Block all request from wan to lan

Hi there,
I have question about how i can block all incoming traffic from outside or internet to my network on microtik firewall, i mean how can I block all request from wan port to lan?? I want my lan can access to the Internet but any request or attack from wan to lan becomes drop for more security. please help me to make a rule in microtik firewall for that. Thnx

Hey.

Make sure you using default firewall filter rules
Disable services in IP - Services which you ain’t using
Untick in IP - DNS “Allow remote requests”
Add your IP address in System - Users for you login.

Also read this before:

https://wiki.mikrotik.com/wiki/Manual%3ASecuring_Your_Router