Browse Prior Art Database

Neighbor Discovery for IP Version 6 (IPv6) (RFC1970)

IP.com Disclosure Number: IPCOM000004257D
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2000-Sep-13

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

T. Narten: AUTHOR [+2]

Abstract

This document specifies the Neighbor Discovery protocol for IP Version 6. IPv6 nodes on the same link use Neighbor Discovery to discover each other's presence, to determine each other's link-layer addresses, to find routers and to maintain reachability information about the paths to active neighbors.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 1% of the total text.

Network Working Group T. Narten

Request for Comments: 1970 IBM

Category: Standards Track E. Nordmark

Sun Microsystems

W. Simpson

Daydreamer

August 1996

Neighbor Discovery for IP Version 6 (IPv6)

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 Neighbor Discovery protocol for IP

Version 6. IPv6 nodes on the same link use Neighbor Discovery to

discover each other's presence, to determine each other's link-layer

addresses, to find routers and to maintain reachability information

about the paths to active neighbors.

Table of Contents

1. INTRODUCTION............................................. 3

2. TERMINOLOGY.............................................. 4

2.1. General............................................. 4

2.2. Link Types.......................................... 7

2.3. Addresses........................................... 8

2.4. Requirements........................................ 9

3. PROTOCOL OVERVIEW........................................ 10

3.1. Comparison with IPv4................................ 14

3.2. Supported Link Types................................ 16

4. MESSAGE FORMATS.......................................... 17

4.1. Router Solicitation Message Format.................. 17

4.2. Router Advertisement Message Format................. 18

4.3. Neighbor Solicitation Message Format................ 21

4.4. Neighbor Advertisement Message Format............... 23

4.5. Redirect Message Format............................. 25

4.6. Option Formats...................................... 27

4.6.1. Source/Target Link-layer Address............... 28

4.6.2. Prefix Information............................. 29

4.6.3. Redirected Header.............................. 31

4.6.4. MTU............................................ 31

5. CONCEPTUAL MODEL OF ...