Router as NTP Server

Unanswered Question
Jun 11th, 2012
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Has anybody experience running a Cisco Router as a NTP Server? I want to use it for network devices, server and clients.


E.g. Setup:


Public NTP -> Router (ASxxxxx) (NTP Server #1) -> DMZ Router (NTP Server #2) -> Internal Router (NTP Server #3) -> Server, Client, Network devices, etc-

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Leo Laohoo Mon, 06/11/2012 - 14:42
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That's possible.


THe Internal Router points to the DMZ router as an NTP source.


The DMZ router points to the BGP Router as an NTP source.


The BGP Router synchronizes to either a dedicated GPS-based NTP appliance or a public-facing NTP source.


NOTE:  Try to avoid the temptation of using the command "NTP master".

Marvin Rhoads Mon, 06/11/2012 - 15:34
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I second Leo's reply that it's possible.


However I'd just point them all to a public NTP server or, at most, to your BGP router which in turn syncs to a public Stratum 1 server. No need to add tiers unnecessarily.

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