From: Bill Davidsen <davidsen@tmr.com>
To: Jad Saklawi <jad@saklawi.info>
Cc: linux-kernel@vger.kernel.org, hisham@hisham.cc,
llug-users@greencedars.org
Subject: Re: Fwd: MAC / IP conflict
Date: Sun, 28 Mar 2004 22:58:16 -0500 [thread overview]
Message-ID: <40679ED8.1060502@tmr.com> (raw)
In-Reply-To: <405D239B.30602@mail.portland.co.uk>
Jad Saklawi wrote:
> ----- Forwarded message from Hisham Mardam Bey -----
> Date: Sun, 21 Mar 2004 13:52:59 +0200
>
> In short, I need to detect when someone on the network uses my MAC and
> my IP address.
>
> Longer story follows. I am on a LAN which might have some potentially
> dangerous users. Those users might spoof my MAC address and additionally
> use my IP address, thus forcing my box to go offline, and not be able to
> communicate with my gateway. What I need is a passive way to check for
> something of the sort, and perhaps a notofication into syslog (the
> latter is not very important).
Use arpwatch, it detects ALL changes of IP<=>MAC mapping.
--
bill davidsen <davidsen@tmr.com>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
next prev parent reply other threads:[~2004-03-29 3:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-21 5:09 Fwd: MAC / IP conflict Jad Saklawi
2004-03-21 17:48 ` Filippo Carone
2004-03-29 3:58 ` Bill Davidsen [this message]
2004-03-29 4:59 ` Willy Tarreau
2004-03-29 22:09 ` Bill Davidsen
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