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Date:      Wed, 20 Dec 2000 11:18:12 -0500
From:      Daniel Hagan <dhagan@colltech.com>
To:        David Talkington <dtalk@prairienet.org>
Cc:        Chuck Rock <carock@epconline.net>, security@FreeBSD.ORG
Subject:   Re: What anti-sniffer measures do i have?
Message-ID:  <3A40DBC4.92D2F874@colltech.com>
References:  <Pine.LNX.4.30.0012192209100.2606-100000@sherman.spotnet.org>

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In the early/mid 90's there was a student at Virginia Tech who played
this stunt in a dorm and collected several hundred mail server
passwords.  Similar tricks can be played w/ DHCP.  A friend of mine did
a proof of concept attack against his friend in their dorm at Tech when
they rolled out DHCP there.

Daniel

David Talkington wrote:
> Play around with dsniff.  On my test network at home, with two
> workstations (A and B) and a gateway router (C) on a 10/100 switch,
> I've been able to convince A that B was its router, and view A's
> traffic before sending it on to C.  A putters away, and never even
> knows B is there.  It's kinda scary.


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