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Configuring and Installing Dial-Up Networking in a Given Situation
Remote Access Service (RAS) and Dial-Up Networking (DUN) enable you to extend your network to unlimited locations. RAS servers and DUN clients enable remote clients to make connections to your LAN via either ordinary telephone lines or through higher-speed techniques, such as ISDN or X.25. The incoming connections can also be via industry standard Point-to-Point Protocol (PPP) or the newer Point-to-Point Tunneling Protocol (PPTP) that makes use of the Internet. DUN also supports the use of Serial Line Internet Protocol (SLIP) to initiate dial-up connections with SLIP servers.


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The Point-to-Point Tunneling Protocol (PPTP) is an extension to PPP that enables clients to connect to remote servers over the Internet.

After clients establish a connection to a RAS server, they are registered into the local network and can take advantage of the same network services and data that they could if they were actually physically connected to the local network. The only difference that clients could notice is that WAN connections are much slower than a direct physical connection to their LAN.

Further Information