checked it on coturn 4.3.1.2 (Ubuntu server 14.04) and on turn-5766 
3.2.2.4 (Ubuntu server 12.04).


What version of the product are you using? On what operating system?


Please provide any additional information below.


Original issue reported on code.google.com by janczuko...@gmail.com on 3 Feb 2015 at 9:00

Original comment by mom040...@gmail.com on 9 Feb 2015 at 3:15

  • Changed state: Accepted
Fixed in 4.4.2.1

Original comment by mom040...@gmail.com on 9 Feb 2015 at 3:15

  • Changed state: Fixed