nameif − name network interfaces based on MAC addresses
nameif
[−c configfile] [−s]
nameif [−c configfile] [−s] {interface
macaddress}
nameif renames network interfaces based on mac addresses. When no arguments are given /etc/mactab is read. Each line of it contains an interface name and a Ethernet MAC address. Comments are allowed starting with #. Otherwise the interfaces specified on the command line are processed. nameif looks for the interface with the given MAC address and renames it to the name given.
When the −s argument is given all error messages go to the syslog.
When the −c argument is given with a file name that file is read instead of /etc/mactab.
nameif should be run before the interface is up, otherwise it’ll fail.
/etc/mactab
Only works for Ethernet currently.