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Date:      Sun, 7 Dec 2003 21:15:59 -0600 (CST)
From:      Mike Silbersack <silby@silby.com>
To:        Dan Constantinescu <gonzo@gamebox.net>
Cc:        freebsd-net@freebsd.org
Subject:   Re: Translate MAC address to IP address
Message-ID:  <20031207211448.D96687@odysseus.silby.com>
In-Reply-To: <000601c3bd22$eea7fbf0$0a00a8c0@Nass>
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On Mon, 8 Dec 2003, Dan Constantinescu wrote:

> My name is Dan , and i would ask you for help...how can i filter users
> from a LAN to acces internet throuh a freebsd server (i've installed it)
> by MAC? Or i need a script to bind ip to mac? Thank's Dan.


If you're running a recent release of freebsd (4.8 or later should do),
you can recompile your kernel with IPFW2, which supports filtering by mac
addresses; see the ipfw manpage for more information.

IPFW2 is the default in 5.x, so you wouldn't need to recompile if you're
running 5.x.

Mike "Silby" Silbersack
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