Question on setting up NTP on Cisco Voice Gateway for CUCM 9.1
I do have question on setting up NTP on Cisco Voice Gateway (3825 Series Router).
What we have been trying to do is as follows. CUCM 9.1 will be pointed to Cisco 3825 Router for NTP. And the Cisco 3825 Router will sync with a public IP address (from internet) for NTP.
Inorder to achieve this, the following commands were entered in Cisco 3825 Router
ntp server <ip address for NTP from internet>
And as mentioned above, ntp for CUCM 9.1 will be Cisco 3825 Router.
Now, the issue that I come across is that, whenever the Cisco 3825 Router is in sync with Internet NTP IP address, CUCM 9.1 will be unsynchronised with Cisco 3825 Router (but still accessible in CUCM OS Administration --> Settings --> NTP Server).
And, whenever Cisco 3825 is not in sync with Internet NTP IP address (in sync with local time of Router), CUCM 9.1 will be in sync with Cisco 3825 Router.
I couldn't find CUCM 9.1 in sync with Cisco 3825 Router, when Cisco 3825 Router isin sync with Internet NTP IP address.
Is this behaviour normal, or is this any kind of bug / issue?
We have scheduled to upgrade the IOS of Cisco 3825 Router this weekend, to see if have any changes.
I will keep you posted. At the same time, any suggestions would be appreciated.
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