RFC - 1661

The Point-to-Point Protocol (PPP)

Original:	ftp://ftp.isi.edu/in-notes/rfc1661.txt
Authors:	W. Simpson [Daydreamer]
Date:	July 1994
Category:	Standard: STD-51 ]

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Obsoletes:
RFC-1548	The Point-to-Point Protocol (PPP) (Obsoleted by RFC-1661std51) (Updated by RFC-1570prop)

Updated by:
RFC-2153	PPP Vendor Extensions

Referred by:	142 RFC
Refers to:	4 RFC

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Status

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited

Abstract

The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. PPP is comprised of three main components:

1. A method for encapsulating multi-protocol datagrams.
2. A Link Control Protocol (LCP) for establishing, configuring, and testing the data-link connection.
3. A family of Network Control Protocols (NCPs) for establishing and configuring different network-layer protocols.

This document defines the PPP organization and methodology, and the PPP encapsulation, together with an extensible option negotiation mechanism which is able to negotiate a rich assortment of configuration parameters and provides additional management functions. The PPP Link Control Protocol (LCP) is described in terms of this mechanism.

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