[Ntp] Re: Grease in Roughtime

[Marcus Dansarie <[e-mail]>]

Thanks! Would adding "Servers SHOULD ignore any unknown version numbers 
in the list supplied by the client. If the list contains no version 
numbers supported by the server, it MAY respond with another version or 
ignore the request entirely, see Section 6.2.2." to Section 6.1.1. (in 
draft 11) be a suitable fix for this?

Kind regards,
Marcus

On 2024-09-26 08:22, David Venhoek wrote:
> Hi Marcus,
> 
> Apologies for taking some time on this. My concern here is that
> suppose we go to a version 2 of roughtime in the future, clients may
> for a while send out requests that are both valid as version 1 and
> version 2 requests, accepting either response. If the server balks at
> seeing version number 2 (because it doesn't exist according to it) and
> thus would not, or not respond correctly to such packets, this would
> make version negotiation really painfull. So servers in my view should
> ignore version numbers they don't recognize in the VER tag, as long as
> there is at least one they do know about.
> 
> I hope that clarifies.
> 
> Kind regards,
> David Venhoek