  All About MAC Addresses  Posted By On September 1, 2009 @
12:13 PM In Computer Terms | Comments Disabled  What is Your MAC
Address?  No it is not the address of your friendly neighborhood
McDonalds! Your MAC (Media Access Control ) address (also known
as your Ethernet Hardware Address (EHA), adapter address, or
physical address) is a unique identifier assigned, in most cases
physically printed, on most network adapters or NICs (Network
Interface Cards) or LAN (Local Area Network) cards and managed
by the IEEE (Institute of Electrical and Electronics Engineers)
in one of three spaces — EUI-48 (Extended Unique Identifier),
EUI-64, and MAC-48.  IP (Internet Protocol) addresses identify a
computer on the Internet or on a LAN. Computers or devices on
the same local area network may share the same IP address but
they are identified by their MAC address. For instance,
computers or devices in an office intranet are part of the
192.168.3.x subnet, with IP addresses like and The router that
connects that office to th