NTP support allows you to configure the Sensor as an NTP client that synchronizes time from a public NTP server instead of updating time only with the Manager server.
If NTP is configured and Manager connectivity is established, the Sensor receives time from both the NTP server and the Manager. If there is loss of connectivity with either the Manager or NTP server, then the other takes over as the time source.
The Manager should be synced with an NTP server, prior to starting NTP on the Sensor. Not doing this will break the communication between the Sensors and the Manager.
If the Manager is not using the time received from the NTP server, there might be issues related to time difference while switching from NTP server to the Manager and vice versa.
To specify your NTP server, do the following:
Steps:
Select → → → → → .
The NTP Support page appears.
Configure NTP servers.jpg "GUID-F891288C-F3C5-4CD8-AA11-1B0A7AF0BA41-low.jpg")
Note
The NTP can also be configured for each device as well.
Deselect Inherit Settings? to override the configuration in the parent domain.
To enable communication with the NTP server, select Enable NTP Server?
To stop NTP from the Manager, unselect this option.
To configure the NTP Server click
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, NTP Server-<number> section is displayed.Type the IP Address. This can be an IPv4 or IPv6 address.
Enter the Polling Interval. The range is 3 ~ 17. The configured polling interval is applied as 2^x seconds (2 power x).
Select Authentication to enable authenticating the NTP servers.
Enter the Authentication Key ID.
Select the required key from Authentication Key Type drop-down. This key can be MD5, SHA, or SHA1.
Note
The parameters in steps d and e are provided by the NTP service provider.
Click on the Test Connection button to check the connectivity to the NTP server. An Informational dialog box displays the status of connectivity test.
NTP: Test Connection notification.jpg "GUID-A99BD867-7ABC-4EEC-B48B-DC82650B34C2-low.jpg")
Important
Although you are configuring NTP settings for the Sensor, the Test Connection function uses the Manager IP address as the source IP address.
Click Save to save your settings. An Informational dialog box displays the status of configuration.
NTP: Save notification.jpg "GUID-1F192A33-1EE0-4226-A2E0-30679F21061F-low.jpg")
Note
The Manager allows you to configure a maximum of two NTP servers with the same IP address format (i.e., IPv4 or IPv6). If you configure both NTP servers, NTP Server-1 takes a higher priority.
The IPv4 and IPv6 addresses are mutually exclusive. For any configuration, either the IPv4 or IPv6 address will be used. For the IPv6 address to work, the Sensor management port should be assigned an IPv6 address.
To remove any NTP server, select the checkbox beside NTP Server-<number> and click
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.