This file maps MAC address to device name.
'''Example'''
<small>
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:1d:60:b5:43:66", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
if it has the MAC address for the device in it (e.g. in a variable called HWADDR).
=='''Example=='''
HWADDR=00:1d:60:b5:43:66