Penetration Testing: Re: IP secondary network visualization tool?

[Chris Brenton <cbrenton () chrisbrenton org>]

Greets Chris,

On Wed, 2010-01-20 at 16:45 -0800, Christopher A. Jarosz wrote:
> the client was running multiple layer three subnets on the layer 
> two domain.
>
> Is there a tools like Cheops or ??? That I can use to discover these other
> subnets? 
With IPv4, active discovery is going to be difficult at best. The
simpliest solution is probably to run something like Arpwatch. It
monitors broadcasts traffic, and gives you the MAC/IP address pairing of
every detected system. The log entries will clearly show which subnets
are local.

HTH,
Chris
-- 
www.chrisbrenton.org


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