Mikrotik: Blocking Unleased DHCP IP Address

The case this time is how we block users other than DHCP Client with Mikrotik Winbox, in the other word that users who use a static Ip Address instead of DHCP.

ip can not use our connections. Just who gets an IP address via DHCP Server mikrotik who can use the internet connection,

I asume that Your DHCP server in mikrotik router are already running well.
We only need to change some the existing settings. 

1. Sign In to Your Mikrotik Via Winbox
2. IP menu> DHCP Server click 2x on the DHCP server. And Check "Add ARP For Lease"
   
3. Go to menu "Interfaces" click 2x on your local interface or an interface where you apply a DHCP Server And Replace option "ARP" to "reply-only '
   

DONE! Now you try to use a static IP on your computer at yourlocal network, connections to the router will not work unless you use the options "Obtain an IP Address Automaticaly" or DHCP on interfaces / ethernet your computer enabled.