MAC address

Richard Brodie R.Brodie at rl.ac.uk
Tue Sep 21 06:11:15 EDT 2004


"Grant Edwards" <grante at visi.com> wrote in message
news:414fa1ec$0$63273$a1866201 at newsreader.visi.com...

> Strictly speaking, the only MAC that is "valid" according to
> the IEEE spec is the one the manufacturer put into it. However,
> as long as you pick a MAC address that's not one of the special
> ones (broadcast or multicast addresses), you can probably just
> pick one at random.

Actually, you can legitimately set the 'locally administered address'
bit (the second bit on the wire). Then you have 2^46 addresses
to play with.





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