[ntp:questions] ntpq reports different polling intervall than the sniffed UDP packet

Venu Gopal neo.venu at gmail.com
Thu Mar 20 09:09:16 UTC 2008


How did you sniff ?
Are you using tcpdump/ethereal ?

Venu

Toralf Förster wrote:
> Hello,
> 
> I'm wondering why I get from ntpq this output :
> 
> tfoerste at n22 ~/devel/linux-2.6 $ ntpq -pn
>      remote           refid      st t when poll reach   delay   offset  jit
> ter
> =========================================================================
> *85.25.144.154   143.93.99.252    2 u   84  128  377   29.453   10.241   1.
> 066
> +87.32.12.19     4.176.44.157     2 u   88  128  377   50.685    8.234   1.
> 607
> +81.169.180.26   192.53.103.104   2 u    4  128  377   31.092   -1.381   1.
> 082
> 
> whereas the field "peer polling intervall" of the sniffed network stream sh
> ows a value of 8 (=56 sec)
> for all packets except packet 3 and 4.
> 
> 




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