@Mohammad Muid

well if you want to get the full bandwidth (which i usually do with my bro)

you have 2 ways to do that :

1- using aireplay and deauth other clients but you
(aireplay is usable with the same wireless card you are connected with to the internet, but mon0 must be on the same channel as wlan0 or your AP you are connected to)
this will disconnect them from the whole AP


2-(RECOMMENED) using arpspoof -i wlan0 (router's ip)
without enabling ip forward !!!
this will let others connected but they cannot use the net unless somekinda tunnel
-- now why this one is recommened
because they will less suspect of any problem
in other words : they will not restart their router
NOTE: their refers to your family router or so

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wifi what ?
didn't notice this script till now

well according to what i read
it still doesn't support many attacks to mdk3 unlike wifi-pwner