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Date: Sun, 23 Dec 2012 14:17:43 +0100
From: Patrick Lamaiziere <patfbsd@davenulle.org>
To: Eugen Konkov <kes-kes@yandex.ru>
Subject: Re: bind 192.168.1.1 to all interfaces
Message-ID: <20121223141743.16b526d5@davenulle.org>
In-Reply-To: <141032435.20121223141747@yandex.ru>
References: <141032435.20121223141747@yandex.ru>
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Le Sun, 23 Dec 2012 14:17:47 +0200,
Eugen Konkov <kes-kes@yandex.ru> a écrit :

Hello,

> Or  s there any other method to prevent such ilegal DHCP servers on
> LAN?

At work we use "dhcp_probe"
http://www.net.princeton.edu/software/dhcp_probe/

It works quite fine, when someone plug a dhcp server it is detected and
we shutdown the switch port.

I don't know if it runs on FreeBSD, it runs on Centos 6.

Regards.