[asterisk-users] SIP TOS Not being set

[Philip Prindeville]

  On 7/25/10 7:54 PM, Nick Brown wrote:
> Hi All,
>
> Facing an issue at the moment with setting the TOS on packets - the documentation is a bit light, however is straightforward so unsure if this is a configuration issue or a bug.
>
> Following is set in sip.conf;
> tos_sip=CS3
> tos_audio=EF
>
> And is reflected in the CLI;
> IP ToS SIP:             CS3
> IP ToS RTP audio:       EF
>
> However a packet capture shows the following;
>
> RTP Packet looks good;
> 11:39:59.554679 IP (tos 0xb8, ttl  64, id 0, offset 0, flags [DF], proto: UDP (17), length: 200) LOCAL.26392>  REMOTE.8768: UDP, length 172
>
> Signaling Packet not so good;
> 11:39:59.633869 IP (tos 0x0, ttl  64, id 35957, offset 0, flags [none], proto: UDP (17), length: 479) LOCAL.sip>  REMOTE.sip: SIP, length: 451
>
> Seeing the same behavior on 1.4.28 and 1.6.2.9, separate servers. The packet captures are from the box itself so will not be affected by anything upstream.
>
> Anyone able to advise if they see the same problem?
>
> Cheers
> Nick.


Seeing it on trunk, as well:

20:39:46.084309 IP (tos 0x0, ttl  64, id 0, offset 0, flags [DF], proto: UDP (17), length: 200) 66.232.79.143.14572>  66.232.80.9.49152: [udp sum ok] UDP, length 172