[Spce-user] Malformed re-invite

Daniel Grotti dgrotti at sipwise.com
Wed Dec 16 05:55:39 EST 2015


You should be able to re-build the fragmented packet on the end side.
If not, please use TCP.
Increasing MTU is not a good choice.



--
Daniel Grotti
VoIP Engineer


Sipwise GmbH
Europaring F15 | 2345 Brunn am Gebirge, Austria | www.sipwise.com

On 12/16/2015 11:53 AM, Marco Teixeira wrote:
> You increased the MTU?!
> Good luck down the road...
> 
> Em 16/12/2015 10:44, "Boštjan Štros" <bostjan at alstar.si
> <mailto:bostjan at alstar.si>> escreveu:
> 
>     Looks like it's an MTU issue yes, the packed is bigger then 1500
>     bytes so we had to increase the MTU, that solved the problem.
> 
>     Thank you for your feedback,
>     Bostjan
> 
> 
>     Boštjan Štros je 15. 12. 2015 ob 12:22 napisal:
> 
>         Hello all,
> 
>         we have a problem with re-invites passing through sipwise during a
>         call, kamailio-proxy sends out correct packet, but kamailio-lb seems
>         like it cuts out a few characters in the end and therefore it
>         does not
>         get recognized and replied in PBX, the packet is also not visible in
>         wireshark. I don't see any errors in kamailio-lb logs though. What
>         could be the cause of that?
> 
>         Here's a ngrep-sip of the re-invite:
> 
>         U 2015/12/08 13:01:13.253868 127.0.0.1:5062
>         <http://127.0.0.1:5062> -> 127.0.0.1:5060 <http://127.0.0.1:5060>
>         INVITE sip:38682280015 at 188.40.66.75:5060
>         <http://sip:38682280015@188.40.66.75:5060> SIP/2.0'
>         Max-Forwards: 10'
>         Record-Route:
>         <sip:127.0.0.1:5062;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;rtpprx=yes;ice_caller=strip;ice_callee=strip;mpd=ii>'
>         Via: SIP/2.0/UDP
>         127.0.0.1:5062;branch=z9hG4bK81db.432378edfe05dd0c2fa51462d323c8d6.0'
>         Via: SIP/2.0/UDP 127.0.0.1:5080;branch=z9hG4bK1PPKiaWn;rport=5080'
>         From:
>         <sip:38612341031 at voip.alstar.si:5060
>         <http://sip:38612341031@voip.alstar.si:5060>>;tag=71035B18-5666C668000395A7-56FEF700'
>         To: <sip:38682280015 at 188.40.66.75
>         <mailto:sip%3A38682280015 at 188.40.66.75>>;tag=as771e8823'
>         CSeq: 11 INVITE'
>         Call-ID: 5289233512da160f06fea9f86a82b954 at 188.40.66.75
>         <mailto:5289233512da160f06fea9f86a82b954 at 188.40.66.75>'
>         Contact: <sip:386981112341031 at 127.0.0.1:5080
>         <http://sip:386981112341031@127.0.0.1:5080>>'
>         Route:
>         <sip:127.0.0.1;r2=on;lr=on;ftag=as771e8823;ngcplb=yes;socket=udp:77.94.133.244:5060
>         <http://77.94.133.244:5060>>,
>         <sip:77.94.133.244;r2=on;lr=on;ftag=as771e8823;ngcplb=yes;socket=udp:77.94.133.244:5060
>         <http://77.94.133.244:5060>>,
>         <sip:188.40.66.75;lr=on;ftag=as771e8823;did=5e4.283b507>'
>         User-Agent: BN4000-3.3.1 '
>         Supported: timer, 100rel'
>         Allow: INVITE,CANCEL,ACK,BYE,OPTIONS,INFO,PRACK,UPDATE,REFER,NOTIFY'
>         Content-Type: application/sdp'
>         Content-Length: 238'
>         '
>         v=0'
>         o=BN4000 3136201 7227637 IN IP4 77.94.133.244'
>         s=-'
>         c=IN IP4 77.94.133.244'
>         b=AS:64'
>         t=0 0'
>         m=audio 35292 RTP/AVP 8 101'
>         a=rtpmap:8 PCMA/8000'
>         a=rtpmap:101 telephone-event/8000'
>         a=fmtp:101 0-15'
>         a=ptime:20'
>         a=sendrecv'
>         a=rtcp:35293'
> 
> 
>         U 2015/12/08 13:01:13.254284 77.94.133.244:5060
