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Date:      Thu, 1 Nov 2001 13:42:17 -0500 (EST)
From:      Dru <genisis@istar.ca>
To:        <freebsd-questions@FreeBSD.ORG>
Subject:   Re: arp kernel message - unknown hardware address format?
Message-ID:  <20011101131953.E84072-100000@x1-6-00-50-ba-de-36-33.kico1.on.home.com>
In-Reply-To: <20011101112752.A96313@keyslapper.org>

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On Thu, 1 Nov 2001, Louis LeBlanc wrote:

> Hey all.  Quick question about a kernel message I'm seeing on a fairly
> regular basis.
>
> Oct 29 18:17:05 acadia /kernel: arp: unknown hardware address format (0x0800)
> Oct 31 08:50:04 acadia /kernel: arp: unknown hardware address format (0x0800)
> Oct 31 12:05:28 acadia /kernel: arp: unknown hardware address format (0x0800)
> Nov  1 08:55:50 acadia /kernel: arp: unknown hardware address format (0x0800)
>
> I don't know just what it means.
>
> The only  things I can think  of would be  a bad nic (bad,  since it's
> onboard - but under warranty) or a  little trick I play to get my DHCP
> lease  from my  ISP.  For that  I use  the  /etc/start_if.xl0 with  an
> ifconfig xl0  ether 00:aa:11:22:33:44  kind of command  to set  my MAC
> address.
>
> Of course, I'm no guru (FreeBSD  or network) so I thought someone here
> might know.

Hi Louis,

Looks like that NIC received an Ethernet_II frame that didn't contain an
IP packet (which is type 0x0800). As to the why, do a search of the
mailing lists for "0x0800".

If you want to learn to become a frame guru or just want to know the
Ethernet_II type codes, they can be found here:

http://collusion.org/Article.cfm?ID=205

Happy reading,

Dru


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