How to adjust Firewall Rules for Packets to Multicast Addresses

Security Firewall Rules
7

I’m having trouble with this too, I need to drop multicast from one host. I can’t for the life of me get this going.

Tried:
Source Host: 192.168.10.7
Destination network: 224.0.0.251
Action: Drop
No drops shown in logs.

Tried this:
Source network: Any
Destination network: 224.0.0.251
Action: Drop
Drops all multicast and shown in logs. Works but not what I’m after.