A MAC address consists of 48 bits, usually represented as a string of 12 hexadecimal digits ( 0 to 9, a to f, or A to F) these are often grouped into pairs separated by colons or dashes. It is an abbreviation of “Media Access Control” and is supported by all modern computer hardware.Ī MAC address is an essentially unique number associated with a network card in a machine it serves as a convenient way to distinguish between two different computers. What should I do?įirst note that a MAC address has nothing to do with Mac OS X or Macintosh computers. I replaced or upgraded my hardware, and now my MAC address is different.The order form complained about a bad MAC address.I don't have a MAC address! What can I do?.
