[Ntp] Secdir last call review of draft-ietf-ntp-port-randomization-06

Sean Turner via Datatracker <noreply@ietf.org> Sun, 21 March 2021 15:31 UTC

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From: Sean Turner via Datatracker <noreply@ietf.org>
To: secdir@ietf.org
Cc: draft-ietf-ntp-port-randomization.all@ietf.org, last-call@ietf.org, ntp@ietf.org
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Reply-To: Sean Turner <sean@sn3rd.com>
Date: Sun, 21 Mar 2021 08:31:40 -0700
Archived-At: <https://mailarchive.ietf.org/arch/msg/ntp/qUoDtuG-5evUQJ5fKUmQBfHTXYc>
Subject: [Ntp] Secdir last call review of draft-ietf-ntp-port-randomization-06

Reviewer: Sean Turner
Review result: Ready

Hi! I am doing this review as part of the Security Directorate.

This I-D updates NTP v4 [RFC 5095] to recommend the use of transport-protocol
ephemeral port randomization for those modes where use of the NTP well-known
port is not required. The port randomization recommendation is based on BCP 156
[RFC6056], which recommends the randomization of transport-protocol ephemeral
ports. This I-D is in fact co-authored by one of the co-authors of BCP 156. The
I-D motivates the recommendation and enumerates some considerations as they
relate to NTP as well as identifies the exact changes (i.e., two-sentence
dstport replaced with more text). It also appears that this I-D is well
implemented as noted in the implementation status section.

[Ntp] Secdir last call review of draft-ietf-ntp-p… Sean Turner via Datatracker
Re: [Ntp] Secdir last call review of draft-ietf-n… Fernando Gont