>         <http://77.94.133.244:5060> -> 188.40.66.75:5060
>         <http://188.40.66.75:5060>
>         INVITE sip:38682280015 at 188.40.66.75:5060
>         <http://sip:38682280015@188.40.66.75:5060> SIP/2.0'
>         Record-Route:
>         <sip:77.94.133.244;r2=on;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;ngcplb=yes;socket=udp:77.94.133.244:5060
>         <http://77.94.133.244:5060>>'
>         Record-Route:
>         <sip:127.0.0.1;r2=on;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;ngcplb=yes;socket=udp:77.94.133.244:5060
>         <http://77.94.133.244:5060>>'
>         Max-Forwards:  9'
>         Record-Route:
>         <sip:127.0.0.1:5062;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;rtpprx=yes;ice_caller=strip;ice_callee=strip;mpd=ii>'
>         Via: SIP/2.0/UDP
>         77.94.133.244;branch=z9hG4bK81db.a36a40d807fa8c2ed52fdda936aceb38.0'
>         Via: SIP/2.0/UDP
>         127.0.0.1:5062;rport=5062;branch=z9hG4bK81db.432378edfe05dd0c2fa51462d323c8d6.0'
>         Via: SIP/2.0/UDP 127.0.0.1:5080;branch=z9hG4bK1PPKiaWn;rport=5080'
>         From:
>         <sip:38612341031 at voip.alstar.si:5060
>         <http://sip:38612341031@voip.alstar.si:5060>>;tag=71035B18-5666C668000395A7-56FEF700'
>         To: <sip:38682280015 at 188.40.66.75
>         <mailto:sip%3A38682280015 at 188.40.66.75>>;tag=as771e8823'
>         CSeq: 11 INVITE'
>         Call-ID: 5289233512da160f06fea9f86a82b954 at 188.40.66.75
>         <mailto:5289233512da160f06fea9f86a82b954 at 188.40.66.75>'
>         Route: <sip:188.40.66.75;lr=on;ftag=as771e8823;did=5e4.283b507>'
>         User-Agent: BN4000-3.3.1 '
>         Supported: timer, 100rel'
>         Allow: INVITE,CANCEL,ACK,BYE,OPTIONS,INFO,PRACK,UPDATE,REFER,NOTIFY'
>         Content-Type: application/sdp'
>         Content-Length: 238'
>         Contact:
>         <sip:ngcp-lb at 77.94.133.244
>         <mailto:sip%3Angcp-lb at 77.94.133.244>:5060;ngcpct=7369703a3132372e302e302e313a35303830>'
>         '
>         v=0'
>         o=BN4000 3136201 7227637 IN IP4 77.94.133.244'
>         s=-'
>         c=IN IP4 77.94.133.244'
>         b=AS:64'
>         t=0 0'
>         m=audio 35292 RTP/AVP 8 101'
>         a=rtpmap:8 PCMA/8000'
>         a=rtpmap:101 telephone-event/8000'
>         a=fmtp:101 0-15'
>         a=ptime:20'
>         a=sendrecv'
>         a=rtcp:
> 
>         U 2015/12/08 13:01:13.719199 127.0.0.1:5062
>         <http://127.0.0.1:5062> -> 127.0.0.1:5060 <http://127.0.0.1:5060>
>         INVITE sip:38682280015 at 188.40.66.75:5060
>         <http://sip:38682280015@188.40.66.75:5060> SIP/2.0'
>         Max-Forwards: 10'
>         Record-Route:
>         <sip:127.0.0.1:5062;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;rtpprx=yes;ice_caller=strip;ice_callee=strip;mpd=ii>'
>         Via: SIP/2.0/UDP
>         127.0.0.1:5062;branch=z9hG4bK81db.432378edfe05dd0c2fa51462d323c8d6.0'
>         Via: SIP/2.0/UDP 127.0.0.1:5080;branch=z9hG4bK1PPKiaWn;rport=5080'
>         From:
>         <sip:38612341031 at voip.alstar.si:5060
>         <http://sip:38612341031@voip.alstar.si:5060>>;tag=71035B18-5666C668000395A7-56FEF700'
>         To: <sip:38682280015 at 188.40.66.75
>         <mailto:sip%3A38682280015 at 188.40.66.75>>;tag=as771e8823'
>         CSeq: 11 INVITE'
>         Call-ID: 5289233512da160f06fea9f86a82b954 at 188.40.66.75
>         <mailto:5289233512da160f06fea9f86a82b954 at 188.40.66.75>'
>         Contact: <sip:386981112341031 at 127.0.0.1:5080
>         <http://sip:386981112341031@127.0.0.1:5080>>'
>         Route:
