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Network Time Protocol Version 4 (NTPv4) Extension Fields (RFC7822)

IP.com Disclosure Number: IPCOM000245700D
Original Publication Date: 2016-Mar-01
Included in the Prior Art Database: 2016-Mar-31
Document File: 16 page(s) / 16K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

T. Mizrahi: AUTHOR [+2]

Abstract

The NTP header format consists of a set of fixed fields that may be followed by some optional fields. Two types of optional fields are defined: Message Authentication Codes (MACs), and extension fields as defined in Section 7.5 of [NTPv4].

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 17% of the total text.

Internet Engineering Task Force (IETF)                        T. Mizrahi Request for Comments: 7822                                       Marvell Updates: 5905                                                   D. Mayer Category: Standards Track                        Network Time Foundation ISSN: 2070-1721                                               March 2016

         Network Time Protocol Version 4 (NTPv4) Extension Fields

Abstract

   The Network Time Protocol version 4 (NTPv4) defines the optional    usage of extension fields.  An extension field, as defined in RFC    5905, is an optional field that resides at the end of the NTP header    and that can be used to add optional capabilities or additional    information that is not conveyed in the standard NTP header.  This    document updates RFC 5905 by clarifying some points regarding NTP    extension fields and their usage with Message Authentication Codes    (MACs).

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 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/rfc7822.

Copyright Notice

   Copyright (c) 2016 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.

Mizrahi & Mayer              Standards Track                    [Page 1]
 RFC 7822                  NTP Extension Fields                March 2016

 Table of Contents

   1. Introduction ....................................................2    2. Conventions Used in This Document ...............................3       2.1. Terminology ................................................3       2.2. Terms and Abbreviations ...............