[OpenSER-Users] INVITE relayed with missing bytes

Tue Oct 23 16:39:51 CEST 2007

Hi Ovidiu,

So you are saying that despite ngrep does not show it, the whole packet
is correctly sent?

thank you

George 

> -----Original Message-----
> From: Ovidiu Sas [mailto:sip.nslu at gmail.com] 
> Sent: Tuesday, October 23, 2007 5:23 PM
> To: Papadopoulos Georgios
> Cc: users at openser.org
> Subject: Re: [OpenSER-Users] INVITE relayed with missing bytes
> 
> Hi Georgios,
> 
> It seems that your packet is to big and it was fragmented 
> (udp fragmentation).
> OpenSER is able to deal with fragmented packets (both sending 
> and receiving).
> 
> 
> Regards,
> Ovidiu Sas
> 
> On 10/23/07, Papadopoulos Georgios <geop at altectelecoms.gr> wrote:
> >
> >
> > Hello all,
> >
> > I am noticing that OpenSER relays an INVITE and the packet that is 
> > sent out is clipped. You can see in the following packets that the 
> > forwarded packet is missing a few bytes from the SDP part. Counting 
> > the bytes shows that the outgoing packet is always 1512 
> bytes. Is this 
> > something that has do with OpenSER (module parameter, 
> compile options) or is it OS related?
> >
> > thank you for any help
> >
> > George
> >
> >
> >
> > U 2007/10/23 13:27:46.165232 213.5.1.6:57665 -> 
> 213.5.43.4:5060 INVITE 
> > sip:1012118204501 at 213.5.43.4:5060 SIP/2.0.
> > Via: SIP/2.0/UDP
> > 
> 213.5.1.6:5060;x-route-tag="cid:CID-ACN-3 at 213.5.1.6";branch=z9
> hG4bK1594C1AB9.
> > Remote-Party-ID: "GEOP Papadopoul"
> > <sip:2116872933 at 213.5.1.6>;party=calling;screen=no;privacy=off.
> > From: "GEOP Papadopoul" 
> <sip:2116872933 at 213.5.1.6>;tag=237E8130-1821.
> > To: <sip:1012118204501 at 213.5.43.4>.
> > Date: Tue, 23 Oct 2007 10:27:46 GMT.
> > Call-ID: 6E2DF805-808911DC-AA258232-F1669B65 at 213.5.1.6.
> > Supported: 100rel,timer,resource-priority,replaces.
> > Min-SE:  1800.
> > Cisco-Guid: 1848010793-2156466652-3218142496-4228086245.
> > User-Agent: Cisco-SIPGateway/IOS-12.x.
> > Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, 
> > SUBSCRIBE, NOTIFY, INFO, REGISTER.
> > CSeq: 101 INVITE.
> > Max-Forwards: 70.
> > Timestamp: 1193135266.
> > Contact: <sip:2116872933 at 213.5.1.6:5060>.
> > Call-Info:
> > 
> <sip:213.5.1.6:5060>;method="NOTIFY;Event=telephone-event;Dura
> tion=2000".
> > Expires: 180.
> > Allow-Events: telephone-event.
> > Content-Type: application/sdp.
> > Content-Disposition: session;handling=required.
> > Content-Length: 290.
> > .
> > v=0.
> > o=CiscoSystemsSIP-GW-UserAgent 5211 453 IN IP4 213.5.1.6.
> > s=SIP Call.
> > c=IN IP4 213.5.1.6.
> > t=0 0.
> > m=audio 16454 RTP/AVP 18 0 8 100.
> > c=IN IP4 213.5.1.6.
> > a=rtpmap:18 G729/8000.
> > a=fmtp:18 annexb=yes.
> > a=rtpmap:0 PCMU/8000.
> > a=rtpmap:8 PCMA/8000.
> > a=rtpmap:100 X-NSE/8000.
> > a=fmtp:100 192-194.
> >
> >
> > U 2007/10/23 13:27:46.173826 213.5.43.4:5060 -> 213.5.1.6:57665 
> > SIP/2.0 100 Giving a try.
> > Via: SIP/2.0/UDP
> > 
> 213.5.1.6:5060;x-route-tag="cid:CID-ACN-3 at 213.5.1.6";branch=z9
> hG4bK1594C1AB9;rport=57665.
> > From: "GEOP Papadopoul" 
> <sip:2116872933 at 213.5.1.6>;tag=237E8130-1821.
> > To: <sip:1012118204501 at 213.5.43.4>.
> > Call-ID: 6E2DF805-808911DC-AA258232-F1669B65 at 213.5.1.6.
> > CSeq: 101 INVITE.
> > Server: Altec Telecoms SIP Proxy.
> > Content-Length: 0.
> > .
> >
> >
> > U 2007/10/23 13:27:46.174241 213.5.43.4:5060 -> 213.5.17.226:5060 
> > INVITE sip:demo1 at 192.168.1.39:5060 SIP/2.0.
> > Record-Route: <sip:213.5.43.4;lr=on;ftag=237E8130-1821>.
> > Via: SIP/2.0/UDP 213.5.43.4;branch=z9hG4bK4acd.5092baa7.0.
> > Via: SIP/2.0/UDP
> > 
> 213.5.1.6:5060;rport=57665;x-route-tag="cid:CID-ACN-3 at 213.5.1.
> 6";branch=z9hG4bK1594C1AB9.
> > Remote-Party-ID: "GEOP Papadopoul"
> > <sip:2116872933 at 213.5.1.6>;party=calling;screen=no;privacy=off.
> > From: "GEOP Papadopoul" 
> <sip:2116872933 at 213.5.1.6>;tag=237E8130-1821.
> > To: <sip:1012118204501 at 213.5.43.4>.
> > Date: Tue, 23 Oct 2007 10:27:46 GMT.
> > Call-ID: 6E2DF805-808911DC-AA258232-F1669B65 at 213.5.1.6.
> > Supported: 100rel,timer,resource-priority,replaces.
> > Min-SE:  1800.
> > Cisco-Guid: 1848010793-2156466652-3218142496-4228086245.
> > User-Agent: Cisco-SIPGateway/IOS-12.x.
> > Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, 
> > SUBSCRIBE, NOTIFY, INFO, REGISTER.
> > CSeq: 101 INVITE.
> > Max-Forwards: 10.
> > Timestamp: 1193135266.
> > Contact: <sip:2116872933 at 213.5.1.6:57665>.
> > Call-Info:
> > 
> <sip:213.5.1.6:5060>;method="NOTIFY;Event=telephone-event;Dura
> tion=2000".
> > Expires: 180.
> > Allow-Events: telephone-event.
> > Content-Type: application/sdp.
> > Content-Disposition: session;handling=required.
> > Content-Length: 290.
> > P-hint: NATed client request.
> > .
> > v=0.
> > o=CiscoSystemsSIP-GW-UserAgent 5211 453 IN IP4 213.5.1.6.
> > s=SIP Call.
> > c=IN IP4 213.5.1.6.
> > t=0 0.
> > m=audio 16454 RTP/AVP 18 0 8 100.
> > c=IN IP4 213.5.1.6.
> > a=rtpmap:18 G729/8000.
> > a=fmtp:18 annexb=yes.
> > a=rtpmap:0 PCMU/8000.
> > a=rtpmap:8 PCMA/8000.
> > a=rtpmap:100 X-NSE/8000.
> > a=fmtp:100
> >
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