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Date:      Fri, 10 Dec 1999 11:15:25 -0500
From:      Mitch Collinsworth <mkc@Graphics.Cornell.EDU>
To:        Loren Koss <loren@pciway.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: BOOTP/TFTP.. 
Message-ID:  <199912101615.LAA11483@benge.graphics.cornell.edu>
In-Reply-To: Message from Loren Koss <loren@pciway.com>  of "Fri, 10 Dec 1999 07:08:28 PST." <Pine.BSF.4.10.9912100706120.25491-100000@unix.pciway.com> 

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>Sorry if this message comes over twice, I posted it last night and never
>received a confirmation or saw it appear.  Can someone give me a hand.  I
>did a little more research and see that DHCPD does some sort of BOOTP for
>backwards compatibility.  What about the fact that I don't know the MAC
>address for this new hub?  Is there a way I can find that out?  I tried
>ARP but it doesn't know it.

The arp cache won't show it until after you've opened an IP connection
to it, so that method is a catch-22.  If the mac address isn't printed on
the device or in the documentation that came with it, one way to get it is
to fire it up with bootp and then look in your bootpd or dhcpd log.  If
you're running ISC dhcpd the log will have entries like this:

Dec  6 08:31:35 bach dhcpd: BOOTREQUEST from 08:00:09:48:6c:84 via fxp0
Dec  6 08:31:35 bach dhcpd: No applicable record for BOOTP host 08:00:09:48:6c:84 via fxp0

bootpd logs something similar and hopefully so do other servers.

-Mitch


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