D-Link DGS-3630 SERIES - NTP Access Group Settings

DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide
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Figure 4-71 NTP Peer Settings Window
The fields that can be configured are described below:
Parameter Description
IP Address
Select and enter the IPv4 address of the NTP peer here.
IPv6 Address
Select and enter the IPv6 address of the NTP peer here.
Version
Enter the NTP version number here. The range is from 1 to 4.
Key ID
Enter the authentication key ID here. The range is from 1 to 255.
Min Poll
Enter the minimum poll value here. This specifies the minimum poll interval for
NTP messages. This value is calculated as 2 to the power of the minimum poll
interval value specified. For example, if the value specified here is 6, the minimum
poll interval that will be used is 64 seconds (2
6
=64). The range is from 3 to 16.
Max Poll
Enter the maximum poll value here. This specifies the maximum poll interval for
NTP messages. This value is calculated as 2 to the power of the maximum poll
interval value specified. For example, if the value specified here is 6, the
maximum poll interval that will be used is 64 seconds (2
6
=64). The range is from 4
to 17.
Prefer
Select whether or not this entry will be the preferred peer for synchronization.
Options to choose from are True and False.
Click the Apply button to accept the changes made.
Click the Edit button to re-configure the specific entry.
Click the Delete button to delete the specified entry.
Enter a page number and click the Go button to navigate to a specific page when multiple pages exist.
NTP Access Group Settings
This window is used to display and configure the NTP access group settings. The NTP implements a general purpose
Access Control List (ACL) containing address/match entries sorted first by increasing address values and then by
increasing mask values. A match occurs when the bitwise AND of the mask and the packet source address is equal to
the bitwise AND of the mask and address in the list. The list is searched in order with the last match found defining the
restriction flags associated with the entry.
To view the following window, click Management > NTP > NTP Access Group Settings, as shown below: