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Re: IP to MAC mapping
From: Jon <warchild () spoofed org>
Date: Fri, 22 Nov 2002 14:35:28 -0500

On Wed, Nov 20, 2002 at 06:49:47PM +0100, Johan Denoyer wrote:
Hi,

we are currently looking into illegal usage of a protected network. We are
managing a class C network, and we would like to be able to detect illegal
usage of the network by finding the MAC address of the ip address used and
then checking it against a database.

Now I would like to find a software or a perl scrip that would do the work.
(The budget that we have is 0$, so freeware is likely to be the solution)

I have tried doing searches using google without any luck. If anyone uses
such software, please tell me which one, and where I can find it.

Arpwatch and arpping would be my suggestion:

ftp://ftp.ee.lbl.gov/arpwatch.tar.gz
http://ftp.cerias.purdue.edu/pub/tools/unix/netutils/arping/arping-1.04.tar.gz 


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