Site to Site but block traffic from one side

RouterOS Beginner Basics
1

Hi, I did a PPTP tunnel between to location and I’m able to communicate correctly on both side but now my goal is to block site B to access site A but site A can access site B.
I did some Firewall rule but everytime the traffic trop on both side.

Site A: 192.168.1.0/24
Site B: 10.1.1.0/24

Thank,

2

Would be very helpfull if you show us your firewall rules.

3

For now it’s the default rule from brand new install, what I tried didn’t work.