full-disclosure - tcpdump logfile viewer

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Message-ID: <4496A451.3090700@csuohio.edu>
Date: Mon Jun 19 14:18:35 2006
From: michael.holstein at csuohio.edu (Michael Holstein)
Subject: tcpdump logfile viewer

> Are there any viewers for tcpdump log files ?
>  
> 1)
>     a) On Linux

tcpdump -r /some/file

>     b) on Windows

tcpdump -r /some/file

>     c) as an HTML server

Not offhand, but it'd be trivial to write a CGI to do this. An easy 
cheat would be to write a snort rule to log everything, run the packets 
through snort with -r, log them to mysql, and use ACID to look at them. 
This will be one-packet-per-page, though. Probably better to wrap 
tethereal with a CGI script or some-such though.

> 2)
>     a) text dump file

tcpdump -Xr /some/file

>     b) binary dump file

hexedit /some/file

As someone already pointed out, if you want a nice GUI to look at them 
(and do advanced protocol decodes) use Ethereal (or tethereal for text 
output). Note that the display expressions in [t|e]thereal are different 
than the BPF expressions used to capture.

Cheers,

Michael Holstein CISSP GCIA
Cleveland State University