Network Time Protocol Version 4 (NTPv4) Extension Fields
Network Time Foundation
Network Time Foundation
Network Time Protocol version 4 (NTPv4) defines the optional usage of extension fields. An extension field, as defined in RFC 5905 [RFC5905] and RFC 5906 [RFC5906], resides after the end of the NTP header and supplies optional capabilities or information that cannot be conveyed in the basic NTP packet. This document updates RFC 5905 [RFC5905] by clarifying some points regarding NTP extension fields and their usage with legacy Message Authentication Codes (MACs), and removes wasteful requirements added by RCF 7822 [RFC7822]. This proposal deprecates RFC 7822 [RFC7822]. RFC EDITOR: PLEASE REMOVE THE FOLLOWING PARAGRAPH BEFORE PUBLISHING: The source code and issues list for this draft can be found in https://github.com/hstenn/ietf-ntp-extension-fields