[Asterisk-Users] Network Sniffing Calls for recording

[Steve]

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On Monday 07 June 2004 06:29 pm, Chris Albertson wrote:
> Many people use "ethereal" to capture network packets.  I've used
> it to debug SIP sessions.
>
> www.ethereal.com/
>
> In theory one could re-contruct a phone converstion from logged
> packets but it might take some effort and you'd need to be
> pretty smart to find the packets from "a call from Joe early
> last week in the morning some time."

Not really hard. If you have his IP. Of course the first problem is that 
unless you are recording all the time you cannot go back to some point in the 
past.

However, if you did record traffic you can filter it on f.ex port 4359. You 
could see how much traffic you have at any point in time. The latest version 
even let's you graph it live.

You could also run tcpdump to a file and review it later, but ethereal is much 
more powerful, and with the filtering abilities you can be as specific as you 
want.

As far as following a conversation it can also follow a network session.

- -- 
Steve

"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
                                Benjamin Franklin

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