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Cisco 3825 as a NTP server?

 

 

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jurwiller at americanbb

Aug 3, 2012, 12:23 PM

Post #1 of 2 (213 views)
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Cisco 3825 as a NTP server?

I have a few 3825's sitting around, and wondering if I can use them as
NTP servers for my network. I know I can do it with relative accuracy;
but is there anything I can do to hook up a GPS receiver on a serial
interface or something?? Thanks in advance.



James Urwiller

Lead Internet Services Technician / Network Engineer

CCNA 11567125

American Broadband

402-426-6257 - Office

402-278-1875 - Cell

402-426-6273 - Fax

jurwiller [at] americanbb <mailto:mjurwiller [at] americanbb>



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andy at dar

Aug 3, 2012, 2:37 PM

Post #2 of 2 (192 views)
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Re: Cisco 3825 as a NTP server? [In reply to]

On Fri, Aug 3, 2012 at 2:23 PM, James Urwiller <jurwiller [at] americanbb>wrote:

> I have a few 3825's sitting around, and wondering if I can use them as
> NTP servers for my network. I know I can do it with relative accuracy;
> but is there anything I can do to hook up a GPS receiver on a serial
> interface or something?? Thanks in advance.


Have a look at the variations of the IOS "ntp refclock" command. Trimble
makes a box that can hook up to the aux port, and there are probably other
options as well.

-Andy
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