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<p class=MsoNormal>Anca,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m having the b2b crash at different moments now.
While the system seems relatively stable if I can get past the initial OK/ACKs,
I’m having what appears to be a problem generated by a to-tag with dashes
in it. For instance:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>(IPs/hostnames have been replaced by either (proxy) for our
front-end server or (b2bua) for the back-end b2b or (sip gateway) for our Cisco
gear)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>15:16:00.217293 IP (tos 0xb8, ttl 64, id 0, offset 0, flags
[DF], proto UDP (17), length 974) (proxy).5060 > (b2bua).5060: SIP, length:
946<o:p></o:p></p>
<p class=MsoNormal> SIP/2.0 200 OK<o:p></o:p></p>
<p class=MsoNormal> Via: SIP/2.0/UDP
(b2bua);branch=z9hG4bKc4d.78cf4eb3.0<o:p></o:p></p>
<p class=MsoNormal> From:
<sip:719xxx0449@(proxy)>;tag=9e0f6f7cd33d08ad3fd7dcf243da9165-d4dc<o:p></o:p></p>
<p class=MsoNormal> To: sip:719xxx1095@(proxy):5060;tag=2E32D030-2CB<o:p></o:p></p>
<p class=MsoNormal> Date: Sat, 21 Nov 2009 04:05:21 GMT<o:p></o:p></p>
<p class=MsoNormal> Call-ID: B2B.144.0.1258755349<o:p></o:p></p>
<p class=MsoNormal> Server: Cisco-SIPGateway/IOS-12.x<o:p></o:p></p>
<p class=MsoNormal> CSeq: 2 INVITE<o:p></o:p></p>
<p class=MsoNormal> Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK,
COMET, REFER, SUBSCRIBE, NOTIFY, INFO, UPDATE, REGISTER<o:p></o:p></p>
<p class=MsoNormal> Supported: replaces<o:p></o:p></p>
<p class=MsoNormal> Allow-Events: telephone-event<o:p></o:p></p>
<p class=MsoNormal> Contact: <sip:719xxx1095@(pstn gateway):5060><o:p></o:p></p>
<p class=MsoNormal> Record-Route:
<sip:(proxy);lr=on;ftag=9e0f6f7cd33d08ad3fd7dcf243da9165-d4dc;did=81d.b6260723><o:p></o:p></p>
<p class=MsoNormal> Content-Type: application/sdp<o:p></o:p></p>
<p class=MsoNormal> Content-Length: 244<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> v=0<o:p></o:p></p>
<p class=MsoNormal> o=CiscoSystemsSIP-GW-UserAgent 2487 1889 IN IP4
(pstn gateway)<o:p></o:p></p>
<p class=MsoNormal> s=SIP Call<o:p></o:p></p>
<p class=MsoNormal> c=IN IP4 (pstn gateway)<o:p></o:p></p>
<p class=MsoNormal> t=0 0<o:p></o:p></p>
<p class=MsoNormal> m=audio 18922 RTP/AVP 0 101<o:p></o:p></p>
<p class=MsoNormal> c=IN IP4 (pstn gateway)<o:p></o:p></p>
<p class=MsoNormal> a=rtpmap:0 PCMU/8000<o:p></o:p></p>
<p class=MsoNormal> a=rtpmap:101 telephone-event/8000<o:p></o:p></p>
<p class=MsoNormal> a=fmtp:101 0-15<o:p></o:p></p>
<p class=MsoNormal> a=ptime:20<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>15:16:00.217949 IP (tos 0x10, ttl 64, id 0, offset 0, flags
[DF], proto UDP (17), length 1015) (b2bua).5060 > (proxy).5060: SIP, length:
987<o:p></o:p></p>
<p class=MsoNormal> SIP/2.0 200 OK<o:p></o:p></p>
<p class=MsoNormal> Record-Route:
<sip:(proxy);lr=on;ftag=a31385f8c7bc6888o0;did=e25.e1d15c16;NAT=true><o:p></o:p></p>
<p class=MsoNormal> Via: SIP/2.0/UDP
(proxy);branch=z9hG4bKef3.ffc40151.0<o:p></o:p></p>
<p class=MsoNormal> Via: SIP/2.0/UDP
192.168.0.101:5060;rport=52434;received=174.22.143.40;branch=z9hG4bK-c024968<o:p></o:p></p>
<p class=MsoNormal> From: "719xxx0449"
<sip:719xxx0449@(proxy)>;tag=a31385f8c7bc6888o0<o:p></o:p></p>
<p class=MsoNormal> To: <sip:xxx1095@(proxy)>;tag=B2B.60.0.1258755349<o:p></o:p></p>
<p class=MsoNormal> Call-ID: 175b26b8-7cb3ec8@192.168.0.101<o:p></o:p></p>
<p class=MsoNormal> CSeq: 102 INVITE<o:p></o:p></p>
<p class=MsoNormal> Content-Type: application/sdp<o:p></o:p></p>
<p class=MsoNormal> Supported: replaces<o:p></o:p></p>
<p class=MsoNormal> Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK,
COMET, REFER, SUBSCRIBE, NOTIFY, INFO, UPDATE, REGISTER<o:p></o:p></p>
<p class=MsoNormal> Contact: <sip:opensips@(b2bua):5060><o:p></o:p></p>
