Re: [Ntp] Antw: Re: Calls for Adoption -- NTP Extension Field drafts -- Four separate drafts

Hal Murray <hmurray@megapathdsl.net> Tue, 03 September 2019 08:13 UTC

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To: Heiko Gerstung <heiko.gerstung@meinberg.de>
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From: Hal Murray <hmurray@megapathdsl.net>
In-Reply-To: Message from Heiko Gerstung <heiko.gerstung@meinberg.de> of "Tue, 03 Sep 2019 09:59:03 +0200." <F9ECE897-2A6D-4336-86B6-88F87FC4BA89@meinberg.de>
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Date: Tue, 03 Sep 2019 01:13:35 -0700
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Subject: Re: [Ntp] Antw: Re: Calls for Adoption -- NTP Extension Field drafts -- Four separate drafts
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heiko.gerstung@meinberg.de said:
>     I'm saying that if a v3 system gets a v4 (or greater) packet, the v3
>     system should respond with a v3 packet. 

It can't.  There are fields in a NTP v3 reply that are copied from the request 
packet.  The v3 only system doesn't know how to find them in a v4 packet.

(For v3 and v4, they may be in the same place, but that may not be true for 
v5.)


-- 
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