I'm trying to find the best (most secure) configuration for the firewall in OpenWRT.
I'm using LuCi to configure all the stuff. I have successfully created a VPN (OpenVPN). It is supposed the best way is create 3 zones (wan, lan and vpn) in the firewall and then configure it.
My problem is if I create 3 zones, I cannot establish a tunnel in OpenVPN from internet to my router running OpenWRT. Only works when I set 1 zone including the 3: wan, lan and vpn (see attached image).
Are you using a OpenVPN? how are you configuring the firewall for the VPN?