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How is the MAC address stored?

Posted on 2009-05-07
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Last Modified: 2013-11-09
Is the MAC Address stored in the NIC's "firmware"?  How is the value physically stored on the NIC?
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Question by:jdana
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Expert Comment

by:paulsolov
ID: 24330616
The MAC address is normally hardwired on the NIC.  There is software you can use to spoof the MAC Address that is OS based.
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Don Johnston earned 250 total points
ID: 24330770
The MAC is stored in ROM on the NIC. During initialization, the MAC address is copied from ROM to the address buffer in RAM.
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Author Closing Comment

by:jdana
ID: 31582346
Thanks!
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