ETTERCAP

https://github.com/Ettercap/ettercap

Basis

ettercap -T -S -i wlan0 -M arp:remote /[ROUTER_IP]// /[TARGET_IP]//

Flags

-T
Text Only (no GUI). 

-S
Do no use SSL.

-i wlan0
Specify interface.

-M
Man In The Middle Attack.

arp:remote
Attack Method.