How to distribute the Internet and external ip through vpn?

Question

Network administration

There are 2 networks, each internet->router->pc, but BUT 1 network has a white ip.
How to raise a server, let's say a web-server, in the second network (without a white ip) via vpn, what would be the ip of the first network? That is, how to forward ports.
Yes, another question about the router, zyxel keentic ultra, how to forward ports there? Very incomprehensible menu.

Answer 1

Oh my God. You have thoughts. Well. Generally. need it. And be able to express. And to understand. And yes, you still need to understand what is written.
So, in order to publish any service through NAT, you need to create one (and in advanced configurations) two rules in the corresponding menu, specifying the port outside - i.e. the one to which the client is connecting, and the address and port inside the network perimeter - i.e. the one to which this traffic will eventually be directed. Where exactly the target server is located is absolutely not important, the main thing is that it is reachable for the router from which the traffic is redirected.
In the case of a VPN and a specific router model, you just need to test the possibility of directing traffic to the tunnel. Those. create a rule where the destination is a computer in the tunnel.
If you have another router behind the tunnel and the target server is available only behind it, then you need to create another NAT by analogy with the first one.