[OpenSIPS-Users] Contact - private IP problem

[Bogdan-Andrei Iancu]

Hi Nauman,

Flavio's book shows you how to handle registrations for local processing 
(local registrar) and not for the case where you forward the REGISTER to 
another registrar server...

So, what you need to do is (as for the other forwarded/relayed requests) 
to call the fix_nated_contact() for the REGISTER too.

Regards,
Bogdan

Nauman Sulaiman wrote:
> Hi, we are using OpenSIPS 1.6.2 as an outbound proxy, we have registered with Voipfone to test but the same problem occurs with other Voip providers
> Once registered we can't receive incoming calls, if we use STUN on the UAC then we are ok. However we would prefer to handle the nat traversal on the proxy. We have implemented all the code in Flavio's book.
>
> However the contact header sent from the proxy to the Voipfone server has a private ip although it has the nat=yes appended. So something is working please see REGISTER trace below.
>
> We think we are missing something but unsure what.
>
> UAC->Proxy
>
> REGISTER sip:voipfone.co.uk SIP/2.0.
> Via: SIP/2.0/UDP 192.168.0.2;rport;branch=z9hG4bKeyaZHZ6DrXptj.
> Max-Forwards: 70.
> From: <sip:30146027 at voipfone.co.uk>;tag=44U5mK3gB9ZvH.
> To: <sip:30146027 at voipfone.co.uk>.
> Call-ID: 102ce92b-166c-122e-a99f-37fea39c3827.
> CSeq: 134125887 REGISTER.
> Contact: <sip:30146027 at 192.168.0.2:5060>.
> Expires: 600.
> User-Agent: 
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, NOTIFY.
> Supported: path.
> Authorization: Digest username="30146027", realm="asterisk", nonce="hhvuahjm", algorithm=MD5, uri="sip:voipfone.co.uk", response="4d8dbfef$
> Content-Length: 0.
> .
>
> Proxy->Voipfone
>
> REGISTER sip:voipfone.co.uk SIP/2.0.
> Via: SIP/2.0/UDP 178.235.138.190;branch=z9hG4bK23c.505fb9b2.0.
> Via: SIP/2.0/UDP 192.168.0.2;received=88.148.7.122;rport=5060;branch=z9hG4bKeyaZHZ6DrXptj.
> Max-Forwards: 69.
> From: <sip:30146027 at voipfone.co.uk>;tag=44U5mK3gB9ZvH.
> To: <sip:30146027 at voipfone.co.uk>.
> Call-ID: 102ce92b-166c-122e-a99f-37fea39c3827.
> CSeq: 134125887 REGISTER.
> Contact: <sip:30146027 at 192.168.0.2:5060;nat=yes>.
> Expires: 600.
> User-Agent: 
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, NOTIFY.
> Supported: path.
> Authorization: Digest username="30146027", realm="asterisk", nonce="hhvuahjm", algorithm=MD5, uri="sip:voipfone.co.uk", response="4d8dbfef$
> Content-Length: 0.
>
> Voipfone->Proxy
>
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP 178.235.138.190;branch=z9hG4bK23c.505fb9b2.0;received=178.235.138.190;rport=5060.
> Record-Route: <sip:195.189.173.10:5060;lr=on>.
> Via: SIP/2.0/UDP 192.168.0.2;received=88.148.7.122;rport=5060;branch=z9hG4bKeyaZHZ6DrXptj.
> From: <sip:30146027 at voipfone.co.uk>;tag=44U5mK3gB9ZvH.
> To: <sip:30146027 at voipfone.co.uk>.
> Call-ID: 102ce92b-166c-122e-a99f-37fea39c3827.
> CSeq: 134125887 REGISTER.
> Contact: <sip:30146027 at 192.168.0.2:5060;nat=yes>;expires=60.
> Expires: 60.
> Date: Fri, 30 Jul 2010 15:16:15 GMT.
> Min-Expires: 60.
> User-Agent: Voipfone.
> Content-Length: 0.
>
>  
>
>
>
>       
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>   


-- 
Bogdan-Andrei Iancu
OpenSIPS Bootcamp
20 - 24 September 2010, Frankfurt, Germany
www.voice-system.ro