PPP = Point to Point Protocol.

A method of connecting a computer to the Internet with a regular telephone line and a high-speed modem.

PPP has a number of advantages over the older SLIP protocol: it is more stable, provides error checking feature; it is designed to operate both over asynchronous connections and bit-oriented synchronous systems, it can configure connections to a remote network dynamically, and test that the link is usable. PPP can be configured to encapsulate different network layer protocols (such as IP, IPX, or AppleTalk) by using the appropriate Network Control Protocol (NCP).