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Control Messages Protocol for Use with Network Time Protocol Version 4

Document Type Replaced Internet-Draft (candidate for ntp WG)
Expired & archived
Authors Professor David L. Mills , Brian Haberman
Last updated 2017-03-27 (Latest revision 2016-10-17)
Replaced by RFC 9327
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state Call For Adoption By WG Issued
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-ntp-mode-6-cmds
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document describes the structure of the control messages used with the Network Time Protocol. These control messages can be used to monitor and control the Network Time Protocol application running on any IP network attached computer. The information in this document was originally described in Appendix B of RFC 1305. The goal of this document is to provide a historic description of the control messages.


Professor David L. Mills
Brian Haberman

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)