Vpn software doesn't work on vm

[hxxxrz]

I have a Vpn software, which provides me multi-threading vpn. It creates a process for each vpn ip and
associate each vpn ip with 127.0.0.1:900x.
Then I can use 127.0.0.1:9001, 127.0.0.1:9002 127.0.0.1:9003 and so on for my purposes.
Point is that it doesn't work on virtual machine (there is no internet connection when i use 127.0.0.1:900x as vpn ip). But on desktop it works perfect.

I have such network settings and I changed nothing besides it:

The guest is windows7x64, the host is debian9x64.

 

[LnxBil]

I have a Vpn software, which provides me multi-threading vpn. It creates a process for each vpn ip and
associate each vpn ip with 127.0.0.1:900x.

Do you mean port forwarding? What you describe cannot be done with VPN, because the IP (here localhost???) is always the same.