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

Hal Murray <> Mon, 02 September 2019 09:37 UTC

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From: Hal Murray <>
In-Reply-To: Message from "Ulrich Windl" <> of "Mon, 02 Sep 2019 08:35:58 +0200." <>
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Date: Mon, 02 Sep 2019 02:37:50 -0700
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Subject: Re: [Ntp] Antw: Re: Antw: Re: Calls for Adoption -- NTP Extension Field drafts -- Four separate drafts
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X-List-Received-Date: Mon, 02 Sep 2019 09:37:57 -0000 said:
> But remember that a "node" is NOT "an IP address". With multi-homed hosts you
> can have interesting synchronization loops... ;-) 

Is there a problem with using an IPv6 address to identify a system?  (if you are multi-homed, just pick one)

You have to skip over fe80::, Link-Scoped Unicast.  Are there other ranges?

There is some way to map IPv4 addresses to IPv6 if you aren't using IPv6.  RFC-1918 addresses won't be globally unique.  They should work if you are on an isolated network.  That doesn't work if you have more than one system going through the same NAT box.

Would it be simpler/cleaner to use an Ethernet host addresses?  (what are they called these days?)  Are there any potential cases where an NTP server wouldn't have one?


These are my opinions.  I hate spam.