[Spce-user] Malformed re-invite

Tue Dec 15 14:11:48 EST 2015

Hi,

You are probably hitting UDP fragmentation issues.
In wireshark look for packets close to 1500 bytes.

Change your sip trunking to TCP, and if it works ok, it's definetly UDP
frag.

---
Cumprimentos / Best regards

Marco Teixeira
---

On Tue, Dec 15, 2015 at 11:22 AM, Boštjan Štros <bostjan at alstar.si> 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
> --
>
>
>
> _______________________________________________
> Spce-user mailing list
> Spce-user at lists.sipwise.com
> https://lists.sipwise.com/listinfo/spce-user
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sipwise.com/pipermail/spce-user_lists.sipwise.com/attachments/20151215/90822b15/attachment-0001.html>