The protocol residing in the PPP data unit is identified by LCP at the time of negotiation. LCP negotiates with the gateway for link configuration, quality of service, network layer configuration, and link termination. Once the connection has been established by LCP, the PPP transmission can begin. PPP uses another protocol, the Link Control Protocol (LCP), to establish a connection between either end. The core protocols of TCP/IP operate at layers three and four of the OSI model, corresponding to the. ( of 2) The TCP/IP protocol suite was generally designed to provide implementation of the networking stack from the network layer (layer three) and above. PPP uses a frame format such as High-level Data Link Control (HDLC), with an information field containing the IP header. Serial Line Internet Protocol (SLIP) SLIP and PPP Overview and Role In TCP/IP. Point-to-Point Protocol (PPP) is a newer version of SLIP that provides faster, more efficient communications. The termination point for SLIP connections is usually a gateway computer.

When it is received on the other end, the SLIP data unit is deleted, and the IP data unit can then be sent over a conventional TCP/IP network. The PointtoPoint Protocol is used to encapsulate Internet Protocol packets in IPv4 packets for transfer over serial lines or other protocol connections. Addressing is not used during this part of the connection because a serial line is a point-to-point dial-up communications link. SLIP encapsulates the IP information or information from layers above IP and transmits it over a serial line. If you are using a modem and need to send IP packets over a dial-up line, the transmission will not work because you must connect to another modem, and, of course, modems do not understand IP.

It is a protocol that supports TCP/IP over serial communications lines where routers and gateways are not used. Serial Line Interface Protocol (SLIP) is used for dial-up connections.

Tcp ip over serial ppp