On a local area network (LAN
) or other network, the MAC (Media Access Control) address is your computer's unique hardware number. (On an Ethernet LAN
, it's the same as your Ethernet address.) When you're connected to the Internet from your computer (or host as the Internet protocol thinks of it), a correspondence table relates your IP address to your computer's physical (MAC) address on the LAN
. The MAC address is used by the Media Access Control sublayer of the Data-Link Layer (DLC) layer of telecommunication protocol. There is a different MAC sublayer for each physical device type. The other sublayer level in the DLC layer is the Logical Link Control sublayer.
Vendor/Ethernet MAC Address Lookup and Search∞