IgNiTeD SoUL

Virtual private networking (VPN) provides a way of making a secured, private connection from the client to the server over a public network such as the Internet. Unlike dial-up networking, in which a connection is made directly between client and server, a VPN connection is logical and tunneled through another type of connection. Typically, a remote user would connect to an Internet service provider (ISP) using a form of dial-up networking (particularly good for users with high-speed connections).

The Routing And Remote Access server would also be connected to the Internet (probably via a persistent, or permanent, connection) and would be configured to accept VPN connections. Once the client is connected to the Internet, it then establishes a VPN connection over that dial-up connection to the Routing and Remote Access server.