RFC 2780 (rfc2780) - Page 1 of 10

IANA Allocation Guidelines For Values In the Internet Protocol and Related Headers

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Network Working Group                                         S. Bradner
Request for Comments: 2780                            Harvard University
BCP: 37                                                        V. Paxson
Category: Best Current Practice                                    ACIRI
                                                              March 2000


                IANA Allocation Guidelines For Values In
               the Internet Protocol and Related Headers

Status of this Memo

   This document specifies an Internet Best Current Practices for the
   Internet Community, and requests discussion and suggestions for
   improvements.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   This memo provides guidance for the IANA to use in assigning
   parameters for fields in the IPv4, IPv6, ICMP, UDP and TCP protocol
   headers.

1. Introduction

   For many years the Internet Assigned Numbers Authority (IANA)
   (www.iana.org) has allocated parameter values for fields in protocols
   which have been created or are maintained by the Internet Engineering
   Task Force (IETF).  Starting a few years ago the IETF began to
   provide the IANA with guidance for the assignment of parameters for
   fields in newly developed protocols.  Unfortunately this type of
   guidance was not consistently provided for the fields in protocols
   developed before 1998.  This memo attempts to codify existing IANA
   practice used in the assignment of parameters in the specific case of
   some of these protocols.  It is expected that additional memos will
   be developed in the future to codify existing practice in other
   cases.

   This memo addresses the fields within the IPv4, IPv6, ICMP, UDP and
   TCP protocol headers for which the IANA assigns values.

   The terms "Specification Required", "Expert Review", "IESG Approval",
   "IETF Consensus", and "Standards Action", are used in this memo to
   refer to the processes described in [CONS].




Bradner & Paxson         Best Current Practice
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