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Ethernet address

   Also found in: Wikipedia 0.07 sec.

Ethernet address

A unique number assigned to each Ethernet network adapter. It is a 48-bit number maintained by the IEEE. Hardware vendors obtain blocks of numbers that they can build into their cards.

(networking)Ethernet address - (Or "MAC address") The physical address identifying an individual Ethernet controller board. An Ethernet addess is a 48-bit number aabbccddeeff where a-f are hexadecimal digits. The first 24 bits, aabbcc, identify the manufacturer of the controller. The Ethernet address is hard-wired on some controllers, stored in a ROM on some, and others allow it to be changed from software. It is usually written as six hexadecimal numbers, e.g. 08:00:20:03:72:DC.

See also ARP, Internet address.


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