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An IPv6 Aggregatable Global Unicast Address Format (RFC2374)

IP.com Disclosure Number: IPCOM000002946D
Original Publication Date: 1998-Jul-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 9 page(s) / 23K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Hinden: AUTHOR [+3]

Abstract

This document defines an IPv6 aggregatable global unicast address format for use in the Internet. The address format defined in this document is consistent with the IPv6 Protocol [IPV6] and the "IPv6 Addressing Architecture" [ARCH]. It is designed to facilitate scalable Internet routing.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 12% of the total text.

Network Working Group R. Hinden

Request for Comments: 2374 Nokia

Obsoletes: 2073 M. O'Dell

Category: Standards Track UUNET

S. Deering

Cisco

July 1998

An IPv6 Aggregatable Global Unicast Address Format

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.

1.0 Introduction

This document defines an IPv6 aggregatable global unicast address

format for use in the Internet. The address format defined in this

document is consistent with the IPv6 Protocol [IPV6] and the "IPv6

Addressing Architecture" [ARCH]. It is designed to facilitate

scalable Internet routing.

This documented replaces RFC 2073, "An IPv6 Provider-Based Unicast

Address Format". RFC 2073 will become historic. The Aggregatable

Global Unicast Address Format is an improvement over RFC 2073 in a

number of areas. The major changes include removal of the registry

bits because they are not needed for route aggregation, support of

EUI-64 based interface identifiers, support of provider and exchange

based aggregation, separation of public and site topology, and new

aggregation based terminology.

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",

"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this

document are to be interpreted as described in [RFC 2119].

2.0 Overview of the IPv6 Address

IPv6 addresses are 128-bit identifiers for interfaces and sets of

interfaces. There are three types of addresses: Unicast, Anycast,

and Multicast. This document defines a specific type of Unicast

address.

In this document, fields in addresses are given specific names, for

example "subnet". When this name is used with the term "ID" (for

"identifier") after the name (e.g., "subnet ID"), it refers to the

contents of the named field. When it is used with the term "prefix"

(e.g. "subnet prefix") it refers to all of the addressing bits to

the left of and includi...