2009/2/11 Bengt Werstén <bengt.wers...@enea.com>: > I have a problem with NAT usage. First I thought I needed STUN but the rport > thing did it so much better and now it works fine doing a register. The > connect fields looks perfect but the problem now is that the keep-alive > mechanism does not work.
The first OPTIONS is used to check that there is nothing fishy with NAT and SIP server. Unfortunately, it looks like there is something fishy here. > As I understand it Sofia-SIP send OPTIONS to itself to keep the NAT happy. > The problem is that both SIP (IMS actually) servers I have tested with reply > using a different source port as the sent to. I try to illustrate where is > goes wrong: > > Sofia SIP (from port X to port 5800) -> REGISTER -> NAT (from port Y to port > 5800) -> Server // Fine so far > > … Authentication and things > > Server (from port 5800 to port Y) -> 200 OK -> NAT (from port 5800 to port > X) -> Server // Fine so far > > Sofia SIP (from port X to port 5800) -> OPTIONS -> NAT (from port Y to port > 5800) -> Server // Fine so far > > Server (from port 5801 to port Y) -> 200 OK -> NAT (5801 is not 5800 so NAT > throws this away) > After a while Sofia-SIP prints: > > outbound(015D0100): FAILED to validate <sip:ROUTERIP:Y;transport=udp> > outbound(015D0100): FAILED with 408 Request Timeout > It there any workaround for this? I cannot change the NAT or SIP Server > behaviors. I really like it to work independent of SIP server assuming that > it supports rport. Assuming that you turn off the contact validation (AFAIK add "no-validate" to NUTAG_OUTBOUND()), can you get back responses from any other SIP requests but REGISTER? If yes, perhaps fiddling with OPTIONS would help, if no, you probably want to get better IMS... -- Pekka.Pessi mail at nokia.com ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Sofia-sip-devel mailing list Sofia-sip-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sofia-sip-devel
