Extending the Network by Modem (PPP)
The Point-to-Point Protocol (PPP) provides a way to transmit IP packets over a modem-to-modem connection. A PPP connection between two remote UNIX hosts provides a way for all remote users and applications to access one another over a single modem link rather than restricting communication to individual users at any one time.
In such a way, it is possible to use PPP to extend a network so that remote hosts can interoperate as if they were located on the same local LAN. However, it should be noted that the speed of communication between two systems connected over a dialup line will be slower than if they were connected by a LAN.
Configuring a Simple PPP Connection
Three distinct parts are involved in configuring ...