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Date:      Thu, 25 Jan 2007 08:22:17 -0600
From:      Kevin Kinsey <kdk@daleco.biz>
To:        Tek Bahadur Limbu <teklimbu@wlink.com.np>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Blocking traffic by Mac address using IPFW
Message-ID:  <45B8BD19.8080705@daleco.biz>
In-Reply-To: <20070125154549.236dca3f.teklimbu@wlink.com.np>
References:  <20070125154549.236dca3f.teklimbu@wlink.com.np>

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Tek Bahadur Limbu wrote:
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> 
> Dear All,
> 
> I need some help regarding using IPFW to block specific MAC addresses.
> How do I block incoming traffic by a MAC address instead of an IP
> address.
> 
> Can this be done using IPFW? Since I am quite new to FreeBSD, can
> somebody shed some light on this issue?

Yes, it appears that ipfw(8) can do this --- check the manpage (quite a 
ways down, in the RULE OPTIONS section [ about byte 45000] for full 
details; note also that there may be other issues involved.  Here is a 
short thread on the subject from a couple of years ago:

http://lists.freebsd.org/pipermail/freebsd-ipfw/2004-September/001375.html

Disclaimer: IANAE, and don't play one on television ;-)

HTH,

Kevin Kinsey
-- 
Heisenberg may have been here.



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