I have a Mikrotik LHG 5 Wireless antenna… I want this 3 IP’s 10.0.9.10, 10.0.9.11, 10.0.9.12 to have full access to the device and I want to drop, all others IP on the network, how I can archive this please help, I new in Mikrotik devices sorry 
… and thanks for the help…
create an accept rule on the input chain, with 10.0..9.10-10.0.9.12 as the source address.
then create a drop-all rule for everything else.
Yes but how I do it, can you send an example please, I’m very new in Mikrotik sorry… and thanks!
/ip firewall filter add place-before=0 chain=input src-address=10.0.9.10-10.0.9.12
/ip firewall filter add chain=input action=drop
then remove any other input rules.