My Previous message got high jacked due to Subject. Posting is again as a new thread.
Hello, I have two opensip servers, exactly same configuration, but one is acting different. This is the call flow. Origination -- Invite------------> Opensips Origination < 100 Trying ------ Opensips ---------------------------------------Opensips ----invite --> End user (freeswitch) ----------------------------------------Opensips <--- 100 trying -- Freeswitch ----------------------------------------Opensips <-- 183 Ringing -- Freeswitch Keeps waiting and never forward 183 back to Origination. While 2nd opensips works just fine/ MTU is 1500 on both. Working Server versions Centos 5.2, Openisps 11-2 Not working, version (Different OS, same version of Opensips) Cent OS 5.4, Opensips 11-2 Below is the full trace. Any hint to fix this will big help. I am suspecting fragmented packet size in 183 Session Progress, but not sure how to fix it. If the packet is not fragmented all works fine. Did some more testing, if I route the call to another IP, that works fine. So something very specific to this IP only. This is original trace, ALL IPs has been modified for security. 15.43.72.36:5060 -> 29.16.115.170:5060 INVITE sip:+13033334444 at domain.opensips.company.com <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060;user=phone;transport=UDP;maddr=29.16.115.170 SIP/2.0. v: SIP/2.0/UDP 15.43.72.36:5060 ;branch=z9hG4bKa83557bc149a92c4dd2e82551235a4d3.35f93e16. Record-Route: <sip:15.43.72.36:5060;lr>. Remote-Party-ID: <sip:+16784567634 at 52.88.1.5 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users> >*;screen=yes;party=calling;privacy=off. *f: <sip:+16784567634 at 19.73.4.24 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060 ;user=phone>;tag=-45026-1a697ef-67d2935e-1a697ef. t: <sip:+13033334444 at 52.88.1.5 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060;user=phone>. i: b3338bd0185eadc713c41a697ef72c17e921839f4f01a344bb8-0091-7406. CSeq: 1 INVITE. Allow: ACK,BYE,CANCEL,INVITE,OPTIONS,INFO,SUBSCRIBE,REFER,NOTIFY,PRACK. v: SIP/2.0/UDP 52.88.1.5:5060 ;branch=z9hG4bK0cba239efe292bb148db0d60f1938f42.4937234e;received=52.88.1.5. v: SIP/2.0/UDP IRW6:5060;maddr=19.73.4.24;branch=z9hG4bK-1a697ef-72c17e92-7809c98f;received=19.73.94.24. Max-Forwards: 15. m: <sip:19.73.4.24:5060;transport=UDP>. k: 100rel, resource-priority, replaces. c: application/sdp. l: 235. Record-Route: <sip:52.88.1.5;lr>. . v=0. o=PVG 1453494628460 1453494628460 IN IP4 199.173.133.17. s=-. p=+1 6135555555. c=IN IP4 199.173.133.17. t=0 0. m=audio 34552 RTP/AVP 18 0 8 101. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=ptime:20. a=fmtp:18 annexb=no. # U 29.16.115.170:5060 -> 15.43.72.36:5060 SIP/2.0 100 Giving a try. v: SIP/2.0/UDP 15.43.72.36:5060 ;branch=z9hG4bKa83557bc149a92c4dd2e82551235a4d3.35f93e16. f: <sip:+16784567634 at 19.73.4.24 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060 ;user=phone>;tag=-45026-1a697ef-67d2935e-1a697ef. t: <sip:+13033334444 at 52.88.1.5 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060;user=phone>. i: b3338bd0185eadc713c41a697ef72c17e921839f4f01a344bb8-0091-7406. CSeq: 1 INVITE. v: SIP/2.0/UDP 52.88.1.5:5060 ;branch=z9hG4bK0cba239efe292bb148db0d60f1938f42.4937234e;received=52.88.1.5. v: SIP/2.0/UDP IRW6:5060;maddr=19.73.4.24;branch=z9hG4bK-1a697ef-72c17e92-7809c98f;received=19.73.94.24. Server: Opensips SIP Gateway. Content-Length: 0. . # U 29.16.115.170:5060 -> 28.3.8.20:5060 INVITE sip:13033334444 at 28.3.8.20 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060;user=phone;transport=UDP SIP/2.0. Record-Route: <sip:29.16.115.170;lr;ftag=-45026-1a697ef-67d2935e-1a697ef;did=c63.65dae2a5>. Via: SIP/2.0/UDP 29.16.115.170:5060;branch=z9hG4bK3a79.ead0d7c5.0. v: SIP/2.0/UDP 15.43.72.36:5060 ;branch=z9hG4bKa83557bc149a92c4dd2e82551235a4d3.35f93e16. Record-Route: <sip:15.43.72.36:5060;lr>. Remote-Party-ID: <sip:+16784567634 at 52.88.1.5 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users> >*;screen=yes;party=calling;privacy=off. *f: <sip:+16784567634 