Sure you can alter the MAC address. That doesn't exempt you from whatever
licensing restrictions are on your software but it does give you bit more
control so perhaps you can move it to another NIC without requiring a
phone call or whatever your vendor supports.

Josh

On Mon, 16 Jul 2001, Matthew LaBerge wrote:

> There are a lot of software manufacturers that would shit their pants if a
> card existed that could do this.  I'd be able to get Pro/Engineer running on
> my system for free then. Somehow I don't think PTC would like that, I
> wouldn't like it either seeing as my company pays $20,000 a year to use the
> software.  Very unsettling to hear this.
>
> -----Original Message-----
> From: tclug-list-admin at mn-linux.org [mailto:tclug-list-admin at mn-linux.org]On
> Behalf Of Phil Mendelsohn
> Sent: Monday, July 16, 2001 11:30 AM
> To: tclug-list at mn-linux.org
> Subject: Re: [TCLUG] MAC addresses
>
> On Mon, 16 Jul 2001, Nate Carlson wrote:
>
> > Some cards do allow you to change your MAC address.
> >
> > If the card supports it, the command:
> >
> > ifconfig eth0 hw ether nn:nn:nn:nn:nn:nn
> >
> > will do it.
>
> Can one of you network gurus explain how this is legal, by Ethernet specs?
> I'm a little out of date, but MAC addresses were supposed to be sacrosanct
> physical IDs that are unique for each card.  Of course this was late 70's
> or early 80's, and there was no danger of running out of them!
>
>
> I thought changing MAC would carry the possibility that you might end up
> with very low-level net problems, if you're exposed (i.e., what if you
> grab someone else's MAC.)  I also thought they were issued by a standards
> body to manufacturers, but it seems I have a little to learn.
>
> --
> "To misattribute a quote is unforgivable." --Anonymous
>
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