My servers (both in the US) saw a big (~100%) jump in IP6 traffic around 12:00 
UTC

http://imgur.com/a/A7xUQ <http://imgur.com/a/A7xUQ>


> On May 21, 2017, at 9:30 AM, Tim Lightfoot <[email protected]> wrote:
> 
> 
> I am seeing a similar issue - our two UK servers (ntp0.sotaconnect.net and 
> ntp1.sotaconnect.net) have also dropped off the pool due to being reported as 
> unreachable on IPv6, yet remain active in IPv4.
> 
> I can ping ntplax7.ntppool.net (the monitoring station) on IPv4, but on IPv6 
> the tracert doesn't reach seem to be able to reach the destination network 
> (AS7012)
> 
> Thanks
> Tim
> 
> 
> 
> 
> 
> -----Original Message-----
> From: pool [mailto:[email protected]] On 
> Behalf Of Erwan David
> Sent: 21 May 2017 14:41
> To: [email protected]
> Subject: [Pool] IPv6 problem ?
> 
> Hi,
> 
> My ntp server (ntp.rail.eu.org) seems to be unreachable in IPv6 from the 
> monitoring host. However it is reachable and working in IPv4 and I can reach 
> it from home in IPv6, so there seems to be an IPv6 problem between monitoring 
> and my host.
> 
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