El Wednesday 31 October 2007 10:22:05 Konstantinos Koutsopoulos escribió: > The NATted device (client B) is behind a USR 9112, > the other machine (with openser and client B) is on an > academic LAN. The fact, however, is that tshark indicates > that the original sdp (from B) reaches port 5060 of openser > but the invite that is thereafter forwarded to client A > contains a modified sdp.
Not sure if I've understood, you said always "client B" XD I assume client B calls from NAT. Is it a softphone? Could you try with a softphone as B and do a ngrep o tshark in the **same** machine B is running and notate the INVITE message? Then you can do a ngrep in OpenSer and inspect the received INVITE form B. If the NAT has been fixed "by magic" then your router (in B LAN) does ALG's, so it rewrites the SIP message and replaces private IP with public IP and internal ports with NAT mapped external ports. -- Iñaki Baz Castillo [EMAIL PROTECTED] _______________________________________________ Users mailing list Users@lists.openser.org http://lists.openser.org/cgi-bin/mailman/listinfo/users