Browse Prior Art Database

PPP Authentication Protocols (RFC1334)

IP.com Disclosure Number: IPCOM000002157D
Original Publication Date: 1992-Oct-01
Included in the Prior Art Database: 2019-Feb-11
Document File: 16 page(s) / 20K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Lloyd: AUTHOR [+1]

Related Documents

10.17487/RFC1334: DOI

Abstract

This document defines two protocols for Authentication: the Password Authentication Protocol and the Challenge-Handshake Authentication Protocol. [STANDARDS-TRACK]

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 11% of the total text.

Network Working Group B. Lloyd Request for Comments: 1334 L&A W. Simpson Daydreamer October 1992

PPP Authentication Protocols

Status of this Memo

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

Abstract

The Point-to-Point Protocol (PPP) [1] provides a standard method of encapsulating Network Layer protocol information over point-to-point links. PPP also defines an extensible Link Control Protocol, which allows negotiation of an Authentication Protocol for authenticating its peer before allowing Network Layer protocols to transmit over the link.

This document defines two protocols for Authentication: the Password Authentication Protocol and the Challenge-Handshake Authentication Protocol. This memo is the product of the Point-to-Point Protocol Working Group of the Internet Engineering Task Force (IETF). Comments on this memo should be submitted to the ietf-ppp@ucdavis.edu mailing list.

Table of Contents

1. Introduction ............................................... 2 1.1 Specification Requirements ................................. 2 1.2 Terminology ................................................ 3 2. Password Authentication Protocol ............................ 3 2.1 Configuration Option Format ................................ 4 2.2 Packet Format .............................................. 5 2.2.1 Authenticate-Request ..................................... 5 2.2.2 Authenticate-Ack and Authenticate-Nak .................... 7 3. Challenge-Handshake Authentication Protocol.................. 8 3.1 Configuration Option Format ................................ 9 3.2 Packet Format .............................................. 10 3.2.1 Challenge and Response ................................... 11 3.2.2 Success and Failure ...................................... 13

Lloyd & Simpson [Page 1]

RFC 1334 PPP Authentication October 1992

SECURITY CONSIDERATIONS ........................................ 14 REFERENCES ..................................................... 15 ACKNOWLEDGEMENTS ............................................... 16 CHAIR’S ADDRESS ................................................ 16 AUTHOR’S ADDRESS ............................................... 16

1. Introduction

PPP has three main components:

1. A method for encapsulating datagrams over serial links.

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.

In order to establish communications over a point-to-point link, each end of the PPP link must first send LCP packets to configure the data link during Link Establishment phase. After the link has been establishe...

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