Richard, well, the RURI of remote ACK has proxy IP address 10.200.70.100 so proxy thinks that previous hop was a strict router. I can't think of any workaround that would not be an ugly hack at the moment, though.
On 11/23/2012 03:24 AM, Richard Brady wrote: > Hi guys > > I have a multihomed Kamailio proxy sitting between two B2BUAs on > separate networks and record-routing all dialogs. > > The problem I have is that when one of these devices receives a 200 > OK, it does not populate the RURI of the ACK correctly. Instead of > taking it from the Contact header on the 200 OK, it uses the user part > from the Contact header and sets the domain to the proxy IP. It then > also populates the Route headers. > > The ACKs are below and the IPs are: > > 10.152.1.92:5060: UAC on outside > 10.200.70.100:5060: proxy outside interface > 192.168.242.100: proxy inside interface > 192.168.242.102: UAS on inside > > This the ACK message going into and coming out of the proxy. > > # U 10.152.1.92:5060 -> 10.200.70.100:5060 > ACK sip:natted_ua*9197**192.168.242.102*5080*udp@10.200.70.100 SIP/2.0. > Via: SIP/2.0/UDP 127.0.1.1:5060;branch=z9hG4bK-2280-1-5. > Route: > <sip:10.200.70.100;r2=on;lr=on;nat=yes>,<sip:192.168.242.100;r2=on;lr=on;nat=yes>. > From: sipp <sip:sipp@127.0.1.1:5060>;tag=2280SIPpTag001. > To: sut <sip:9197@10.200.70.100:5060>;tag=p0FaeQ1QUS9ae. > Call-ID: 1-2280@127.0.1.1. > CSeq: 1 ACK. > Contact: sip:sipp@127.0.1.1:5060. > Max-Forwards: 70. > Subject: Performance Test. > Content-Length: 0. > . > > # U 10.200.70.100:5060 -> 192.168.242.100:5060 > ACK sip:192.168.242.100;r2=on;lr=on;nat=yes SIP/2.0. > Via: SIP/2.0/UDP 10.200.70.100;branch=z9hG4bKcydzigwkX. > Via: SIP/2.0/UDP > 127.0.1.1:5060;rport=5060;received=10.152.1.92;branch=z9hG4bK-2280-1-5. > Route: . > From: sipp <sip:sipp@127.0.1.1:5060>;tag=2280SIPpTag001. > To: sut <sip:9197@10.200.70.100:5060>;tag=p0FaeQ1QUS9ae. > Call-ID: 1-2280@127.0.1.1. > CSeq: 1 ACK. > Contact: <sip:sipp@127.0.1.1:5060;alias=10.152.1.92~5060~1>. > Max-Forwards: 69. > Subject: Performance Test. > Content-Length: 0. > > So I am trying to understand why it is trying to relay to itself (I > have mhomed=1) and why it is rewriting the RURI as if it is a strict > router. > > Currently decode_contact() is disabled but enabling doesn't seem to > help. Unless there is a very specific place where it belongs. > > Any advice would be hugely appreciated. I can always paste logs / > configs / traces. > > Richard > > -- > Richard Brady > M: +44 (0)7771 623 348 > T: +44 (0)20 8144 8160 > E: rnbr...@gmail.com > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
