Choose a VPN or Dial-up Connection
Applies To: Windows Server 2008, Windows Server 2008 R2
For a virtual private network connection between sites across the Internet, the VPN server at each end of the connection typically has a permanent connection to the Internet. A non-permanent connection to the Internet is possible if the Internet service provider (ISP) supports demand-dial connections; the connection is created when traffic is delivered to the VPN server. However, this is not a common configuration.
You can configure a server running RRAS to provide dial-up networking access to an entire network or restrict access to the shared resources of the remote access server only. For dial-up networking access, the server must have at least one modem or a multiport adapter, and analog telephone lines or other WAN connections. If the server provides access to a network, you must install and connect a separate network adapter to the network to which the server provides access.