How to Wake on lan?

I have already read your comments here. i have used these commands

/usr/bin/etherwake -D -b "70:85:C2:8E:C4:2D"
/usr/bin/etherwake -D -i "br-lan" -b "70:85:C2:8E:C4:2D"
/usr/bin/etherwake -D -i br-lan -b 70:85:C2:8E:C4:2D

They don't work.

And just for fun i tried so many more but nothing