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IPv6 Stateless Address Autoconfiguration (RFC2462)

IP.com Disclosure Number: IPCOM000003041D
Original Publication Date: 1998-Dec-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 20 page(s) / 57K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. Thomson: AUTHOR [+2]

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.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 5% of the total text.

Network Working Group S. Thomson

Request for Comments: 2462 Bellcore

Obsoletes: 1971 T. Narten

Category: Standards Track IBM

December 1998

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.

Copyright Notice

Copyright (C) The Internet Society (1998). All Rights Reserved.

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........................................ 6

3. DESIGN GOALS............................................. 7

4. PROTOCOL OVERVIEW........................................ 8

4.1. Site Renumbering.................................... 10

5. PROTOCOL SPECIFICATION................................... 10

5.1. Node Configuration Variables........................ 11

5.2. Autoconfiguration-Related Variables................. 11

5.3. Creation of Link-Local Addresses.................... 12

5.4. Duplicate Address Detection......................... 13

5.4.1. Message Validation............................. 14

5.4.2. Sending Neighbor Solicitation Messages......... 14

5.4.3. Receiving Neighbor Solicitation Messages....... 15

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......... 16

5.5.1. Soliciting Router Advertisements............... 16

5.5.2. Absence of Router Advertisements............... 17

5.5.3. Router A...