Block all outward ports except 443

[wouam31200]

Hello everyone,
I'm brand new to OpenWRT, sorry if my question may seem silly.
I would like to block all ports except 443 to the outside.
What's the easiest way to do this?
I thank you in advance.

[pavelgl]

I assume you want to restrict the LAN clients, not the router itself.

@wouam31200

What's the easiest way to do this?

Remove the lan=>wan forwarding

and create a traffic rule like this:

[wouam31200]

Thank you so much!