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An Acceptable Use Policy for New ICMP Types and Codes (RFC7279) Disclosure Number: IPCOM000237095D
Original Publication Date: 2014-May-01
Included in the Prior Art Database: 2014-May-31
Document File: 20 page(s) / 18K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Shore: AUTHOR [+1]


There has been some recent concern expressed about a lack of clarity around when new message types and codes should be added to ICMP (including ICMPv4 [RFC0792] and ICMPv6 [RFC4443]). We lay out a policy regarding when (and when not) to move functionality into ICMP.

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Internet Engineering Task Force (IETF)                          M. Shore Request for Comments: 7279                          No Mountain Software BCP: 189                                                    C. Pignataro Category: Best Current Practice                      Cisco Systems, Inc. ISSN: 2070-1721                                                 May 2014

          An Acceptable Use Policy for New ICMP Types and Codes


   In this document we provide a basic description of ICMP's role in the    IP stack and some guidelines for future use.

   This document is motivated by concerns about lack of clarity    concerning when to add new Internet Control Message Protocol (ICMP)    types and/or codes.  These concerns have highlighted a need to    describe policies for when adding new features to ICMP is desirable    and when it is not.

Status of This Memo

   This memo documents an Internet Best Current Practice.

   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    BCPs is available in 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

Copyright Notice

   Copyright (c) 2014 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    ( 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.

Shore & Pignataro         Best Current Practice                 [Page 1]
 RFC 7279                        ICMP AUP                        May 2014

 Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2

   2.  Acceptable Use Policy . . . . . . . . . . . . . . . . . . . .   2

     2.1.  Classification of Existing Message Types  . . . . . . . .   3

       2.1.1.  ICMP Use as a Routing Protocol  . . . . . . . . . . .   6

       2.1.2.  A Few Notes on RPL  . . . . . . . ...