You can configure the server running Routing and Remote Access to provide NAT for the private network and to accept VPN connections. ...

You can configure the server running Routing and Remote Access to provide NAT for the private network and to accept VPN connections. Computers on the Internet will not be able to determine the IP addresses of computers on the private network. However, VPN clients will be able to connect to computers on the private network as if they were physically attached to the same network.