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Date:      Sat, 23 Jun 2001 19:00:50 -0400
From:      Justin C Sherrill <justin@shiningsilence.com>
To:        questions@freebsd.org
Cc:        "Francisco Reyes" <freyes@drf.com>
Subject:   Re: Retaining same MAC (Re: Need help configuring ethernet DSL modem)
Message-ID:  <01062319005000.00853@roc-24-169-96-227.rochester.rr.com>
In-Reply-To: <200106232228.SAA06370@mx3.drf.com>
References:  <200106232228.SAA06370@mx3.drf.com>

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On Saturday 23 June 2001 18:32, you wrote:

> After many, many hours troubleshooting  why a FreeBSD
> machine could not connect it turns out the ISP uses MAC
> based authentication. I had first connected the DSL modem
> to a different machine so the authentication was failing.
>
> Does the MAC address ever change unless I change the
> hardware?

It may be possible to unplug the DSL modem's power cord and replug it in; it 
could be the most recent MAC address is always stored in memory, and the 
modem can't differentiate between a second computer and a replacement 
computer.  If it is stored in the DSL modem, powering it down should make it 
"lose track" of the MAC address and take the new one.  

If it's stored on the DSL provider's system, you can probably call the DSL 
provider (may be a hassle explaining this) or do some of the changes others 
have suggested to change the apparent MAC.

Justin

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