[Network] MAC address

http://packetsdropped.wordpress.com/2011/01/13/mac-address-universally-or-locally-administered-bit-and-individualgroup-bit/
LAA: Locally Administered Address. You can use this for your private network.
UAA: Universally Administered Address.

Individual Address bit: Unicast address
Group Address bit: Multicast/Broadcast address

mac address: xY:xx:xx:xx:xx:xx
Y: 00[L/U][I/G]
[L/U]: 1: UAA, 0: LAA
[I/G]: 1: multicast/broadcast, 0: unicast

OUI: http://standards.ieee.org/develop/regauth/oui/oui.txt