Restrictions on MAC Addresses

Question

I programmed a MAC address generator quite a while ago and I've lost the source code. While I programmed it, I distinctly remember that there were certain rules that needed to be followed to generate a MAC address, but I can't find them.

I think it was something like the second character needs to be 0 or something along those lines.

http://en.wikipedia.org/wiki/MAC_address – Jason May 01 '13 at 01:28 — Jason, May 01 '13 at 01:28

score 0 · Accepted Answer · answered May 01 '13 at 01:27

0

The first bit needs to be zero for a unicast address. For a multicast address, that bit must be 1.

answered May 01 '13 at 01:27

John Saunders

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Thank you. You saved me quite a bit of confusion. – user2338003 May 01 '13 at 01:45

Restrictions on MAC Addresses

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