[ntp:questions] ntpd not responding to IPv6 queries?
mayer at ntp.org
Tue Jun 9 11:45:15 UTC 2009
David J Taylor wrote:
> I have ntpd 4.2.4p6 running on a Windows 7 RC machine.
>>From the command prompt, when I enter: ping <pc-name>, ping works
> correctly, but seems to be using an IPv6 address. I guess this must be an
> auto-assigned address, as I have no IPv6 network as such. If I enter:
> ntpq -c rv <pc-name>, I get the error message:
> ntpq: read: no such file or directory
> This PC is primarily an IPv4 pc, and if I enter the command with the IPv4
> numeric address: ntpq -c rv 184.108.40.206, it works as expected. If I add an
> entry to etc/hosts 220.127.116.11 pc-name, the ntpq -c rv <ip-name> works
> I can't reproduce the problem on a Windows Vista PC running ntp 4.2.5p181.
> So, with PCs having both IPv4 and IPv6 running, is there a difference
> between ntp 4.2.4 and 4.2.5 which would explain such behaviour?
4.2.4 does not have IPv6 support on Windows while 4.2.5p181 does. Dave
Hart did report a problem with using ntpq over IPv6 on Windows but it
has not been debugged yet. I should check that on Unix as well.
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