How to set up routes?

Question

VPN

Need help setting up routes. In general, there is a VPS with SOFTETHR. The VPS has an IP address of 100.100.100.100. There is a router that connects via L2TP to the VPS.
VPN addresses 10.10.0.0/24. Behind the router, the network is 192.168.0.0/24. When accessing the VPS at 100.100.100.100
, one or another port in the 192.168.0.0/24 network was opened according to NAT rules, as it happens when you access the router's WAN. Moreover, the traffic itself from the network 192.168.0.0/24 needs to be driven not through the VPN but through the WAN, that is, the Internet is available through the WAN and it must accept connections from the VPN

Answer 1

And how do you imagine this?
Do you have a client, let the browser break on tcp / 80 100.100.100.100, and the answer arrives from the address that is attached to the WAN of the router?
It will not work, but it is possible to configure such behavior, yes.