>         <sip:127.0.0.1;r2=on;lr=on;ftag=as771e8823;ngcplb=yes;socket=udp:77.94.133.244:5060
>         <http://77.94.133.244:5060>>,
>         <sip:77.94.133.244;r2=on;lr=on;ftag=as771e8823;ngcplb=yes;socket=udp:77.94.133.244:5060
>         <http://77.94.133.244:5060>>,
>         <sip:188.40.66.75;lr=on;ftag=as771e8823;did=5e4.283b507>'
>         User-Agent: BN4000-3.3.1 '
>         Supported: timer, 100rel'
>         Allow: INVITE,CANCEL,ACK,BYE,OPTIONS,INFO,PRACK,UPDATE,REFER,NOTIFY'
>         Content-Type: application/sdp'
>         Content-Length: 238'
>         '
>         v=0'
>         o=BN4000 3136201 7227637 IN IP4 77.94.133.244'
>         s=-'
>         c=IN IP4 77.94.133.244'
>         b=AS:64'
>         t=0 0'
>         m=audio 35292 RTP/AVP 8 101'
>         a=rtpmap:8 PCMA/8000'
>         a=rtpmap:101 telephone-event/8000'
>         a=fmtp:101 0-15'
>         a=ptime:20'
>         a=sendrecv'
>         a=rtcp:35293'
> 
> 
>         U 2015/12/08 13:01:13.719615 77.94.133.244:5060
>         <http://77.94.133.244:5060> -> 188.40.66.75:5060
>         <http://188.40.66.75:5060>
>         INVITE sip:38682280015 at 188.40.66.75:5060
>         <http://sip:38682280015@188.40.66.75:5060> SIP/2.0'
>         Record-Route:
>         <sip:77.94.133.244;r2=on;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;ngcplb=yes;socket=udp:77.94.133.244:5060
>         <http://77.94.133.244:5060>>'
>         Record-Route:
>         <sip:127.0.0.1;r2=on;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;ngcplb=yes;socket=udp:77.94.133.244:5060
>         <http://77.94.133.244:5060>>'
>         Max-Forwards:  9'
>         Record-Route:
>         <sip:127.0.0.1:5062;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;rtpprx=yes;ice_caller=strip;ice_callee=strip;mpd=ii>'
>         Via: SIP/2.0/UDP
>         77.94.133.244;branch=z9hG4bK81db.a36a40d807fa8c2ed52fdda936aceb38.0'
>         Via: SIP/2.0/UDP
>         127.0.0.1:5062;rport=5062;branch=z9hG4bK81db.432378edfe05dd0c2fa51462d323c8d6.0'
>         Via: SIP/2.0/UDP 127.0.0.1:5080;branch=z9hG4bK1PPKiaWn;rport=5080'
>         From:
>         <sip:38612341031 at voip.alstar.si:5060
>         <http://sip:38612341031@voip.alstar.si:5060>>;tag=71035B18-5666C668000395A7-56FEF700'
>         To: <sip:38682280015 at 188.40.66.75
>         <mailto:sip%3A38682280015 at 188.40.66.75>>;tag=as771e8823'
>         CSeq: 11 INVITE'
>         Call-ID: 5289233512da160f06fea9f86a82b954 at 188.40.66.75
>         <mailto:5289233512da160f06fea9f86a82b954 at 188.40.66.75>'
>         Route: <sip:188.40.66.75;lr=on;ftag=as771e8823;did=5e4.283b507>'
>         User-Agent: BN4000-3.3.1 '
>         Supported: timer, 100rel'
>         Allow: INVITE,CANCEL,ACK,BYE,OPTIONS,INFO,PRACK,UPDATE,REFER,NOTIFY'
>         Content-Type: application/sdp'
>         Content-Length: 238'
>         Contact:
>         <sip:ngcp-lb at 77.94.133.244
>         <mailto:sip%3Angcp-lb at 77.94.133.244>:5060;ngcpct=7369703a3132372e302e302e313a35303830>'
>         '
>         v=0'
>         o=BN4000 3136201 7227637 IN IP4 77.94.133.244'
>         s=-'
>         c=IN IP4 77.94.133.244'
>         b=AS:64'
>         t=0 0'
>         m=audio 35292 RTP/AVP 8 101'
>         a=rtpmap:8 PCMA/8000'
>         a=rtpmap:101 telephone-event/8000'
>         a=fmtp:101 0-15'
>         a=ptime:20'
>         a=sendrecv'
>         a=rtcp:
> 
> 
> 
>         Thank you for reply and best regards,
>         Bostjan
> 
> 
> 
> 
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> 
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