Subject: Re: Changing MAC addresses?
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: Curt Sampson <>
List: port-alpha
Date: 06/17/2000 14:09:55
On Thu, 15 Jun 2000, der Mouse wrote:

> > Are you going to be adding facilities to the kernel so that we can
> > set hardware-level addresses for an interface in the same way that we
> > can set higher-level addresses?
> I wasn't intending to, but if enough Ethernet drivers come to support
> doing this, a userland interface to it certainly could be added.

I'd be happy to do the driver work for Tulip and 3com chips (the only
ones for which I have documentation), though it sounds like you're
already going to do the 3com. This would be a very good facility to have.

For others out there, I'd like to note that, though I've not looked at
huge numbers of Ethernet chips, I've never seen one that had a hard-wired
MAC address. Generally the driver for a particular board pulls an address
of of a PROM and programs the chip with it.

Curt Sampson  <>   917 532 4208
  Human speech is like a cracked tin kettle, on which we hammer out tunes
  to make bears dance when we long to move the stars.  --Gustave Flaubert