<p class=MsoNormal> Server: OpenSIPS (1.6.1-notls (i386/linux))<o:p></o:p></p>
<p class=MsoNormal> Content-Length: 244<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> v=0<o:p></o:p></p>
<p class=MsoNormal> o=CiscoSystemsSIP-GW-UserAgent 2487 1889 IN IP4
(pstn gateway)<o:p></o:p></p>
<p class=MsoNormal> s=SIP Call<o:p></o:p></p>
<p class=MsoNormal> c=IN IP4 (pstn gateway)<o:p></o:p></p>
<p class=MsoNormal> t=0 0<o:p></o:p></p>
<p class=MsoNormal> m=audio 18922 RTP/AVP 0 101<o:p></o:p></p>
<p class=MsoNormal> c=IN IP4 (pstn gateway)<o:p></o:p></p>
<p class=MsoNormal> a=rtpmap:0 PCMU/8000<o:p></o:p></p>
<p class=MsoNormal> a=rtpmap:101 telephone-event/8000<o:p></o:p></p>
<p class=MsoNormal> a=fmtp:101 0-15<o:p></o:p></p>
<p class=MsoNormal> a=ptime:20<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>15:16:00.299687 IP (tos 0xb8, ttl 64, id 0, offset 0, flags
[DF], proto UDP (17), length 798) (proxy).5060 > (b2bua).5060: SIP, length:
770<o:p></o:p></p>
<p class=MsoNormal> ACK sip:opensips@(b2bua):5060 SIP/2.0<o:p></o:p></p>
<p class=MsoNormal> Via: SIP/2.0/UDP (proxy);branch=z9hG4bK-13770017<o:p></o:p></p>
<p class=MsoNormal> Via: SIP/2.0/UDP 192.168.0.101:5060;rport=52434;received=174.22.143.40;branch=z9hG4bK-13770017<o:p></o:p></p>
<p class=MsoNormal> From: "719xxx0449"
<sip:719xxx0449@(proxy)>;tag=a31385f8c7bc6888o0<o:p></o:p></p>
<p class=MsoNormal> To:
<sip:xxxx1095@(proxy)>;tag=B2B.60.0.1258755349<o:p></o:p></p>
<p class=MsoNormal> Call-ID: 175b26b8-7cb3ec8@192.168.0.101<o:p></o:p></p>
<p class=MsoNormal> CSeq: 102 ACK<o:p></o:p></p>
<p class=MsoNormal> Max-Forwards: 69<o:p></o:p></p>
<p class=MsoNormal> User-Agent: Linksys/SPA942-5.1.15(a)<o:p></o:p></p>
<p class=MsoNormal> Content-Length: 0<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>** OUTBOUND PACKET GENERATED BY B2B (note the From: tag,
and how it has a piece of the To: tag stuck in it,repeatedly.) **<o:p></o:p></p>
<p class=MsoNormal>15:16:00.299860 IP (tos 0x10, ttl 64, id 0, offset 0, flags
[DF], proto UDP (17), length 543) (b2bua).5060 > (proxy).5060: SIP, length:
515<o:p></o:p></p>
<p class=MsoNormal> ACK sip:719xxx1095@(pstn gateway):5060 SIP/2.0<o:p></o:p></p>
<p class=MsoNormal> Via: SIP/2.0/UDP
(b2bua);branch=z9hG4bKc4d.88cf4eb3.0<o:p></o:p></p>
<p class=MsoNormal> To:
<sip:719xxx1095@(proxy):5060>;tag=2E32D030-2CB<o:p></o:p></p>
<p class=MsoNormal> From: <-2CB<o:p></o:p></p>
<p class=MsoNormal> From: <-2CB<o:p></o:p></p>
<p class=MsoNormal> From: <-2CB<o:p></o:p></p>
<p class=MsoNormal> From>;tag=9e0f6f7cd33d08ad3fd7dcf243da9165-d4dc<o:p></o:p></p>
<p class=MsoNormal> CSeq: 2 ACK<o:p></o:p></p>
<p class=MsoNormal> Call-ID: m:5060>;tag=2E32D030<o:p></o:p></p>
<p class=MsoNormal> Route: <sip:(proxy);lr=on;ftag=9e0f6f7cd33d08ad3fd7dcf243da9165-d4dc;did=81d.b6260723><o:p></o:p></p>
<p class=MsoNormal> Content-Length: 0<o:p></o:p></p>
<p class=MsoNormal> User-Agent: OpenSIPS (1.6.1-notls (i386/linux))<o:p></o:p></p>
<p class=MsoNormal> Contact: <sip:opensips@(b2bua).5060><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>** The B2BUA Opensips instance crashes here **<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I honestly don’t have a big enough sampling of gear to
confirm this. I have some softphones, a few handsets, Asterisk, a bunch of
Cisco kit and a Covergence SBC I can talk to. The softphones and Asterisk work
great. The Cisco kit and Covergence both place dashes in their tags and while
speaking to this gear, the B2B crashes and produces the packet you see above.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Your thoughts?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>As always, I sure appreciate it.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Jeff K<o:p></o:p></p>
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