Granville Moore writes:
> In article <9410220208 .
com> you write:
> > Granville rites:
> > >Although this might help to track down individuals in some cases,
> > >it can't be relied upon. Some boards implement this address
> > >in hardware, but some allow it to be changed by software.
> > >It certainly shouldn't be used as a secure method of authentication.
> > True - on a VAX it is relatively easy (have written device drivers before 8*),
> > on a Sun it may be possible (sure someone will say if so, have only had
> > admin training), know of no way to do it on a PC or MAC without changing the
> > ROM.
> On the contrary - it is very easy to do on most PC cards. I have a small
> piece of software that has worked on every board that I've tried it on.
> It wouldn't surprise me if it's just as easy to do on a Mac. Suns might
> be more difficult, but I wouldn't rely on it!
> Granville Moore gvm @
> Nemesys Computer Consultants Ltd
> System Security Specialists
> I am not an accountant! I am a free man!
Simple to do on a Sun:
ifconfig le0 ether 8:0:20:x:y:z
or any other 6 byte string you'd care to use.
You can also achieve the same through access to /dev/nit and library
calls (which is of course how ifconfig does it).
Peter Samuel peter @
Technical Consultant or at present:
Uniq Professional Services Peter .
Phone: +61 2 339 3843 Fax: +61 2 339 3688