[Ntp] Fwd: I-D Action: draft-ietf-ntp-port-randomization-03.txt

Fernando Gont <fgont@si6networks.com> Fri, 29 May 2020 09:16 UTC

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Subject: [Ntp] Fwd: I-D Action: draft-ietf-ntp-port-randomization-03.txt
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We authors believe this version should be ready for WGLC.


-------- Forwarded Message --------
Subject: [Ntp] I-D Action: draft-ietf-ntp-port-randomization-03.txt
Date: Fri, 29 May 2020 00:13:38 -0700
From: internet-drafts@ietf.org
Reply-To: ntp@ietf.org
To: i-d-announce@ietf.org
CC: ntp@ietf.org

A New Internet-Draft is available from the on-line Internet-Drafts 
This draft is a work item of the Network Time Protocol WG of the IETF.

         Title           : Port Randomization in the Network Time 
Protocol Version 4
         Authors         : Fernando Gont
                           Guillermo Gont
                           Miroslav Lichvar
	Filename        : draft-ietf-ntp-port-randomization-03.txt
	Pages           : 10
	Date            : 2020-05-28

    The Network Time Protocol can operate in several modes.  Some of
    these modes are based on the receipt of unsolicited packets, and
    therefore require the use of a service/well-known port as the local
    port number.  However, in the case of NTP modes where the use of a
    service/well-known port is not required, employing such well-known/
    service port unnecessarily increases the ability of attackers to
    perform blind/off-path attacks.  This document formally updates
    RFC5905, recommending the use of port randomization for those modes
    where use of the NTP service port is not required.

The IETF datatracker status page for this draft is:

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