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IPv6 Node Requirements
RFC 6434

Internet Engineering Task Force (IETF)                     E. Jankiewicz
Request for Comments: 6434                       SRI International, Inc.
Obsoletes: 4294                                              J. Loughney
Category: Informational                                            Nokia
ISSN: 2070-1721                                                T. Narten
                                                         IBM Corporation
                                                           December 2011

                         IPv6 Node Requirements

Abstract

   This document defines requirements for IPv6 nodes.  It is expected
   that IPv6 will be deployed in a wide range of devices and situations.
   Specifying the requirements for IPv6 nodes allows IPv6 to function
   well and interoperate in a large number of situations and
   deployments.

   This document obsoletes RFC 4294.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6434.

Copyright Notice

   Copyright (c) 2011 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must

Jankiewicz, et al.            Informational                     [Page 1]
RFC 6434                 IPv6 Node Requirements            December 2011

   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  Scope of This Document . . . . . . . . . . . . . . . . . .  5
     1.2.  Description of IPv6 Nodes  . . . . . . . . . . . . . . . .  5
   2.  Requirements Language  . . . . . . . . . . . . . . . . . . . .  5
   3.  Abbreviations Used in This Document  . . . . . . . . . . . . .  5
   4.  Sub-IP Layer . . . . . . . . . . . . . . . . . . . . . . . . .  6
   5.  IP Layer . . . . . . . . . . . . . . . . . . . . . . . . . . .  7
     5.1.  Internet Protocol Version 6 - RFC 2460 . . . . . . . . . .  7
     5.2.  Neighbor Discovery for IPv6 - RFC 4861 . . . . . . . . . .  8
     5.3.  Default Router Preferences and More-Specific Routes -
           RFC 4191 . . . . . . . . . . . . . . . . . . . . . . . . .  9
     5.4.  SEcure Neighbor Discovery (SEND) - RFC 3971  . . . . . . .  9
     5.5.  IPv6 Router Advertisement Flags Option - RFC 5175  . . . .  9
     5.6.  Path MTU Discovery and Packet Size . . . . . . . . . . . . 10
       5.6.1.  Path MTU Discovery - RFC 1981  . . . . . . . . . . . . 10
     5.7.  IPv6 Jumbograms - RFC 2675 . . . . . . . . . . . . . . . . 10
     5.8.  ICMP for the Internet Protocol Version 6 (IPv6) - RFC
           4443 . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
     5.9.  Addressing . . . . . . . . . . . . . . . . . . . . . . . . 11
       5.9.1.  IP Version 6 Addressing Architecture - RFC 4291  . . . 11
       5.9.2.  IPv6 Stateless Address Autoconfiguration - RFC 4862  . 11
       5.9.3.  Privacy Extensions for Address Configuration in
               IPv6 - RFC 4941  . . . . . . . . . . . . . . . . . . . 12
       5.9.4.  Default Address Selection for IPv6 - RFC 3484  . . . . 12

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