Sorry guys sending the message again but this time in plain text. The message
is blank on source forge. Hope it's going to work this time.
________________________________
From: Alexandre Cote
Sent: August 26, 2010 12:22 PM
To: sipp-users@lists.sourceforge.net
Subject: [Sipp-users] Multi socket or socket per IP address for my UAS?
Hi guys,
I need to simulate an UAS that will receive a call by two different devices
with obviously two different IP addresses. Each device establishes only one
call with the UAS. Also the UAS must be able to send requests (DTMF using sip
info) to these two devices. My UAS scenario is already fonctionnal when only
one device calls. However it doesn't work correctly when the two devices call
the UAS simultaneous (please see the Wireshark capture in attachment: Device
#1=192.168.7.158, Device#2=192.168.7.166, UAS=192.168.7.1). I'm using SIP UDP.
I think my problem is related to transport mode option. How do I need to start
my server:
UDP mono socket (-t u1):
I don't think it's this one.
UDP multi socket (-t un):
I tried with this one at first but when there was two simultaneous calls one of
the UAC returned a 405 Not allowed because the sip packet was sent to the
incorrect ip address. Please see Wireshark capture in attachment.
UDP with one socket per IP address (-t ui):
I tried this mode but I can't start the UAS. I have the following error: Unable
to bind main socket, errno = 99 (Cannot assign requested address).
I used this with the -inf option with the file:
SEQUENTIAL
192.168.7.166
192.168.7.158
These two IP addresses are the one of my two UACs.
I replaced the [local_ip] tag by [server_ip] in my uasScenario.xml as
mentionned in the doc.
Someone knows why I get the main socket binding error. Could you explain me how
this mode works? What is the difference between -t un and -t ui?
BTW I'm using the following sipp version:
SIPp v2.0-PCAP, version 20071128
The source code was taken from SIPp v3.0 folder. Is this normal that the
version doesn't match?
Thanks,
Alex
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