Internet Protocol, Version 6 (IPv6) Specification
RFC 8200

Document Type RFC - Internet Standard (July 2017; Errata)
Obsoletes RFC 2460
Also known as STD 86
Last updated 2017-10-30
Replaces draft-hinden-6man-rfc2460bis
Stream IETF
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Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Ole Troan
Shepherd write-up Show (last changed 2016-11-30)
IESG IESG state RFC 8200 (Internet Standard)
Consensus Boilerplate Yes
Telechat date
Responsible AD Suresh Krishnan
Send notices to "Ole Troan" <otroan@employees.org>
IANA IANA review state Version Changed - Review Needed
IANA action state RFC-Ed-Ack
Internet Engineering Task Force (IETF)                        S. Deering
Request for Comments: 8200                                       Retired
STD: 86                                                        R. Hinden
Obsoletes: 2460                                     Check Point Software
Category: Standards Track                                      July 2017
ISSN: 2070-1721

           Internet Protocol, Version 6 (IPv6) Specification

Abstract

   This document specifies version 6 of the Internet Protocol (IPv6).
   It obsoletes RFC 2460.

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on
   Internet Standards is available in Section 2 of RFC 7841.

   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/rfc8200.

Deering & Hinden             Standards Track                    [Page 1]
RFC 8200                   IPv6 Specification                  July 2017

Copyright Notice

   Copyright (c) 2017 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
   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.

Deering & Hinden             Standards Track                    [Page 2]
RFC 8200                   IPv6 Specification                  July 2017

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  IPv6 Header Format  . . . . . . . . . . . . . . . . . . . . .   6
   4.  IPv6 Extension Headers  . . . . . . . . . . . . . . . . . . .   7
     4.1.  Extension Header Order  . . . . . . . . . . . . . . . . .  10
     4.2.  Options . . . . . . . . . . . . . . . . . . . . . . . . .  11
     4.3.  Hop-by-Hop Options Header . . . . . . . . . . . . . . . .  13
     4.4.  Routing Header  . . . . . . . . . . . . . . . . . . . . .  14
     4.5.  Fragment Header . . . . . . . . . . . . . . . . . . . . .  15
     4.6.  Destination Options Header  . . . . . . . . . . . . . . .  23
     4.7.  No Next Header  . . . . . . . . . . . . . . . . . . . . .  24
     4.8.  Defining New Extension Headers and Options  . . . . . . .  24
   5.  Packet Size Issues  . . . . . . . . . . . . . . . . . . . . .  25
   6.  Flow Labels . . . . . . . . . . . . . . . . . . . . . . . . .  26
   7.  Traffic Classes . . . . . . . . . . . . . . . . . . . . . . .  26
   8.  Upper-Layer Protocol Issues . . . . . . . . . . . . . . . . .  27
     8.1.  Upper-Layer Checksums . . . . . . . . . . . . . . . . . .  27
     8.2.  Maximum Packet Lifetime . . . . . . . . . . . . . . . . .  28
     8.3.  Maximum Upper-Layer Payload Size  . . . . . . . . . . . .  29
     8.4.  Responding to Packets Carrying Routing Headers  . . . . .  29
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  29
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  30
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  32
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  32
     11.2.  Informative References . . . . . . . . . . . . . . . . .  33
   Appendix A.  Formatting Guidelines for Options  . . . . . . . . .  36
   Appendix B.  Changes Since RFC 2460 . . . . . . . . . . . . . . .  39
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