In my house I've got this kind of setup:
A main router (gateway
192.168.1.1) which is connected through SIM 4g to Internet (Router is
A secondary router (gateway
192.168.8.1) which is connected through Ethernet to main Router, and which is also connected to my VPS OpenVPN server. (Router here is a
I want that everything connected via WIFI to the secondary router will be accessible through my VPN outside my house.
I tried to run on my Mac a web server with running on port 3000, and "port forwarding" in both routers this port, but without success.