Hi, According to [1], historic means "...no longer recommended for use". NTPv3 is a protocol that is still widely used, including in new devices and operating systems. I would suggest leaving the status of NTPv3 as-is and revisiting it in a few years. Cheers, Tal. [1] IESG Statement on Designating RFCs as Historic, https://datatracker.ietf.org/doc/statement-iesg-iesg-statement-on-designating-rfcs-as-historic-20140720/ On Wed, Dec 18, 2024 at 10:03 PM Erik Kline <ek.ietf@xxxxxxxxx> wrote: > > Note that "historic" does not mean "unused on the Internet". > > See also RFC 2026 S4.2.4 and the IESG 20140720 statement on the topic. > > On Wed, Dec 18, 2024 at 2:43 AM Windl, Ulrich <u.windl@xxxxxx> wrote: >> >> Hi! >> >> I also tried to find out what NTP version Windows Domain Controllers use. Here it had been suggested to use them as primary servers for all (UNIX/Linux) clients (like "There won't be any more problems if all the world runs Windows"), but I could not even find out whether those support symmetric key authentication. So probably: NTPv3 isn't dead. >> >> Kind regards, >> Ulrich Windl >> >> > -----Original Message----- >> > From: Hal Murray <halmurray@xxxxxxxxx> >> > Sent: Wednesday, December 18, 2024 10:44 AM >> > To: Tal Mizrahi <tal.mizrahi.phd@xxxxxxxxx> >> > Cc: last-call@xxxxxxxx; NTP WG <ntp@xxxxxxxx>; Hal Murray >> > <halmurray@xxxxxxxxx> >> > Subject: [EXT] [Ntp] Re: Last Call: Status Change of NTPv2 and NTPv3 to >> > Historic >> > >> > >> > > It would be interesting to know to what extent NTPv3 is used these days. >> > >> > >From a pool server, Dec 3-4, 2024 >> > >> > Quick answer, less than 20% >> > >> > Looks better in a fixed pitch font. My mail system will probably wrap >> > long lines. >> > >> > 48 byte packets. Total is 600154088: >> > NTPv0 NTPv1 NTPv2 NTPv3 NTPv4 NTPv5 NTPv6 NTPv7 total >> > 784 1401K 1 5 17 2 5 6 1402099 unspec >> > 7 49658 4 183450 7645 3 5 2 240774 >> > symm-act >> > 4 2 4 1 69 4 16 4 104 >> > symm-pass >> > 2 2625K 220483 100M 494M 3 13 2 598332715 Client >> > 5 24 6 63582 111181 5 6 5 174814 Server >> > 3 21 3 3324 3 3 6 2 3365 Bcast >> > 2 7 5 2 5 6 2 6 35 Mode6 >> > 6 2 7 148 4 5 5 5 182 Mode7 >> > 813 4076K 220513 101M 494M 31 58 32 total >> > >> > 48 byte packets, % of 600154088: >> > NTPv0 NTPv1 NTPv2 NTPv3 NTPv4 NTPv5 NTPv6 NTPv7 total >> > 0.000 0.233 0.000 0.000 0.000 0.000 0.000 0.000 0.234 unspec >> > 0.000 0.008 0.000 0.031 0.001 0.000 0.000 0.000 0.040 symm-act >> > 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 symm-pass >> > 0.000 0.437 0.037 16.795 82.427 0.000 0.000 0.000 99.697 Client >> > 0.000 0.000 0.000 0.011 0.019 0.000 0.000 0.000 0.029 Server >> > 0.000 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.001 Bcast >> > 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Mode6 >> > 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Mode7 >> > 0.000 0.679 0.037 16.837 82.447 0.000 0.000 0.000 total >> > >> > >> > -- >> > These are my opinions. I hate spam. >> > >> > >> > >> > _______________________________________________ >> > ntp mailing list -- ntp@xxxxxxxx >> > To unsubscribe send an email to ntp-leave@xxxxxxxx >> _______________________________________________ >> ntp mailing list -- ntp@xxxxxxxx >> To unsubscribe send an email to ntp-leave@xxxxxxxx -- last-call mailing list -- last-call@xxxxxxxx To unsubscribe send an email to last-call-leave@xxxxxxxx