Hi Paul,
You need to add “CSeq:” header. So, could you re-test the scenario with
following 200 OK:
<send>
<![CDATA[
SIP/2.0 200 OK
Via: SIP/2.0/[transport] [remote_ip]:[remote_port];[$PRKbranch]
[last_From:]
[last_To:]
Date: [date]
[last_Call-ID:]
Server: Cisco-SIPGateway/IOS-15.3.2.T
CSeq: [$PRKcseq]
Content-Length: 0
]]>
</send>
On 03 Oct 2014, at 22:44, Paul Miller
<[email protected]<mailto:[email protected]>> wrote:
Hi there,
I am trying to get the CSeq number from a UAS transaction in fact a PRACK
message, I have tried many regex and have finally realised there is something
else going on. As you can see below the branch parameter is being handled
correctly but the CSeq header is not, ideas?
XML Extract:
<!--
PRACK transaction initiated by Network
-->
<recv request="PRACK">
<action>
<ereg regexp="[Bb]ranch=(.*)" search_in="hdr" header="Via:"
check_it="true" assign_to="PRKbranch" />
<ereg regexp=":\s+(.*)@" search_in="hdr" header="From:" check_it="true"
assign_to="INVFromUser" />
<ereg regexp=".*" search_in="hdr" header="To:" check_it="true"
assign_to="INVTo" />
<ereg regexp=".*" search_in="hdr" header="CSeq:" check_it="true"
assign_to="PRKcseq" />
</action>
</recv>
<!--
200 OK (PRACK)......
-->
<send>
<![CDATA[
SIP/2.0 200 OK
Via: SIP/2.0/[transport] [remote_ip]:[remote_port];[$PRKbranch]
[last_From:]
[last_To:]
Date: [date]
[last_Call-ID:]
Server: Cisco-SIPGateway/IOS-15.3.2.T
[$PRKbranch]
[$PRKcseq]
Content-Length: 0
]]>
</send>
The 200 OK from wireshark (note the Branch is there twice once as a parameter
of the via hdr and once on the base message (correct) but the Cseq line is not
there at all)
SIP/2.0 200 OK
Via: SIP/2.0/UDP
192.168.0.65:5060;branch=z9hG4bKPjb7d0a29d01fc4f308efa40f0cfea6a76
From: "Paul"
<sip:[email protected]<mailto:sip%[email protected]>>;tag=aa189dfaa2904bf78deb3c90e81776a0
To: <sip:[email protected]<mailto:sip%[email protected]>>;tag=1
Date: Thu, 02 Oct 2014 04:23:41 GMT
Call-ID: eecb48282c5e413c9dce2439bfdde27b
Server: Cisco-SIPGateway/IOS-15.3.2.T
branch=z9hG4bKPjb7d0a29d01fc4f308efa40f0cfea6a76
Content-Length: 0
Thanks
Paul
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