Re: [Ntp] Mirja Kühlewind's Discuss on draft-ietf-ntp-using-nts-for-ntp-24: (with DISCUSS and COMMENT)

Hal Murray <hmurray@megapathdsl.net> Fri, 20 March 2020 04:47 UTC

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To: Harlan Stenn <stenn@nwtime.org>
cc: Mirja Kühlewind <ietf@kuehlewind.net>, The IESG <iesg@ietf.org>, ntp-chairs@ietf.org, ntp@ietf.org, draft-ietf-ntp-using-nts-for-ntp@ietf.org, odonoghue@isoc.org, hmurray@megapathdsl.net
From: Hal Murray <hmurray@megapathdsl.net>
In-Reply-To: Message from Harlan Stenn <stenn@nwtime.org> of "Thu, 19 Mar 2020 06:23:09 PDT." <9d88d4cc-b891-0c59-0263-86ce3b0b9f4c@nwtime.org>
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Date: Thu, 19 Mar 2020 21:47:43 -0700
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Subject: Re: [Ntp] Mirja Kühlewind's Discuss on draft-ietf-ntp-using-nts-for-ntp-24: (with DISCUSS and COMMENT)
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stenn@nwtime.org said:
> The NTP Project has sent its plans for TCP/123 to the working group, to be
> used by "NTP TCP Services".  We intend this to be used for a variety of
> NTP-related TCP services.  That is a work in progress.  Otherwise, the NTP
> Project remains strongly opposed to using TCP/123 for NTS-KE because of <good
> reasons we have stated before to the WG, and I want to save everybody the
> drama so I won't go in to them now>. 

Your "good reasons" would carry more weight in my view if you would provide a 
reference to your ideas.

Google found 2 drafts from 2018.  The total useful content was 2 paragraphs 
with few details.  Maybe I didn't search for the right thing.  The first said 
TCP and STARTTLS.  The second said key exchange.  In my opinion, both have 
been superseded by NTS-KE.

Are there other ideas I didn't find?

I think it would be a good idea to move ntpq operations to a secure channel.  
NTS-KE uses ALPN.  Is there any reason not to take advantage of ALPN so we can 
share port 123 with future ideas?




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