[OpenSIPS-Users] Downstream proxy rewriting contact header

[Bogdan-Andrei Iancu]

Hi Nauman,

That means that P1 sees the incoming INVITE (from opensips) as coming 
from behind a nat . So, do you do all nat-related fixes on opensips, 
like fixing Contact hdr, SDP ?

Regards,
Bogdan

Nauman Sulaiman wrote:
> Hi, using Opensips 1.6.2 we have the following setup.
>
> UA1----Opensips Proxy ------- P1 ------ P2 ------ UA2
>
> Proxy P1 is rewriting contact header sent by opensips in 180 and 200K response  to INVITE from UA2 to UA1. All proxies are record-routing. P1 seems to assume all requests are from behind NAT and rewrites the contact header with source IP ie that of Opensips proxy. The result is UA2 ACK is routed only to Opensips proxy and does not reach UA1. Is there any i can handle this in the Opensips proxy to account for behaviour of P1. 
>
> Thanks
>
>
>       
>
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-- 
Bogdan-Andrei Iancu
OpenSIPS Bootcamp
15 - 19 November 2010, Edison, New Jersey, USA
www.voice-system.ro