[Users] via header not added when transport=TCP?

Bogdan-Andrei Iancu bogdan at voice-system.ro
Mon Jul 25 14:05:23 CEST 2005


Hi Erich,

do you get any errors in the log when OpenSER forwards the request over TCP?
why is the RR header missing when using TCP? can you post for the TCP 
case, the full network capture -incoming and outgoing message with 
addresses and ports?

thanks for report and regards,
bogdan

Erich Nahum wrote:

>Howdy,
>
>I'm playing with OPENSER 0.9.5 with sipp as the workload generator on
>a bunch of linux boxes.  When the transport is UDP, openser adds a
>via header like it is supposed to as a proxy.  But when I use TCP no
>via header is added.  This is a UAC->proxy->UAS scenario.  Here's the
>header as seen at the UAS:
>
>| UDP message received [633] bytes :
>| 
>| INVITE sip:service at 10.0.1.41:5060 SIP/2.0
>| Record-Route: <sip:10.0.1.42;ftag=1;lr=on>
>| Via: SIP/2.0/UDP 10.0.1.42;branch=z9hG4bKe9cc.cc24a79.0
>| Via: SIP/2.0/UDP bronxville1:5060;received=10.0.1.40;branch=z9hG4bK-1-0
>| From: sipp <sip:sipp at bronxville1:5060>;tag=1
>| To: sut <sip:service at 10.0.1.41:5060>
>| Call-ID: 1-31891 at bronxville1
>| CSeq: 1 INVITE
>| Contact: sip:sipp at bronxville1:5060
>| Max-Forwards: 16
>| Subject: Performance Test
>| Content-Type: application/sdp
>| Content-Length:  132
>| P-hint: outbound
>
>And the corresponding message received at the UAS when using TCP:
>
>| TCP message received [495] bytes :
>| 
>| INVITE sip:service at 10.0.1.41:5060 SIP/2.0
>| Via: SIP/2.0/TCP bronxville1:5060;branch=z9hG4bK-1-0
>| From: sipp <sip:sipp at bronxville1:5060>;tag=1
>| To: sut <sip:service at 10.0.1.41:5060>
>| Call-ID: 1-31865 at bronxville1
>| CSeq: 1 INVITE
>| Contact: sip:sipp at bronxville1:5060
>| Max-Forwards: 70
>| Subject: Performance Test
>| Content-Type: application/sdp
>| Content-Length:  132
>
>Note the absence of the 2nd Via header.  Openser complains about this on
>the way back to the UAC.
>
>Any suggestions appreciated.
>
>Thanks,
>
>-Erich
>  
>





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