how to block connection between subnets

RouterOS Beginner Basics
1

Hi guys, cam someone help me? I have RB951-2Hnd, and created to subnets one per cable users (192.168.5.0/24) andone per wireless users (192.168.6.0./24). I need to block connection between them. I try to create firewall rule, but maybe do not have needed experience.
I set:

chain: try three types (input, forward, output)
src address: 192.168.5.0/24
dst address:192.168.6.0/24

That doesn’t work. Maybe I am entirely wrong directions. Plese help me

2

This is mine configuration, how i split two subnets. Change IP-s with yours. :wink:

Go to IP>Firewall>Filter Rules and add two filters, following images bellow. :slight_smile: