Firewall rule does not work?

I configured simple firewall rule to block internet access from one of my computers. The computer has static ip This is how it configured in Luci:

However, this computer still can access internet.

Anything wrong? Openwrt-22.03.4

Source zone.
Your client device/computer is not the "device(output)" = router itself.
Source zone should likely be Lan or empty.


Thank you, it works when I choose source zone LAN. It does not work when I choose any zone. Why is it?

Because is in LAN. But I have tested this rule with any zone, it works here. Perhaps it's possible you have a conflicting Allow rule configured above it.