[Spce-user] NGCP 2.6 - mis-routed replys after 180 ringing

Fri Oct 5 09:14:24 EDT 2012

Hi Klaus,

Maybe a full trace for the failed case including replies and ACK and
port numbers would help, I just don't see the port information in this one.

The problem I've had with T38modem is it was sending the request from
different port than it puts into Contact and Via, but the log says ACK
is incorrect so we need to check Record-Routing and RURI in the ACK too.

On 10/05/2012 03:06 PM, Klaus Peter v. Friedeburg wrote:
> Hi,
> 
> I have problems with mis-routed replys in NGCP 2.6:
> 
> This is an initial Invite that works:
> *******************************************************************
> INVITE sip:9830355 at sip-test.aco-connect.de SIP/2.0
> Date: Fri, 05 Oct 2012 12:05:51 GMT
> CSeq: 2 INVITE
> Via: SIP/2.0/UDP 81.90.192.217:25614;branch=z9hG4bKdc6301ad-520d-e211-9999-000c296dbef0;rport
> User-Agent: T38Modem/1.2.0
> From: "root" <sip:004956199797437 at sip-test.aco-connect.de>;tag=a061f9ac-520d-e211-9999-000c296dbef0
> Call-ID: 3270f9ac-520d-e211-9999-000c296dbef0 at fax2fax-test.aco-connect.de
> Organization: Vyacheslav Frolov
> To: <sip:9830355 at sip-test.aco-connect.de>
> Contact: <sip:004956199797437 at 81.90.192.217:25614>
> Proxy-Authorization: Digest username="004956199797437", realm="sip-test.aco-connect.de", nonce="xxxxxxxxx", uri="sip:9830355 at sip-test.aco-connect.de", algorithm=MD5, response="xxxxxxxxxx"
> Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING
> Content-Type: application/sdp
> Content-Length: 264
> Max-Forwards: 70
> 
> v=0
> o=- 1349438751 1 IN IP4 81.90.192.217
> s=Opal SIP Session
> c=IN IP4 81.90.192.217
> t=0 0
> m=audio 5000 RTP/AVP 8 101 100
> a=sendrecv
> a=rtpmap:8 PCMA/8000/1
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-16,32,36
> a=rtpmap:100 NSE/8000
> a=fmtp:100 192-193
> *******************************************************************
> 
> This is an other initial Invite from the same machine that does not work!
> *******************************************************************
> INVITE sip:9830355 at sip-test.aco-connect.de SIP/2.0
> CSeq: 2 INVITE
> Via: SIP/2.0/UDP 81.90.192.217:32770;branch=z9hG4bK50a6fce0-580d-e211-964b-000c296dbef0;rport
> User-Agent: T38Modem/2.0.0
> From: "root" <sip:004956199797437 at sip-test.aco-connect.de>;tag=707ff4e0-580d-e211-964b-000c296dbef0
> Call-ID: e087f4e0-580d-e211-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Organization: Vyacheslav Frolov
> To: <sip:9830355 at sip-test.aco-connect.de>
> Contact: <sip:004956199797437 at 81.90.192.217:32770>
> Proxy-Authorization: Digest username="004956199797437", realm="sip-test.aco-connect.de", nonce=" xxxxxxxxx", uri="sip:9830355 at sip-test.aco-connect.de", algorithm=MD5, response=" xxxxxxxxx"
> Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING
> Content-Type: application/sdp
> Content-Length: 231
> Max-Forwards: 70
> 
> v=0
> o=- 1349441415 1 IN IP4 81.90.192.217
> s=T38Modem/2.0.0
> c=IN IP4 81.90.192.217
> t=0 0
> m=audio 5000 RTP/AVP 8 101
> a=sendrecv
> a=rtpmap:8 PCMA/8000/1
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-16,32,36
> a=maxptime:240 
> *******************************************************************
> 
> The kamailio-proxy log show this:
> *******************************************************************
> Oct  5 14:50:15 sip3 /usr/sbin/kamailio[2436]: INFO: <script>: Appending P-D-URI 'sip:192.168.100.55:5060;received='sip:62.180.237.70:5060;transport=udp'' - R=sip:4
> 95619830355 at 62.180.237.70:5060;transport=udp ID=e087f4e0-580d-e211-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:15 sip3 /usr/sbin/kamailio[2436]: INFO: <script>: Forcing request via B2BUA 'sip:192.168.100.55:5080' - R=sip:495619830355 at 62.180.237.70:5060;transport
> =udp ID=e087f4e0-580d-e211-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:15 sip3 /usr/sbin/kamailio[2436]: INFO: <script>: Setting P-Caller-UUID to '18205f5a-cfe6-49fc-9937-0a64d090498b' - R=sip:495619830355 at 62.180.237.70:50
> 60;transport=udp ID=e087f4e0-580d-e211-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:15 sip3 /usr/sbin/kamailio[2436]: INFO: <script>: Setting P-Callee-UUID to '0' - R=sip:495619830355 at 62.180.237.70:5060;transport=udp ID=e087f4e0-580d-e
> 211-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:15 sip3 /usr/sbin/kamailio[2436]: INFO: <script>: Request leaving server, D-URI='sip:192.168.100.55:5080' - R=sip:495619830355 at 62.180.237.70:5060;trans
> port=udp ID=e087f4e0-580d-e211-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:15 sip3 /usr/sbin/kamailio[2439]: INFO: <script>: NAT-Reply - S=100 - Connecting M=INVITE IP=81.90.192.217:32770 (192.168.100.55:5080) ID=e087f4e0-580d
> -e211-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:18 sip3 /usr/sbin/kamailio[2428]: INFO: <script>: NAT-Reply - S=180 - Ringing M=INVITE IP=81.90.192.217:32770 (192.168.100.55:5080) ID=e087f4e0-580d-e2
> 11-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:23 sip3 /usr/sbin/kamailio[2444]: INFO: <script>: NAT-Reply - S=200 - OK M=INVITE IP=81.90.192.217:32770 (192.168.100.55:5080) ID=e087f4e0-580d-e211-96
> 4b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:23 sip3 /usr/sbin/kamailio[2448]: INFO: <script>: New request - M=ACK R=sip:9830355 at sip-test.aco-connect.de F=sip:004956199797437 at sip-test.aco-connect.
> de T=sip:9830355 at sip-test.aco-connect.de IP=81.90.192.217:32770 (192.168.100.55:5060) ID=e087f4e0-580d-e211-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:23 sip3 /usr/sbin/kamailio[2448]: INFO: <script>: Relaying request, du='<null>' - R=sip:9830355 at sip-test.aco-connect.de ID=e087f4e0-580d-e211-964b-000c
> 296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:23 sip3 /usr/sbin/kamailio[2442]: INFO: <script>: New request - M=ACK R=sip:9830355 at sip-test.aco-connect.de F=sip:056199797437 at sip-test.aco-connect.de
> T=sip:9830355 at sip-test.aco-connect.de IP=81.90.192.214:5060 (192.168.100.55:5060) ID=e087f4e0-580d-e211-964b-000c296dbef0 at fax2fax-test.aco-connect.de
> Oct  5 14:50:23 sip3 /usr/sbin/kamailio[2442]: INFO: <script>: Dropping mis-routed request - R=sip:9830355 at sip-test.aco-connect.de ID=e087f4e0-580d-e211-964b-000c29
> 6dbef0 at fax2fax-test.aco-connect.de
> *******************************************************************
> 
> Nothing in sems log!
> 
> The differences are in the SDP body
> But what is wrong?????
> 
> 
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