Any thought guys? Why contact address change in transit? is it normal? On Wed, Apr 8, 2015 at 12:12 PM, Satish Patel <satish....@gmail.com> wrote:
> Very interesting thing going on between opensips and my client [UA] > > Opensips sending following contact header to Client but on client side i > check it received different contact header, who is changing it? > > [UA]-----[Opensips]------[FS] > > UA - 173.xx.xx.xx.215 > Opensips - 182.xx.xx.164:5060 > FS - 182.xx.xx.162:5061 > > My UA behind the NAT and I have ALG disabled on router. > > > * [Opensips] sending following packet SDP OK 200 to [UA] > > 2015/04/08 07:42:22.820354 182.xx.xx.164:5060 -> 173.xx.xx.215:49152 > SIP/2.0 200 OK > Via: SIP/2.0/UDP 173.xx.xx.215:49152;received=173.xx.xx.215;rport=49152; > branch=z9hG4bKPjHB6245E6-SpIsEUs.kPIxxNAFMM0HTDo > Record-Route: <sip:182.xx.xx.164;lr;ftag=OdSDiepaL9YssVLqOv. > 3C82QrrsrrdUV;did=3fd.556edf93> > CSeq: 722 INVITE > Contact: <sip:1646327x...@182.xx.xx.162:5061;transport=udp> > > > > * [UA] Received following packet, look at Contact: it changed here. 162 > to 164. > > U 182.xx.xx.164:5060 -> 192.168.1.9:60895 > IP/2.0 200 OK. > Via: SIP/2.0/UDP 173.xx.xx.215:49152;received=192.168.1.9;rport=49152; > branch=z9hG4bKPjHB6245E6-SpIsEUs.kPIxxNAFMM0HTDo. > Record-Route: <sip:182.xx.xx.164:5060;lr;ftag=OdSDiepaL9YssVLqOv. > 3C82QrrsrrdUV;did=3fd.556edf93>. > CSeq: 722 INVITE. > Contact: <sip:1646327x...@182.xx.xx.164:5061;transport=udp>. >
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