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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'>Hello,<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'>With an understanding of Wireshark and/or PCAP file structure and a
little Perl magic you can whip up a simple script in less than 100 lines which
will pull the exact information you&#8217;re looking for from existing PCAP
files.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'>As for real-time capturing, I can&#8217;t speak with any
familiarity for Alex&#8217;s product however I can say that scalability of any solutions
for real-time capturing/analysis without any type of ASICs or custom hardware have
limited scalability, especially if you&#8217;re capturing all signalling and media
for all call legs for several thousands of simultaneous calls at once in a
multi-protocol VoIP environment.&nbsp; We have had to rely on a commercial
hardware/software vendor solution in order to capture larger volumes of traffic
without loss.&nbsp; You can still pull a decent solution together without a
full commercial solution using a special NIC, carefully tuned PCAP filters, and
a sufficiently distributed L2 switching network.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'>Regards,<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'><o:p>&nbsp;</o:p></span></p>

<div>

<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:blue'>Justin
Randall</span><span style='color:blue'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'>Team Leader - VoIP Engineering</span><span style='font-family:"Calibri","sans-serif";
color:blue'><o:p></o:p></span></p>

</div>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:blue'>Comwave Telecom Inc.</span><span style='font-size:10.0pt;
font-family:"Calibri","sans-serif";color:blue'><o:p></o:p></span></p>

<div>

<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>

<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>
voiceops-bounces@voiceops.org [mailto:voiceops-bounces@voiceops.org] <b>On
Behalf Of </b>Brooks Bridges<br>
<b>Sent:</b> June-23-10 2:23 PM<br>
<b>To:</b> 'Lee Riemer'; voiceops@voiceops.org<br>
<b>Subject:</b> Re: [VoiceOps] Splitting SIP+RTP PCAP files<o:p></o:p></span></p>

</div>

</div>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>It does not.&nbsp; We didn&#8217;t see a need for that, as we
use it as a real-time &#8220;backlog&#8221; of calls for troubleshooting.<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<div>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Brooks R. Bridges<o:p></o:p></span></i></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Telecommunications Manager<o:p></o:p></span></i></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Ifbyphone, Inc.<o:p></o:p></span></i></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Phone: (847) 983-3000<o:p></o:p></span></i></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Fax: (847) 676-6553<o:p></o:p></span></i></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>bbridges@ifbyphone.com<o:p></o:p></span></i></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>http://www.ifbyphone.com<o:p></o:p></span></i></p>

</div>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<div>

<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>

<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'>From:</span></b><span lang=EN-US
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>
voiceops-bounces@voiceops.org [mailto:voiceops-bounces@voiceops.org] <b>On
Behalf Of </b>Lee Riemer<br>
<b>Sent:</b> Wednesday, June 23, 2010 12:18 PM<br>
<b>To:</b> voiceops@voiceops.org<br>
<b>Subject:</b> Re: [VoiceOps] Splitting SIP+RTP PCAP files<o:p></o:p></span></p>

</div>

</div>

<p class=MsoNormal><span lang=EN-US><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span lang=EN-US>Will it work on data already captured in
.pcap files?<br>
<br>
On 6/23/2010 12:07 PM, Brooks Bridges wrote: <o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The utility was written by Alex as a replacement for
pcapsipdump.&nbsp; pcapsipdump suffers from severe performance and stability
problems with any appreciable traffic.</span><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I can vouch that Alex&#8217;s utility is very stable and
efficient, but I do have to take exception to the &#8220;inexpensive (read:
basically free!)&#8221; statement, as the utility is wholly owned (as per work-for-hire
agreement) by Ifbyphone, Inc.</span><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Please contact me off-list if you would like to discuss using
the utility.&nbsp; I do not believe there is an issue with us releasing the
utility &#8220;free as in beer&#8221;, however I am not the one that can
authorize such a release.&nbsp; I will have to confirm this with our upper
management.</span><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks</span><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span lang=EN-US><o:p></o:p></span></p>

<div>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Brooks R. Bridges</span></i><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Telecommunications Manager</span></i><span
lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Ifbyphone, Inc.</span></i><span lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Phone: (847) 983-3000</span></i><span
lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'>Fax: (847) 676-6553</span></i><span
lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'><a href="mailto:bbridges@ifbyphone.com">bbridges@ifbyphone.com</a></span></i><span
lang=EN-US><o:p></o:p></span></p>

<p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:
"Cambria","serif";color:#1F497D'><a href="http://www.ifbyphone.com">http://www.ifbyphone.com</a></span></i><span
lang=EN-US><o:p></o:p></span></p>

</div>

<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;</span><span lang=EN-US><o:p></o:p></span></p>

<div>

<div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0cm 0cm 0cm;
border-color:-moz-use-text-color -moz-use-text-color'>

