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</o:shapelayout></xml><![endif]--></head><body lang=NO-BOK link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>I’m using the B2BUA module for top hiding. The client connects to us through NAT. He got two servers: one for call handling(.19) and one proxy(.20).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The problem seems to be that opensips (1.6.4) appends received=x.x.x.x to the wrong Via-header part when using the B2BUA module. Without everything is OK.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>See my trace:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>It should be:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/TCP 10.3.8.20:5060;branch=z9hG4bK94c1e03fce37b2c400d363ade;received=80.239.13.209, SIP/2.0/TCP 10.3.8.19:5062;branch=z9hG4bKf047356212106fe69a90eb0bf<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>not:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/TCP 10.3.8.20:5060;branch=z9hG4bK94c1e03fce37b2c400d363ade, SIP/2.0/TCP 10.3.8.19:5062;branch=z9hG4bKf047356212106fe69a90eb0bf;received=80.239.13.209<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>when 10.3.8.20 is the box we’re communicating with?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>80.239.13.209 is the customer’s external ip which we receive data from. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>It seems like 10.3.8.20 forwards the request to 80.239.13.209 instead of 10.3.18.19 when we’re sending replies.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal>INVITE sip:48485858@85.19.212.36;transport=tcp SIP/2.0<o:p></o:p></p><p class=MsoNormal><span lang=EN-US>To: <sip:48485858@10.3.8.20:5060><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>From: "Unknown" <sip:38531300@dialer2.krs>;tag=23221<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/TCP 10.3.8.20:5060;branch=z9hG4bK94c1e03fce37b2c400d363ade, SIP/2.0/TCP 10.3.8.19:5062;branch=z9hG4bKf047356212106fe69a90eb0bf<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Call-ID: ac6d5d3fbe9f119fded83f223796e5a8@10.3.8.19<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>CSeq: 1 INVITE<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Contact: <sip:38531300@10.3.8.19:5062;transport=tcp><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Max-Forwards: 69<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>x-inin-crn: 1001083772;loc=Kristiansand;ms=NECIC4<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Supported: join, replaces<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>User-Agent: ININ-TsServer/3.11.11.12100<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, PRACK, REFER, SUBSCRIBE<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Accept: application/sdp<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Accept-Encoding: identity<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Content-Type: application/sdp<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Content-Length: 197<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Record-Route: <sip:10.3.8.20:5060;lr;transport=tcp><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>v=0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>o=ININ 3089718599 3089718600 IN IP4 10.3.8.19<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>s=Interaction<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>c=IN IP4 10.3.8.20<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>t=0 0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>m=audio 24094 RTP/AVP 8 101<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>a=rtpmap:8 PCMA/8000<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>a=rtpmap:101 telephone-event/8000<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>a=fmtp:101 0-15<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>SIP/2.0 100 Trying<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>To: <sip:48485858@10.3.8.20:5060><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>From: "Unknown" <sip:38531300@dialer2.krs>;tag=23221<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/TCP 10.3.8.20:5060;branch=z9hG4bK94c1e03fce37b2c400d363ade, SIP/2.0/TCP 10.3.8.19:5062;branch=z9hG4bKf047356212106fe69a90eb0bf;received=80.239.13.209<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Call-ID: ac6d5d3fbe9f119fded83f223796e5a8@10.3.8.19<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>CSeq: 1 INVITE<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Server: OpenSIPS (1.6.4-2-notls (x86_64/linux))<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Content-Length: 0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Best regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Morten Tryfoss<o:p></o:p></span></p></div></body></html>