[Serusers] Record-Route/Via headers not added when protocol=TCP

[Jan Janak]

The request sent over TCP is sent directly to 10.0.1.41, not to
10.0.1.42 (which I suppose is the proxy).

  Jan.

On 02-08-2005 07:58, Erich Nahum wrote:
> Howdy,
> 
> I'm playing with SER 0.9.3 with sipp as the workload generator on
> a bunch of linux boxes.  When the transport is UDP, openser adds the
> record-route and via headers like it is supposed to as a proxy.  But 
> when I use TCP these headers are not added.  This is a UAC->proxy->UAS 
> scenario.  
> 
> I'm attaching ethereal dumps of the UDP-based UAC, TCP-based UAC, UDP-based
> UAS, and TCP-based UAS for reference.
> 
> Any suggestions appreciated.
> 
> Thanks,
> 
> -Erich
> -- 
> Erich M. Nahum                  IBM T.J. Watson Research Center
> Research Staff Member           P.O. Box 704
> nahum at watson.ibm.com            Yorktown Heights NY 10598

> Frame 7 (537 bytes on wire, 537 bytes captured)
> Ethernet II, Src: 00:11:25:29:11:5d, Dst: 00:0d:60:9d:30:3f
> Internet Protocol, Src Addr: 10.0.1.40 (10.0.1.40), Dst Addr: 10.0.1.42 (10.0.1.42)
> User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
> Session Initiation Protocol
>     Request-Line: INVITE sip:service at 10.0.1.41:5060 SIP/2.0
>         Method: INVITE
>         Resent Packet: False
>     Message Header
>         Via: SIP/2.0/UDP bronxville1:5060;branch=z9hG4bK-1-0
>         From: sipp <sip:sipp at bronxville1:5060>;tag=1
>             SIP from address: sipp <sip:sipp at bronxville1:5060>
>             SIP tag: 1
>         To: sut <sip:service at 10.0.1.41:5060>
>         Call-ID: 1-28105 at bronxville1
>         CSeq: 1 INVITE
>         Contact: sip:sipp at bronxville1:5060
>         Max-Forwards: 70
>         Subject: Performance Test
>         Content-Type: application/sdp
>         Content-Length:  132
>     Message body
> 

> Session Initiation Protocol
>     Request-Line: INVITE sip:service at 10.0.1.41:5060 SIP/2.0
>         Method: INVITE
>         Resent Packet: False
>     Message Header
>         Via: SIP/2.0/TCP bronxville1:5060;branch=z9hG4bK-1-0
>         From: sipp <sip:sipp at bronxville1:5060>;tag=1
>             SIP from address: sipp <sip:sipp at bronxville1:5060>
>             SIP tag: 1
>         To: sut <sip:service at 10.0.1.41:5060>
>         Call-ID: 1-27019 at bronxville1
>         CSeq: 1 INVITE
>         Contact: sip:sipp at bronxville1:5060
>         Max-Forwards: 70
>         Subject: Performance Test
>         Content-Type: application/sdp
>         Content-Length:  132
>     Message body
> 

> Frame 10 (676 bytes on wire, 676 bytes captured)
> Ethernet II, Src: 00:0d:60:9d:30:3f, Dst: 00:0d:60:9d:73:db
> Internet Protocol, Src Addr: 10.0.1.42 (10.0.1.42), Dst Addr: 10.0.1.41 (10.0.1.41)
> User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
> Session Initiation Protocol
>     Request-Line: INVITE sip:service at 10.0.1.41:5060 SIP/2.0
>         Method: INVITE
>         Resent Packet: False
>     Message Header
>         Record-Route: <sip:10.0.1.42;ftag=1;lr=on>
>         Via: SIP/2.0/UDP 10.0.1.42;branch=z9hG4bKcf89.f46403c6.0
>         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
>             SIP from address: sipp <sip:sipp at bronxville1:5060>
>             SIP tag: 1
>         To: sut <sip:service at 10.0.1.41:5060>
>         Call-ID: 1-26914 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
>     Message body

> Frame 16 (561 bytes on wire, 561 bytes captured)
> Ethernet II, Src: 00:11:25:29:11:5d, Dst: 00:0d:60:9d:73:db
> Internet Protocol, Src Addr: 10.0.1.40 (10.0.1.40), Dst Addr: 10.0.1.41 (10.0.1.41)
> Transmission Control Protocol, Src Port: 56280 (56280), Dst Port: 5060 (5060), Seq: 1, Ack: 1, Len: 495
> Session Initiation Protocol
>     Request-Line: INVITE sip:service at 10.0.1.41:5060 SIP/2.0
>         Method: INVITE
>         Resent Packet: False
>     Message Header
>         Via: SIP/2.0/TCP bronxville1:5060;branch=z9hG4bK-1-0
>         From: sipp <sip:sipp at bronxville1:5060>;tag=1
>             SIP from address: sipp <sip:sipp at bronxville1:5060>
>             SIP tag: 1
>         To: sut <sip:service at 10.0.1.41:5060>
>         Call-ID: 1-26885 at bronxville1
>         CSeq: 1 INVITE
>         Contact: sip:sipp at bronxville1:5060
>         Max-Forwards: 70
>         Subject: Performance Test
>         Content-Type: application/sdp
>         Content-Length:  132
>     Message body
> 
>         

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