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(a)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@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@bronxville1:5060>;tag=1 SIP from address: sipp <sip:sipp@bronxville1:5060> SIP tag: 1 To: sut <sip:service@10.0.1.41:5060> Call-ID: 1-28105@bronxville1 CSeq: 1 INVITE Contact: sip:sipp@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@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@bronxville1:5060>;tag=1 SIP from address: sipp <sip:sipp@bronxville1:5060> SIP tag: 1 To: sut <sip:service@10.0.1.41:5060> Call-ID: 1-27019@bronxville1 CSeq: 1 INVITE Contact: sip:sipp@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@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@bronxville1:5060>;tag=1 SIP from address: sipp <sip:sipp@bronxville1:5060> SIP tag: 1 To: sut <sip:service@10.0.1.41:5060> Call-ID: 1-26914@bronxville1 CSeq: 1 INVITE Contact: sip:sipp@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@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@bronxville1:5060>;tag=1 SIP from address: sipp <sip:sipp@bronxville1:5060> SIP tag: 1 To: sut <sip:service@10.0.1.41:5060> Call-ID: 1-26885@bronxville1 CSeq: 1 INVITE Contact: sip:sipp@bronxville1:5060 Max-Forwards: 70 Subject: Performance Test Content-Type: application/sdp Content-Length: 132 Message body

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