<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> <a
href="mailto:voiceops-bounces@voiceops.org">voiceops-bounces@voiceops.org</a> [<a
href="mailto:voiceops-bounces@voiceops.org">mailto:voiceops-bounces@voiceops.org</a>]
<b>On Behalf Of </b>Darren Schreiber<br>
<b>Sent:</b> Wednesday, June 23, 2010 11:58 AM<br>
<b>To:</b> Nicholas Sten; Kristian Kielhofner<br>
<b>Cc:</b> <a href="mailto:voiceops@voiceops.org">voiceops@voiceops.org</a><br>
<b>Subject:</b> Re: [VoiceOps] Splitting SIP+RTP PCAP files</span><span
lang=EN-US><o:p></o:p></span></p>

</div>

</div>

<p class=MsoNormal><span lang=EN-US>&nbsp;<o:p></o:p></span></p>

<pre><span lang=EN-US style='font-family:"Tahoma","sans-serif"'>What's wrong with pcapsipdump? You can pipe input into that I believe... its an old tool but it still works. :-)</span><span
lang=EN-US><o:p></o:p></span></pre><pre><span lang=EN-US style='font-family:
"Tahoma","sans-serif"'>&nbsp;</span><span lang=EN-US><o:p></o:p></span></pre><pre><span
lang=EN-US style='font-family:"Tahoma","sans-serif"'>Nicholas Sten <a
href="mailto:nicksten@gmail.com">&lt;nicksten@gmail.com&gt;</a> wrote:</span><span
lang=EN-US><o:p></o:p></span></pre><pre><span lang=EN-US style='font-family:
"Tahoma","sans-serif"'>&nbsp;</span><span lang=EN-US><o:p></o:p></span></pre>

<div>

<p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US>Kristian,<br>
<br>
Alex has an elegant and inexpensive (read: basically free!) solution that you
might want to check out.&nbsp; Here's a brief description (I've culled from a
personal email, so I hope I don't misrepresent it)<br>
<br>
<i>So I wrote a highly parallelised, multithreaded tool that runs on such a
&quot;capture box&quot; and listens to SIP traffic intelligently.&nbsp; It
automatically identifies the media ports involved in a call and records both
SIP and RTP to distinct capture files in a dated directory hierarchy separated
by day and hour.&nbsp; The capture file contains the date, time, ANI, DNIS and
Call-ID.</i><br>
<br>
You should give him a shout: Alex Balashov &lt;<a
href="mailto:abalashov@evaristesys.com">abalashov@evaristesys.com</a>&gt;<br>
<br>
I can vouch for the quality and effectiveness of his solutions.<br>
<br>
-N<br>
<br>
<o:p></o:p></span></p>

<div>

<p class=MsoNormal><span lang=EN-US>On Wed, Jun 23, 2010 at 9:02 AM, Kristian
Kielhofner &lt;<a href="mailto:kristian.kielhofner@gmail.com">kristian.kielhofner@gmail.com</a>&gt;
wrote:<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US>Hello everyone,<br>
<br>
&nbsp;Does anyone know of a tool to split PCAP files that is SIP+RTP<br>
aware? &nbsp;Ideally I'd be able to record a PCAP file with any number of<br>
calls and then have a utility split that file into each separate call?<br>
&nbsp;I'm pretty sure I've seen a utility to do this, I just can't remember<br>
the name...<br>
<br>
Thanks!<br>
<br>
--<br>
Kristian Kielhofner<br>
<a href="http://www.astlinux.org" target="_blank">http://www.astlinux.org</a><br>
<a href="http://blog.krisk.org" target="_blank">http://blog.krisk.org</a><br>
<a href="http://www.star2star.com" target="_blank">http://www.star2star.com</a><br>
<a href="http://www.submityoursip.com" target="_blank">http://www.submityoursip.com</a><br>
<a href="http://www.voalte.com" target="_blank">http://www.voalte.com</a><br>
_______________________________________________<br>
VoiceOps mailing list<br>
<a href="mailto:VoiceOps@voiceops.org">VoiceOps@voiceops.org</a><br>
<a href="https://puck.nether.net/mailman/listinfo/voiceops" target="_blank">https://puck.nether.net/mailman/listinfo/voiceops</a><o:p></o:p></span></p>

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<pre><span lang=EN-US><o:p>&nbsp;</o:p></span></pre><pre><span lang=EN-US><o:p>&nbsp;</o:p></span></pre><pre><span
lang=EN-US>_______________________________________________<o:p></o:p></span></pre><pre><span
lang=EN-US>VoiceOps mailing list<o:p></o:p></span></pre><pre><span lang=EN-US><a
href="mailto:VoiceOps@voiceops.org">VoiceOps@voiceops.org</a><o:p></o:p></span></pre><pre><span
lang=EN-US><a href="https://puck.nether.net/mailman/listinfo/voiceops">https://puck.nether.net/mailman/listinfo/voiceops</a><o:p></o:p></span></pre><pre><span
lang=EN-US>&nbsp; <o:p></o:p></span></pre></div>

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