Re: [chrony-users] issues syncing between chrony and ntp

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On Mon, May 09, 2011 at 11:40:12AM -0600, Bauer, Steven J. wrote:
> Software versions:
> Chrony version 1.25
> Ntp: 4.2.6p3
> 
> silver ~ # ntpq -p
>      remote           refid      st t when poll reach   delay   offset  jitter
> ==============================================================================
> ntp.sdsmt.edu   .INIT.          16 u    -   64    0    0.000    0.000   0.000
> ip-173-201-38-8 198.153.152.52   2 u   18   64    3   66.030    2.070   0.089
> mail.scottishtr 139.78.135.14    2 u   17   64    3   47.528   -7.556   0.129
> name1.glorb.com 128.252.19.1     2 u   13   64    3   33.976   -0.975   0.243
> smtp.envirahost 128.138.188.172  2 u   14   64    3   47.641    1.468   0.119
> 
> 
> Now, the workaround that I found to get it to work was to add a
> version 3 on the server line in the ntp.conf as well as specify the
> ipv4 address of the host running chrony on the host running ntp.

Interesting, I see no problem with chrony-1.25 as NTP server at
stratum 1 and ntp-4.2.6p3 as a client here.

Can you see the replies from chrony in tcpdump output on the server
and the client? My first guess would be a firewall between the two
hosts which is dropping the NTPv3 packets as they don't match the
version in the requests.

-- 
Miroslav Lichvar

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