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(a)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@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=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: 70.
Timestamp: 1193135266.
Contact: <sip:2116872933@213.5.1.6:5060>.
Call-Info:
<sip:213.5.1.6:5060>;method="NOTIFY;Event=telephone-event;Duration=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=z9hG4bK1594C1AB9;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;Duration=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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