[Spce-user] Malformed re-invite

Wed Dec 16 05:23:48 EST 2015

Hi,
MTU fragmentation maybe ?

--
Daniel Grotti
VoIP Engineer

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

On 12/15/2015 12:08 PM, Boštjan Štros wrote:
> 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 -> 127.0.0.1:5060
> INVITE sip:38682280015 at 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>;tag=71035B18-5666C668000395A7-56FEF700'
> 
> To: <sip:38682280015 at 188.40.66.75>;tag=as771e8823'
> CSeq: 11 INVITE'
> Call-ID: 5289233512da160f06fea9f86a82b954 at 188.40.66.75'
> Contact: <sip:386981112341031 at 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>,
> <sip:77.94.133.244;r2=on;lr=on;ftag=as771e8823;ngcplb=yes;socket=udp: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 -> 188.40.66.75:5060
> INVITE sip:38682280015 at 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>'
> 
> Record-Route:
> <sip:127.0.0.1;r2=on;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;ngcplb=yes;socket=udp: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>;tag=71035B18-5666C668000395A7-56FEF700'
> 
> To: <sip:38682280015 at 188.40.66.75>;tag=as771e8823'
> CSeq: 11 INVITE'
> Call-ID: 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 77.94.133.244:5060;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 -> 127.0.0.1:5060
> INVITE sip:38682280015 at 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>;tag=71035B18-5666C668000395A7-56FEF700'
> 
> To: <sip:38682280015 at 188.40.66.75>;tag=as771e8823'
> CSeq: 11 INVITE'
> Call-ID: 5289233512da160f06fea9f86a82b954 at 188.40.66.75'
> Contact: <sip:386981112341031 at 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>,
> <sip:77.94.133.244;r2=on;lr=on;ftag=as771e8823;ngcplb=yes;socket=udp: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 -> 188.40.66.75:5060
> INVITE sip:38682280015 at 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>'
> 
> Record-Route:
> <sip:127.0.0.1;r2=on;lr=on;ftag=71035B18-5666C668000395A7-56FEF700;ngcplb=yes;socket=udp: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>;tag=71035B18-5666C668000395A7-56FEF700'
> 
> To: <sip:38682280015 at 188.40.66.75>;tag=as771e8823'
> CSeq: 11 INVITE'
> Call-ID: 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 77.94.133.244:5060;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