Is there a way to change the branch parameter in any of the Via headers in an INVITE? I am getting a 482 loop detected which I think is due to the same branch parameter in two requests.
Thanks,
Scott
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Hi Scott,
playing with the VIA branch parameter is not something you should try - you will brake transaction matching on downstream proxies.
maybe you can post a network dump to try to see what the problem is and if there are any solutions.
regards, bogdan
Scott MacGregor wrote:
Is there a way to change the branch parameter in any of the Via headers in an INVITE? I am getting a 482 loop detected which I think is due to the same branch parameter in two requests.
Thanks,
Scott
__________________________________________ Yahoo! DSL – Something to write home about. Just $16.99/mo. or less. dsl.yahoo.com
Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
Bogdan, thanks I had a feeling the VIA branch was off limits. Following is a network dump that shows the loop detect response from sip.broadvoice.com which is the PSTN gateway. I assumed the problem was due to the VIA 1 branch being the same before and after authentication, but I'm not certain.
Thanks,
15:02:21.270625 IP sip.client.5060 > sip.openser.com.5060: UDP, length 781 E..).[..u..H...>..C$........INVITE sip:15085551212@voip.company.edu SIP/2.0 Via: SIP/2.0/UDP 192.168.0.127:23954;rport;branch=z9hG4bK9BCC444A092044218C01377C79CA1078 From: SER User sip:3021@voip.company.edu;tag=3677179691 To: sip:15085551212@voip.company.edu Contact: sip:3021@192.168.0.127:23954 Call-ID: BC74A63E-99AE-49B1-832F-B951AB522D03@192.168.0.240 CSeq: 49363 INVITE Max-Forwards: 70 Content-Type: application/sdp User-Agent: X-Lite release 1103m Content-Length: 302
v=0 o=3021 3736209468 3736209656 IN IP4 192.168.0.127 s=X-Lite c=IN IP4 192.168.0.127 t=0 0 m=audio 24254 RTP/AVP 0 8 3 98 97 101 a=rtpmap:0 pcmu/8000 a=rtpmap:8 pcma/8000 a=rtpmap:3 gsm/8000 a=rtpmap:98 iLBC/8000 a=rtpmap:97 speex/8000 a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
15:02:21.272266 IP sip.openser.com.5060 > sip.client.5060: UDP, length 615 E.....@.@..9..C$...>.....o[.SIP/2.0 100 trying -- your call is important to us Via: SIP/2.0/UDP 192.168.0.127:23954;rport=5060;branch=z9hG4bK9BCC444A092044218C01377C79CA1078 From: SER User sip:3021@voip.company.edu;tag=3677179691 To: sip:15085551212@voip.company.edu Call-ID: BC74A63E-99AE-49B1-832F-B951AB522D03@192.168.0.240 CSeq: 49363 INVITE Server: OpenSer (1.1.0-dev3 (i386/linux)) Content-Length: 0 Warning: 392 134.241.67.36:5060 "Noisy feedback tells: pid=12809 req_src_ip=192.168.0.127 req_src_port=5060 in_uri=sip:15085551212@voip.company.edu out_uri=sip:15085551212@sip.broadvoice.com:5060 via_cnt==1"
15:02:21.272449 IP sip.openser.com.5060 > sip.broadvoice.com.5060: UDP, length 942 E.....@.@.....C$..........a.INVITE sip:15085551212@sip.broadvoice.com:5060 SIP/2.0 Record-Route: sip:134.241.67.36;ftag=3677179691;lr=on Via: SIP/2.0/UDP 134.241.67.36;branch=z9hG4bK38c8.b8c634d5.0 Via: SIP/2.0/UDP 192.168.0.127:23954;rport=5060;branch=z9hG4bK9BCC444A092044218C01377C79CA1078 From: SER User sip:5175133123@sip.broadvoice.com;tag=3677179691 To: sip:15085551212@voip.company.edu Contact: sip:3021@192.168.0.127:23954 Call-ID: BC74A63E-99AE-49B1-832F-B951AB522D03@192.168.0.240 CSeq: 49363 INVITE Max-Forwards: 69 Content-Type: application/sdp User-Agent: X-Lite release 1103m Content-Length: 302 P-hint: usrloc applied
v=0 o=3021 3736209468 3736209656 IN IP4 192.168.0.127 s=X-Lite c=IN IP4 192.168.0.127 t=0 0 m=audio 24254 RTP/AVP 0 8 3 98 97 101 a=rtpmap:0 pcmu/8000 a=rtpmap:8 pcma/8000 a=rtpmap:3 gsm/8000 a=rtpmap:98 iLBC/8000 a=rtpmap:97 speex/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15
15:02:21.312439 IP sip.broadvoice.com.5060 > sip.openser.com.5060: UDP, length 377 E.......8.........C$........SIP/2.0 100 Trying Via: SIP/2.0/UDP 134.241.67.36;branch=z9hG4bK38c8.b8c634d5.0 Via: SIP/2.0/UDP 192.168.0.127:23954;rport=5060;branch=z9hG4bK9BCC444A092044218C01377C79CA1078 From: SER User sip:5175133123@sip.broadvoice.com;tag=3677179691 To: sip:15085551212@voip.company.edu Call-ID: BC74A63E-99AE-49B1-832F-B951AB522D03@192.168.0.240 CSeq: 49363 INVITE
