interface-explanation

https://community.ui.com/questions/Clarification-on-the-use-if-in-out-local-and-where-it-is-implemented-/029e02ad-6608-4a3a-a7db-5911a7a0df4a

In firewall rules are processed for packets entering a given interface.

Out firewall rules are processed for packets exiting a given interface.

Local firewall rules are processed for packets destined for the router itself from a given interface.