VPN site to site and variable address in 1 location / USG20W-VPN

Hi,

To begin with, I would like to point out that I am a beginner when it comes to VPN connections. Thanks to this forum and extensive instructions on zyxel.com, I was able to set up an IPSec VPN connection between the two locations. I am using USG20W-VPN devices. VPN Site to Site configuration.

I have a problem determining remote rules in one location.

Location A

A computer with a fixed IP address

Location B

Laptop with a variable IP address

Location B is home. This is where the problem arises: I do not want to share the entire local network from location B to A. The second problem is I do not want to set a fixed IP address on a laptop that is mobile.

There is a solution: assign a MAC address to an IP address, but that blocks the rest of the home users and their mass of devices, which is constantly changing.

I want to easily connect a computer (with a fixed IP) and a laptop (with a variable IP) via a VPN tunnel via a VPN Site to Site.

The second option is, in case when location B changes (e.g. leaving home) how to configure VPN site to client, keeping the above configuration.