It may also be known as an Ethernet Hardware Address (EHA), hardware address, adapter address, or physical address. See also MAC address for more information.
99% of the time, yes. There is the ability on a network adapter to over-ride the mac-address that comes with it, but very rarely is that feature ever used.fm
Here's a better answer then I can give: http://wiki.answers.com/Q/How_do_you_get_mac_address In addition, in Mac OS 10.3 and above, you can also go to: Apple menu/About this Mac/More Info, click on...