From owner-freebsd-questions  Sat Jun 23 16: 6:18 2001
Delivered-To: freebsd-questions@freebsd.org
Received: from shumai.marcuscom.com (rdu26-228-058.nc.rr.com [66.26.228.58])
	by hub.freebsd.org (Postfix) with ESMTP id D734C37B405
	for <freebsd-questions@FreeBSD.ORG>; Sat, 23 Jun 2001 16:06:15 -0700 (PDT)
	(envelope-from marcus@marcuscom.com)
Received: from localhost (marcus@localhost)
	by shumai.marcuscom.com (8.11.3/8.11.3) with ESMTP id f5NN6Mg15908;
	Sat, 23 Jun 2001 19:06:22 -0400 (EDT)
	(envelope-from marcus@marcuscom.com)
X-Authentication-Warning: shumai.marcuscom.com: marcus owned process doing -bs
Date: Sat, 23 Jun 2001 19:06:21 -0400 (EDT)
From: Joe Clarke <marcus@marcuscom.com>
To: Francisco Reyes <freyes@drf.com>
Cc: "freebsd-questions@freebsd.org" <freebsd-questions@FreeBSD.ORG>
Subject: Re: Retaining same MAC (Re: Need help configuring ethernet DSL modem)
In-Reply-To: <200106232259.SAA06400@mx3.drf.com>
Message-ID: <20010623190548.E8873-100000@shumai.marcuscom.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-questions.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo?subject=subscribe%20freebsd-questions>
List-Unsubscribe: <mailto:majordomo?subject=unsubscribe%20freebsd-questions>
X-Loop: FreeBSD.ORG

Yes, by default FreeBSD uses the burned-in address on the card.  This is
not something you should ever really need to worry with.

Joe Clarke

On Sat, 23 Jun 2001, Francisco Reyes wrote:

> On Sat, 23 Jun 2001 18:47:38 -0400 (EDT), Joe Clarke wrote:
>
> >However, you can use ifconfig to change your MAC address to whatever you
> >like.
>
> By default FreeBSD leaves this along right?
>
>
> >  As you can imagine, this can be quite bad if you choose one that is
> >not unique on your broadcast domain.  However, this can be useful if you
> >have to replace your ethernet card with a new one, but need to keep your
> >same MAC.  To do this, do the following while in a fairly idle network
> >state (like SU mode):
>
>
> >ifconfig <interface> ether <address>
> >arp -a -d
> >Now, when your ARP cache refreshes, your IP address will be bound to the
> >given MAC address.
>
> Thanks for the info. Will keep it handy for reference.
>
>
>
> Francisco Reyes
> Daily Racing Form
> Technical Support Manager
> freyes@drf.com
> (212) 366-7752
>
>
>
>
>


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message