Hi Bob, It appears that you are right. Observe that “us.pool.ntp.org” just gives IPv4 addresses — the same 4 addresses in random order. I presume that the particular set of 4 addresses will be a slowly varying function of time: wait an hour and you’ll get a different group of 4. though I haven’t done that experiment.
But “2.us.pool.ntp.org” gives 4 IPv4 addresses and 4 IPv6 addresses. I assume it’s a deliberate choice, but I have no idea what the reasoning behind it might be… > almini:~ rbthomas$ host us.pool.ntp.org > us.pool.ntp.org has address 154.16.245.246 > us.pool.ntp.org has address 209.133.217.165 > us.pool.ntp.org has address 50.112.150.45 > us.pool.ntp.org has address 71.248.190.29 > almini:~ rbthomas$ host us.pool.ntp.org > us.pool.ntp.org has address 71.248.190.29 > us.pool.ntp.org has address 50.112.150.45 > us.pool.ntp.org has address 209.133.217.165 > us.pool.ntp.org has address 154.16.245.246 > almini:~ rbthomas$ host 2.us.pool.ntp.org > 2.us.pool.ntp.org has address 104.131.53.252 > 2.us.pool.ntp.org has address 204.2.134.162 > 2.us.pool.ntp.org has address 142.4.196.99 > 2.us.pool.ntp.org has address 66.135.44.92 > 2.us.pool.ntp.org has IPv6 address 2600:3c00::f03c:91ff:fe91:5dd8 > 2.us.pool.ntp.org has IPv6 address 2604:a880:800:10::1:9001 > 2.us.pool.ntp.org has IPv6 address 2001:470:0:2c8::2 > 2.us.pool.ntp.org has IPv6 address 2607:fcd0:100:c21::1f2a:e81b > almini:~ rbthomas$ > Enjoy! Rick On Jun 22, 2017, at 7:33 AM, Bob McDonald <bmcdonal...@gmail.com> wrote: > It seems as though when I use a config similar to the following I get no > IPv6 servers in my pool selections. > > pool us.pool.ntp.org iburst > pool north-america.pool.ntp.org iburst > pool pool.ntp.org iburst > > only when I add a number prefix (as below) to the entries do I get IPv6 > servers in my candidate list. > > pool 2.us.pool.ntp.org iburst > pool 2.north-america.pool.ntp.org iburst > pool 2.pool.ntp.org iburst > > Do I just not understand what *should* be configured? > > Regards, > > Bob > _______________________________________________ > questions mailing list > questions@lists.ntp.org > http://lists.ntp.org/listinfo/questions _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions