20 Dec
2006
20 Dec
'06
5:19 a.m.
There's nothing wrong in your scenario and I don't see ser forwarding
the ACK to the uas. I see the uas sending the same ACK to ser twice with
exactly the same timestamp 13:29:24.986124. Are you sure you for some
reason haven't captured the same packet twice?
g-)
tzieleniewski wrote:
Hi All!
I was trying to write some test under sipp to test ser.
My scenario was the following:
UA1 SIPProxy UA2
|INVITE | |
|------------->| |
|407 | |
|<-------------| |
|ACK | |
|------------->| |
|INVITE | |
|------------->| |
|TRYING | |
|<-------------| |
| |INVITE |
| |------------->|
| |OK |
| |<-------------|
|OK | |
|<-------------| |
|ACK | |
|------------->| |
| |ACK |
| |------------->|
I have no idea why in case of sipp emulation ser forward the first ACK to the UAS wich is
in my case x-lite under linux. ser ip is 192.168.0.74:)
The ngrep from ser port is as follows:
#
U 2006/12/19 13:29:24.976872 192.168.0.138:5060 -> 192.168.0.74:5060
INVITE sip:tzl@scscf.ims.touk.pl SIP/2.0.
Via: SIP/2.0/UDP 192.168.0.138:5061;branch=z9hG4bK-6204-1-0;rport.
Route: <sip:scscf.ims.touk.pl;lr>.
Max-Forwards: 70.
Contact: <sip:sippclient@192.168.0.138:5061>.
To: "tzl"<sip:tzl@scscf.ims.touk.pl>.
From: "sippclient"<sip:sippclient@scscf.ims.touk.pl>;tag=1.
Call-ID: 1-6204(a)127.0.0.1.
CSeq: 1 INVITE.
Subject: Performance Test.
Content-Type: application/sdp.
Content-Length: 133.
.
v=0.
o=user1 53655765 2353687637 IN IP4 192.168.0.138.
s=-.
t=0 0.
c=IN IP4 127.0.0.1.
m=audio 6000 RTP/AVP 0.
a=rtpmap:0 PCMU/8000.
#
U 2006/12/19 13:29:24.977525 192.168.0.74:5060 -> 192.168.0.138:5060
SIP/2.0 407 Proxy Authentication Required.
Via: SIP/2.0/UDP 192.168.0.138:5061;branch=z9hG4bK-6204-1-0;rport=5060.
To:
"tzl"<sip:tzl@scscf.ims.touk.pl>;tag=9463a2e9cf4445c72e97ac31aeb7f1ed.a61b.
From: "sippclient"<sip:sippclient@scscf.ims.touk.pl>;tag=1.
Call-ID: 1-6204(a)127.0.0.1.
CSeq: 1 INVITE.
Proxy-Authenticate: Digest realm="scscf.ims.touk.pl",
nonce="4587ea6059d5f141fce33748a3560a1eb274d934".
Server: Sip EXpress router (0.9.7-pre1 (x86_64/linux)).
Content-Length: 0.
Warning: 392 scscf.ims.touk.pl:5060 "Noisy feedback tells: pid=5453
req_src_ip=192.168.0.138 req_src_port=5060 in_uri=sip:tzl@scscf.ims.touk.pl
out_uri=sip:tzl@scscf.ims.touk.pl via_cnt==1".
.
#
U 2006/12/19 13:29:24.986124 192.168.0.138:5060 -> 192.168.0.74:5060
ACK sip:tzl@scscf.ims.touk.pl SIP/2.0.
Via: SIP/2.0/UDP 192.168.0.138:5061;branch=z9hG4bK-6204-1-4;rport.
To:
"tzl"<sip:tzl@scscf.ims.touk.pl>;tag=9463a2e9cf4445c72e97ac31aeb7f1ed.a61b.
From: "sippclient"<sip:sippclient@scscf.ims.touk.pl>;tag=1.
Call-ID: 1-6204(a)127.0.0.1.
CSeq: 1 ACK.
Subject: Performance Test.
Content-Length: 0.
.
#
U 2006/12/19 13:29:24.986124 192.168.0.138:5060 -> 192.168.0.74:5060
ACK sip:tzl@scscf.ims.touk.pl SIP/2.0.
Via: SIP/2.0/UDP 192.168.0.138:5061;branch=z9hG4bK-6204-1-4;rport.
To:
"tzl"<sip:tzl@scscf.ims.touk.pl>;tag=9463a2e9cf4445c72e97ac31aeb7f1ed.a61b.
From: "sippclient"<sip:sippclient@scscf.ims.touk.pl>;tag=1.
Call-ID: 1-6204(a)127.0.0.1.
CSeq: 1 ACK.
Subject: Performance Test.
Content-Length: 0.
.
there is olso one thing more when I used x-lite instead of the sipp as uac ser did't
forward the ACK.
Please help me with this one.
Bests tomek
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