lan to wan

I want to prevent Router 2 from pinging all my devices. I want only internet access there. (Router 1 My network) (Router 2 Isolated/Guest Network) I tried to apply some Firewall Rules like mentioned here in Post #7: Click here but if I apply them on the Main Router (Router 1) my Internet...

just as the title I tried researching, since command in voxel firmware are quite similar with openwrt. The results are they have this file thing located in /etc/config/network. U can modify this file (according to what I read) and convert whatever port u have into wan or u can also deactivate...