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Date:      Mon, 20 Jan 2003 16:38:25 -0600
From:      Dan Nelson <dnelson@allantgroup.com>
To:        Benjamin Lutz <benlutz@datacomm.ch>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: dc NIC: mac address gets reset (5.0-REL)
Message-ID:  <20030120223824.GJ49032@dan.emsphone.com>
In-Reply-To: <20030120215433.2bed4bb4.benlutz@datacomm.ch>
References:  <20030120215433.2bed4bb4.benlutz@datacomm.ch>

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In the last episode (Jan 20), Benjamin Lutz said:
> I just installed FreeBSD 5.0-RELEASE on a machine that was running
> 4.7-RELEASE-p3 before. I've got a problem with my network card:
> 
> After rebooting the system, it's MAC address is reset to
> C0:00:C0:00:C0:00. The card works fine otherwise (apart from some
> "dc: failed to force tx and rx to idle state" messages that are, as
> far as the mailing lists tell me, uncritical). This of course makes
> the DHCP server give me another than my standard IP. Also, if I
> install FreeBSD 5.0 on another machine in my LAN, and it shows the
> same behaviour, i'll run into problems.
> 
> I can manually change the MAC address back to its old value, then
> restart dhclient, and it works. However, I don't want to have to do
> that after every reboot...

I think this is a known problem.  You can probably work around it by
creating a file "/etc/start_if.dc0" with the single line:

  ifconfig dc0 ether 01:23:45:67:89:AB

That should force the mac address before dhcp starts up.

-- 
	Dan Nelson
	dnelson@allantgroup.com

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