PPP - Point to Point Protocol (1)
PPP originated as an encapsulation protocol for transporting IP traffic over point-to-point links
supports IP, DECnet, IPX, AppleTalk, Mac layer bridging;
operates over dialup or leased lines;
allows to assign IP address automatically (dynamically);
PPP established asynchronous (start-stop) and synchronous (bit-oriented) encapsulation, link quality testing, error detection, link configuration
PPP components
- Link Control Protocol - establish, configure, and test data-link connection
- Network Control Protocols - establish and configure different network-layer protocols
- High-Level data Link Control (HDLC) - a method for encapsulating datagrams over point-to-point links