15:02:21.323308 IP sip.broadvoice.com.5060 > sip.openser.com.5060: UDP, length 498 E.......8..+......C$........SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 134.241.67.36;branch=z9hG4bK38c8.b8c634d5.0 Via: SIP/2.0/UDP 192.168.0.127:23954;rport=5060;branch=z9hG4bK9BCC444A092044218C01377C79CA1078 From: SER User sip:5175133123@sip.broadvoice.com;tag=3677179691 To: sip:15085551212@voip.company.edu;tag=SD38i6c99- Call-ID: BC74A63E-99AE-49B1-832F-B951AB522D03@192.168.0.240 CSeq: 49363 INVITE WWW-Authenticate: DIGEST realm="BroadWorks",algorithm=MD5,nonce="1136923341303" Content-Length: 0
15:02:21.323644 IP sip.openser.com.5060 > sip.broadvoice.com.5060: UDP, length 385 E.....@.@..!..C$.........._.ACK sip:15085551212@sip.broadvoice.com:5060 SIP/2.0 Via: SIP/2.0/UDP 134.241.67.36;branch=z9hG4bK38c8.b8c634d5.0 From: SER User sip:3021@voip.company.edu;tag=3677179691 Call-ID: BC74A63E-99AE-49B1-832F-B951AB522D03@192.168.0.240 To: sip:15085551212@voip.company.edu;tag=SD38i6c99- CSeq: 49363 ACK User-Agent: OpenSer (1.1.0-dev3 (i386/linux)) Content-Length: 0
15:02:21.324301 IP sip.openser.com.5060 > sip.broadvoice.com.5060: UDP, length 1139 E.....@.@.....C$.........{b.INVITE sip:15085551212@sip.broadvoice.com:5060 SIP/2.0 Record-Route: sip:134.241.67.36;ftag=3677179691;lr=on Via: SIP/2.0/UDP 134.241.67.36;branch=z9hG4bK38c8.b8c634d5.1 Via: SIP/2.0/UDP 192.168.0.127:23954;rport=5060;branch=z9hG4bK9BCC444A092044218C01377C79CA1078 From: SER User sip:5175133123@sip.broadvoice.com;tag=3677179691 To: sip:15085551212@voip.company.edu Contact: sip:3021@192.168.0.127:23954 Call-ID: BC74A63E-99AE-49B1-832F-B951AB522D03@192.168.0.240 CSeq: 49363 INVITE Max-Forwards: 69 Content-Type: application/sdp User-Agent: X-Lite release 1103m Content-Length: 302 P-hint: usrloc applied Authorization: Digest username="5175133123", realm="BroadWorks", nonce="1136923341303", uri="sip:15085551212@sip.broadvoice.com:5060", response="df5216891db0aaaa7e006ef408dce50e", algorithm="MD5"
v=0 o=3021 3736209468 3736209656 IN IP4 192.168.0.127 s=X-Lite c=IN IP4 192.168.0.127 t=0 0 m=audio 24254 RTP/AVP 0 8 3 98 97 101 a=rtpmap:0 pcmu/8000 a=rtpmap:8 pcma/8000 a=rtpmap:3 gsm/8000 a=rtpmap:98 iLBC/8000 a=rtpmap:97 speex/8000 a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
15:02:21.361036 IP sip.broadvoice.com.5060 > sip.openser.com.5060: UDP, length 377 E.......8.........C$........SIP/2.0 100 Trying Via: SIP/2.0/UDP 134.241.67.36;branch=z9hG4bK38c8.b8c634d5.1 Via: SIP/2.0/UDP 192.168.0.127:23954;rport=5060;branch=z9hG4bK9BCC444A092044218C01377C79CA1078 From: SER User sip:5175133123@sip.broadvoice.com;tag=3677179691 To: sip:15085551212@voip.company.edu Call-ID: BC74A63E-99AE-49B1-832F-B951AB522D03@192.168.0.240 CSeq: 49363 INVITE
15:02:21.367782 IP sip.broadvoice.com.5060 > sip.openser.com.5060: UDP, length 441 E.......8........C$......{ SIP/2.0 482 Loop detected Via: SIP/2.0/UDP 134.241.67.36;branch=z9hG4bK38c8.b8c634d5.1 Via: SIP/2.0/UDP 192.168.0.127:23954;rport=5060;branch=z9hG4bK9BCC444A092044218C01377C79CA1078 From: SER User sip:5175133123@sip.broadvoice.com;tag=3677179691 To: sip:15085551212@voip.company.edu;tag=SD38i6c99-140264986-1136923341349 Call-ID: BC74A63E-99AE-49B1-832F-B951AB522D03@192.168.0.240 CSeq: 49363 INVITE Content-Length: 0
On 1/10/06, Bogdan-Andrei Iancu bogdan@voice-system.ro wrote:
Hi Scott,
playing with the VIA branch parameter is not something you should try - you will brake transaction matching on downstream proxies.
maybe you can post a network dump to try to see what the problem is and if there are any solutions.
regards, bogdan
Scott MacGregor wrote:
Is there a way to change the branch parameter in any of the Via headers in an INVITE? I am getting a 482 loop detected which I think is due to the same branch parameter in two requests.
Thanks,
Scott
Yahoo! DSL – Something to write home about. Just $16.99/mo. or less. dsl.yahoo.com
Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users
-- Scott MacGregor
-
Bogdan-Andrei Iancu -
Scott MacGregor -
Scott MacGregor