Private Line Protocol-PPP
Private Line Protocol-PPP PPP protocol, its full name is Point-To-Point Protocol (point-to-point protocol). It is a data link layer protocol that provides transmission and encapsulation of many different types of network layer packets on point-to-point links. It is located in the second layer of the TCP / IP protocol stack and is mainly designed to support all Point-to-point data transmission is performed on duplex, synchronous and asynchronous links. Hongkong Onice Limited , https://www.ousibangvape.com
PPP mainly consists of three types of protocols: link layer control protocol family (LCP), network layer control protocol family (NCP) and PPP extended protocol family. Among them, the link control protocol is mainly used to establish, tear down and monitor PPP data links; the network layer control protocol family is mainly used to negotiate the format and type of data packets transmitted on the data link; the PPP extended protocol family is mainly used To provide further support for PPP functions.
At the same time, PPP also provides a family of authentication protocols (PAP and CHAP) for network security.