Browse Prior Art Database

PPP LCP Extensions (RFC1570)

IP.com Disclosure Number: IPCOM000002404D
Original Publication Date: 1994-Jan-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 16 page(s) / 34K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

W. Simpson: AUTHOR

Abstract

The Point-to-Point Protocol (PPP) [1] provides a standard method for transporting multi-protocol datagrams over point-to-point links. PPP defines an extensible Link Control Protocol (LCP) for establishing, configuring, and testing the data-link connection. This document defines several additional LCP features which have been suggested over the past few years.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 8% of the total text.

Network Working Group W. Simpson, Editor

Request for Comments: 1570 Daydreamer

Updates: 1548 January 1994

Category: Standards Track

PPP LCP Extensions

Status of this Memo

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) [1] provides a standard method for

transporting multi-protocol datagrams over point-to-point links. PPP

defines an extensible Link Control Protocol (LCP) for establishing,

configuring, and testing the data-link connection. This document

defines several additional LCP features which have been suggested

over the past few years.

This document is the product of the Point-to-Point Protocol Working

Group of the Internet Engineering Task Force (IETF). Comments should

be submitted to the ietf-ppp@ucdavis.edu mailing list.

Table of Contents

1. Additional LCP Packets ................................ 1

1.1 Identification .................................. 1

1.2 Time-Remaining .................................. 3

2. Additional LCP Configuration Options .................. 6

2.1 FCS-Alternatives ................................ 6

2.1.1 LCP considerations .............................. 7

2.1.2 Null FCS ........................................ 8

2.2 Self-Describing-Padding ......................... 9

2.3 Callback ........................................ 11

2.4 Compound-Frames ................................. 12

2.4.1 LCP considerations .............................. 14

APPENDICES ................................................... 15

A. Fast Frame Check Sequence (FCS) Implementation ........ 15

A.1 32-bit FCS Computation Method ................... 15

SECURITY CONSIDERATIONS ...................................... 17

REFERENCES ................................................... 17

ACKNOWLEDGEMENTS ............................................. 18

CHAIR'S ADDRESS .............................................. 18

EDITOR'S ADDRESS ............................................. 18

Simpson ...