Lesson 5 - SLIP and PPP

   Introduction

SLIP is a relatively simple protocol that enables users to access a UNIX box over IP. In fact, that is where it got part of its name. PPP is an HDLC-based protocol used by higher layer protocols, such as IP and IPX, to provide WAN connectivity between users. PPP is the protocol utilized between most home personal computers (PCs) and the Internet service provider (ISP), and also appears on high-speed WAN backbones. This lesson examines these two protocols.

   Objectives

At the end of this lesson you should be able to:

1.	Describe the use and format of Serial Line Internet Protocol (SLIP)
2.	List and describe the fields of a Point-to Point Protocol (PPP) frame
3.	Describe the operation of PPP

Key Point
SLIP and PPP are used on a dial-up line to connect to a remote host or other type of network node.

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