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Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI
RFC 4330

Approval announcement
Draft of message to be sent after approval:


From: The IESG <>
To: RFC Editor <>
Cc: The IESG <>, <>,
Subject: Re: Informational RFC to be: draft-mills-sntp-v4-01.txt 

The IESG has no problem with the publication of 'Simple Network Time 
Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI' 
<draft-mills-sntp-v4-01.txt> as an Informational RFC. 

The IESG would also like the IRSG or RFC-Editor to review the comments in 
the datatracker 
related to this document and determine whether or not they merit 
incorporation into the document. Comments may exist in both the ballot 
and the comment log. 

The IESG contact person is Thomas Narten.

A URL of this Internet-Draft is:

The process for such documents is described at

Thank you,

The IESG Secretary

Ballot Text

Technical Summary
   This document describes the Simple Network Time Protocol (SNTP)
   Version 4, which is a subset of the Network Time Protocol (NTP)
   used to synchronize computer clocks in the Internet. SNTP can be
   used when the ultimate performance of the full NTP implementation
   described in RFC-1305 is not needed or justified.  SNTP Version 4
   clarifies certain design features of NTP which allow operation in a
   simple, stateless remote-procedure call (RPC) mode with accuracy
   and reliability expectations similar to the UDP/TIME protocol
   described in RFC-868.

   The only significant protocol change in SNTP Version 4 is a
   modified header interpretation to accommodate Internet Protocol
   Version 6 (IPv6) (RFC-1883) and OSI (RFC-1629) addressing.
   However, SNTP Version 4 includes an anycast mode and a public-key
   based authentication scheme designed specifically for broadcast and
   anycast applications. The authentication scheme extension is
   described in another RFC. Until a definitive specification is
   published, these extensions should be considered provisional. In
   addition, this memo introduces the kiss-o'-death message, which can
   be used by servers to suppress client requests as circumstances

Working Group Summary
   An IETF WG for NTP is about to be chartered, as a follow-up to a
   BOF that was held at the November, 2004 IETF. At the BOF, it was
   decided that this document should be pubished as is (as an
   Informational RFC), and that the document would be used as a basis
   for developing a standards track version of NTP in a WG (in the
   process of being formed).
Protocol Quality
   This document has been reviewed for the IESG by Thomas Narten, and
   there are multiple implementations.


  This RFC is not a candidate for any level of Internet Standard.  The
  IETF disclaims any knowledge of the fitness of this RFC for any
  purpose and in particular notes that the decision to publish is not
  based on IETF review for such things as security, congestion
  control, or inappropriate interaction with deployed protocols.  The
  RFC Editor has chosen to publish this document at its discretion.
  Readers of this document should exercise caution in evaluating its
  value for implementation and deployment.  See RFC 3932 for more

  The reader should be aware that the IETF has formed an NTP Working
  Group to develop a Standards Track version of NTP version 4. This
  document will serve as input to that effort.

RFC Editor Note