Change MAC address

ifconfig br-lan down

ifconfig eth0.1 down

ifconfig eth0.2 down

ifconfig eth0 down  

ifconfig eth0.1 hw ether 00:11:22:33:44:55 

ifconfig eth0.2 hw ether 00:11:22:33:44:55   

ifconfig eth0 hw ether 00:11:22:33:44:55   

ifconfig eth0 up  

ifconfig eth0.1 up

ifconfig eth0.2 up

ifconfig br-lan up

/etc/init.d/network restart

Edit /etc/config/network

add line to config interface lan section

option 'macaddr' '54:e6:aa:bb:cc:ee'