[c-nsp] Use NTP server for syncing but do not respond to NTP requests

Tom Storey tom at snnap.net
Sat Mar 22 10:30:49 EDT 2014


Control plane policy perhaps? Block inbound NTP packets that arent
from desired sources (i.e. your upstream clocks.)

On 22 March 2014 14:04, Drew Weaver <drew.weaver at thenap.com> wrote:
> Hello all,
>
> Can anyone tell me how to configure IOS to use an NTP server for syncing the clock but don't respond to NTP requests from random clients?
>
> So far I have tried ntp server (ip address), ntp peer (ip address) they all seem to turn the device in question into an NTP server (which I don't want).
>
> Thanks,
> -Drew
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