Interactive Connectivity Establishment (ICE) could be of some interest to you.
http://tools.ietf.org/html/draft-ietf-mmusic-ice-19 -Arun On Tue, Dec 30, 2008 at 6:37 AM, Serbang, Nabam (Nabam) <nserb...@avaya.com>wrote: > > Hi all, > > Say I have two proxies p1 and p2. > > U1 is a UA resistered on p1 and U2 is an another UA registered on p2. > Due to certain scenario, is it ever likely that U1 and U2's ip address > will ever be same ? > Because P1 and P2 will be resolving the IP address for u1 and u2, > > Even if both u1 and u2 ip are different, how RTP packet is going to be > delivered between two UAs' specially in NATed scenario. > I'm asking this question because proxy p2 is resolving ip address for > SIP message and RTP packet is supposed to be end-point to end-point, If > I'm right. > So how u1 knows where to send RTP packet. Usually it will send to > address present in Contact header. But in this case content in Contact > header field will not necessarily be an IP of u2. > > > I wish somebody tell me bit detail or give me some reference. I have > gone through rfc3581 but I didn't find answer for my query there. > > > Thank you in advance. > > Thanks and regards > Nabam Serbang > > > > _______________________________________________ > Sip-implementors mailing list > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
