Hi Maxime,
this is a SIPp limitation. As SIPp doesn't have a true SIP stack, it will
send to the IP address you provided on the command line.
You might want to have a look at "3PCC" feature where you can create several
SIPp to send messages to different IP addresses.
Olivier.
On 5/14/07, Guillaume Maxime <[EMAIL PROTECTED]> wrote:
Hi,
I'm a Newbie with Sipp and SIP, so it's probably a very stupid question
;-)
So, sipp is my caller and I use an equipment in front of it.
Sipp sends an INVITE
INVITE sip:[EMAIL PROTECTED]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.165.98.16:5060;branch=z9hG4bK-1-0
From: 20000133875800989 <sip:[EMAIL PROTECTED]:5060>;tag=1
To: 0875898532 <sip:[EMAIL PROTECTED]>
Call-ID: [EMAIL PROTECTED]
CSeq: 1 INVITE
Contact: sip:[EMAIL PROTECTED]:5060
Max-Forwards: 70
Subject: Performance Test
Content-Type: application/sdp
Content-Length: 131
v=0
o=- 53655765 2353687637 IN IP4 10.165.98.16
s=-
c=IN IP4 10.165.98.16
t=0 0
m=audio 6000 RTP/AVP 8
a=rtpmap:8 PCMA/8000
I recieve a 200 OK like this :
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.165.98.16:5060;branch=z9hG4bK-1-0
From: "20000133875800989" <sip:[EMAIL PROTECTED]>;tag=1
To: "0875898532" <sip:[EMAIL PROTECTED]>;tag=043da8c0-00000410-o-1
Call-ID: [EMAIL PROTECTED]
CSeq: 1 INVITE
Contact: <sip:[EMAIL PROTECTED]:50604>
Content-Type: application/sdp
Content-Length: 135
v=0
o=user1 53655765 2353687637 IN IP4 10.165.98.18
s=-
c=IN IP4 10.165.98.18
t=0 0
m=audio 6044 RTP/AVP 8
a=rtpmap:8 PCMA/8000
And sipp sends the ACK to 10.165.98.10:5060 and not to the contact address
(10.165.98.10:50604)
17:20:54.320293 IP 10.165.98.16.5060 > 10.165.98.10.5060: UDP, length 413
[EMAIL PROTECTED]@._.
.b.
.b
........ACK sip:[EMAIL PROTECTED]:50604 SIP/2.0
Via: SIP/2.0/UDP 10.165.98.16:5060;branch=z9hG4bK-1-5
From: 20000133875800989 <sip:[EMAIL PROTECTED]:5060>;tag=1
To: 0875898532 <sip:[EMAIL PROTECTED]
:50604>;tag=043da8c0-00000410-o-1
Call-ID: [EMAIL PROTECTED]
CSeq: 1 ACK
Contact: sip:[EMAIL PROTECTED]:5060
Max-Forwards: 70
Subject: Performance Test
Content-Length: 0
Why Sipp does not send the ACK to the contact address ?
In a script, I have defined a ACK message like this :
<send>
<![CDATA[
ACK [next_url] SIP/2.0
Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
From: [field0] <sip:[EMAIL PROTECTED]:[local_port]>;tag=[call_number]
To: [field1] <[next_url]>[peer_tag_param]
Call-ID: [call_id]
CSeq: 1 ACK
Contact: sip:[EMAIL PROTECTED]:[local_port]
Max-Forwards: 70
Subject: Performance Test
Content-Length: 0
]]>
</send>
Help please
Thanks in advance !
*Maxime GUILLAUME*
Integration Engineer
Netcentrex Converged IP Communications
*Comverse*
[EMAIL PROTECTED]
www.comverse.com
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