Is anyone else having issues with IPv6 connectivity to
ntp2.ntp.net.nz <http://ntp2.ntp.net.nz> via ipv6? ntp3 seems to be
"IPv4 and IPv6 cannot be configured on the same port and so we have
used two ports where one would do on any normal kit."
I assume that means that some servers are listening on a different UDP
port for NTP packets for IPv6. But the page does not say which port.
Or I've misinterpreted what they mean by "port".