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Re: tcpdump logfile viewer
From: Michael Holstein <michael.holstein () csuohio edu>
Date: Mon, 19 Jun 2006 09:19:13 -0400

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

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