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IPv6 Stateless Address Autoconfiguration (RFC1971)

IP.com Disclosure Number: IPCOM000004258D
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2019-Feb-14
Document File: 23 page(s) / 33K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. Thomson: AUTHOR [+1]

Related Documents

10.17487/RFC1971: DOI

Abstract

This document specifies the steps a host takes in deciding how to autoconfigure its interfaces in IP version 6. [STANDARDS-TRACK]

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 6% of the total text.

Network Working Group S. Thomson Request for Comments: 1971 Bellcore Category: Standards Track T. Narten IBM August 1996

IPv6 Stateless Address Autoconfiguration

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

This document specifies the steps a host takes in deciding how to autoconfigure its interfaces in IP version 6. The autoconfiguration process includes creating a link-local address and verifying its uniqueness on a link, determining what information should be autoconfigured (addresses, other information, or both), and in the case of addresses, whether they should be obtained through the stateless mechanism, the stateful mechanism, or both. This document defines the process for generating a link-local address, the process for generating site-local and global addresses via stateless address autoconfiguration, and the Duplicate Address Detection procedure. The details of autoconfiguration using the stateful protocol are specified elsewhere.

Table of Contents

1. INTRODUCTION............................................. 2 2. TERMINOLOGY.............................................. 4 2.1. Requirements........................................ 7 3. DESIGN GOALS............................................. 8 4. PROTOCOL OVERVIEW........................................ 9 4.1. Site Renumbering.................................... 11 5. PROTOCOL SPECIFICATION................................... 11 5.1. Node Configuration Variables........................ 12 5.2. Autoconfiguration-Related Variables................. 12 5.3. Creation of Link-Local Addresses.................... 13 5.4. Duplicate Address Detection......................... 13 5.4.1. Message Validation............................. 15 5.4.2. Sending Neighbor Solicitation Messages......... 15 5.4.3. Receiving Neighbor Solicitation Messages....... 15

Thomson & Narten Standards Track [Page 1]

RFC 1971 IPv6 Stateless Address Autoconfiguration August 1996

5.4.4. Receiving Neighbor Advertisement Messages...... 16 5.4.5. When Duplicate Address Detection Fails......... 16 5.5. Creation of Global and Site-Local Addresses......... 17 5.5.1. Soliciting Router Advertisements............... 17 5.5.2. Absence of Router Advertisements............... 17 5.5.3. Router Advertisement Processing................ 17 5.5.4. Address Lifetime Expiry........................ 19 5.6. Configuration Consistency........................... 19 SECURITY CONSIDERATIONS...................................... 19 REFERENCES................................................... 20 AUTHORS’ ADDRESSES........................................... 21 APPENDIX: LOOPBACK SUPPRESSION & DUPLICATE ADDRESS DETECTION. 22

1. INTRODUCTIO...

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