If you didn't changed to much in the wan section in /etc/config/network you can run the commands below to change the wan MAC address.
Code:
1.Should work on Backfire version
Which of them are lan or wan interfaces I don't know =) just try each commands one after another and see what heppens in /etc/config/network
nvram set il0macaddr=xx:xx:xx:xx:xx:xx
nvram set et0macaddr=xx:xx:xx:xx:xx:xx
nvram commit
or
2.Just add line to the corresponding "config interface" section in /etc/config/network
"option macaddr xx:xx:xx:xx:xx:xx"
or
3.Should work on whiterussia version
uci set network.wan.macaddr="xx:xx:xx:xx:xx:xx"
uci commit network
ifdown wan && ifup wan
First method(1) works best for me.