at 19.73.4.24 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060 ;user=phone>;tag=-45026-1a697ef-67d2935e-1a697ef. t: <sip:+13033334444 at 52.88.1.5 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060;user=phone>. i: b3338bd0185eadc713c41a697ef72c17e921839f4f01a344bb8-0091-7406. CSeq: 1 INVITE. Allow: ACK,BYE,CANCEL,INVITE,OPTIONS,INFO,SUBSCRIBE,REFER,NOTIFY,PRACK. v: SIP/2.0/UDP 52.88.1.5:5060 ;branch=z9hG4bK0cba239efe292bb148db0d60f1938f42.4937234e;received=52.88.1.5. v: SIP/2.0/UDP IRW6:5060;maddr=19.73.4.24;branch=z9hG4bK-1a697ef-72c17e92-7809c98f;received=19.73.94.24. Max-Forwards: 14. m: <sip:19.73.4.24:5060;transport=UDP>. k: 100rel, resource-priority, replaces. c: application/sdp. l: 235. Record-Route: <sip:52.88.1.5;lr>. . v=0. o=PVG 1453494628460 1453494628460 IN IP4 199.173.133.17. s=-. p=+1 6135555555. c=IN IP4 199.173.133.17. t=0 0. m=audio 34552 RTP/AVP 18 0 8 101. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=ptime:20. a=fmtp:18 annexb=no. ##### U 28.3.8.20:5060 -> 29.16.115.170:5060 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 29.16.115.170:5060;branch=z9hG4bK3a79.ead0d7c5.0. Via: SIP/2.0/UDP 15.43.72.36:5060 ;branch=z9hG4bKa83557bc149a92c4dd2e82551235a4d3.35f93e16. Via: SIP/2.0/UDP 52.88.1.5:5060 ;branch=z9hG4bK0cba239efe292bb148db0d60f1938f42.4937234e;received=52.88.1.5. Via: SIP/2.0/UDP IRW6:5060;maddr=19.73.4.24;branch=z9hG4bK-1a697ef-72c17e92-7809c98f;received=19.73.94.24. Record-Route: <sip:29.16.115.170;lr;ftag=-45026-1a697ef-67d2935e-1a697ef;did=c63.65dae2a5>. Record-Route: <sip:15.43.72.36:5060;lr>. Record-Route: <sip:52.88.1.5;lr>. From: <sip:+16784567634 at 19.73.4.24 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060 ;user=phone>;tag=-45026-1a697ef-67d2935e-1a697ef. To: <sip:+13033334444 at 52.88.1.5 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060;user=phone>. Call-ID: b3338bd0185eadc713c41a697ef72c17e921839f4f01a344bb8-0091-7406. CSeq: 1 INVITE. User-Agent: FreeSWITCH-mod_sofia/1.2.12+git~20130816T225403Z~8566ffa82a. Content-Length: 0. . ########################## ############################### U 28.3.8.20:5060 -> 29.16.115.170:5060 SIP/2.0 183 Session Progress. Via: SIP/2.0/UDP 29.16.115.170:5060;branch=z9hG4bK3a79.ead0d7c5.0. Via: SIP/2.0/UDP 15.43.72.36:5060 ;branch=z9hG4bKa83557bc149a92c4dd2e82551235a4d3.35f93e16. Via: SIP/2.0/UDP 52.88.1.5:5060 ;branch=z9hG4bK0cba239efe292bb148db0d60f1938f42.4937234e;received=52.88.1.5. Via: SIP/2.0/UDP IRW6:5060;maddr=19.73.4.24;branch=z9hG4bK-1a697ef-72c17e92-7809c98f;received=19.73.94.24. Record-Route: <sip:29.16.115.170;lr;ftag=-45026-1a697ef-67d2935e-1a697ef;did=c63.65dae2a5>. Record-Route: <sip:15.43.72.36:5060;lr>. Record-Route: <sip:52.88.1.5;lr>. From: <sip:+16784567634 at 19.73.4.24 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060 ;user=phone>;tag=-45026-1a697ef-67d2935e-1a697ef. To: <sip:+13033334444 at 52.88.1.5 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060;user=phone>;tag=p5ZtZ40SSXprB. Call-ID: b3338bd0185eadc713c41a697ef72c17e921839f4f01a344bb8-0091-7406. CSeq: 1 INVITE. Contact: <sip:+13033334444 at 28.3.8.20 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:5060;transport=udp>. User-Agent: FreeSWITCH-mod_sofia/1.2.12+git~20130816T225403Z~8566ffa82a. Accept: application/sdp. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, conference, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 249. Remote-Party-ID: "13033334444" <sip:13033334444 at 52.88.1.5 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>>;party=calli # // Fragmented packet second part U 28.3.8.20 -> 29.16.115.170 +32125 at 1480 <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>:277 ng;privacy=off;screen=no. . v=0. o=FreeSWITCH 1453563985 1453563986 IN IP4 28.3.8.20. s=FreeSWITCH. c=IN IP4 28.3.8.20. t=0 0. m=audio 21814 RTP/AVP 0 101. a=rtpmap:0 PCMU/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. a=ptime:20. ################################################################
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