RE: [OpenSER-Users] INVITE relayed with missing bytes

23 Oct 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@gmail.com] 
 Sent: Tuesday, October 23, 2007 5:23 PM
 To: Papadopoulos Georgios
 Cc: users(a)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 &lt;geop(a)altectelecoms.gr&gt; 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@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@213.5.1.6";branch=z9
 hG4bK1594C1AB9.
  Remote-Party-ID: "GEOP Papadopoul"
 <sip:2116872933@213.5.1.6>;party=calling;screen=no;privacy=off.
 From: "GEOP Papadopoul"  
<sip:2116872933@213.5.1.6>;tag=237E8130-1821.
  To: <sip:1012118204501@213.5.43.4>.
 Date: Tue, 23 Oct 2007 10:27:46 GMT.
 Call-ID: 6E2DF805-808911DC-AA258232-F1669B65(a)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@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@213.5.1.6";branch=z9
 hG4bK1594C1AB9;rport=57665.
  From: "GEOP Papadopoul"  
<sip:2116872933@213.5.1.6>;tag=237E8130-1821.
  To: <sip:1012118204501@213.5.43.4>.
 Call-ID: 6E2DF805-808911DC-AA258232-F1669B65(a)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@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@213.5.1.
 6";branch=z9hG4bK1594C1AB9.
  Remote-Party-ID: "GEOP Papadopoul"
 <sip:2116872933@213.5.1.6>;party=calling;screen=no;privacy=off.
 From: "GEOP Papadopoul"  
<sip:2116872933@213.5.1.6>;tag=237E8130-1821.
  To: <sip:1012118204501@213.5.43.4>.
 Date: Tue, 23 Oct 2007 10:27:46 GMT.
 Call-ID: 6E2DF805-808911DC-AA258232-F1669B65(a)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@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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RE: [OpenSER-Users] INVITE relayed with missing bytes