D-Link DGS-3630 User Manual 1 - Page 114

DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide Parameter No Serve No Trust Version No Peer No Query No Modify Description Select this option to deny all packets except NTP control queries. Select this option to deny packets that are not cryptographically authenticated. Select this option to deny packets that mismatch the current NTP version. Select this option to deny packets that might mobilize an association unless authenticated. The packets include broadcast, symmetric-active and many cast server packets when a configured association does not exist. Note that this flag does not apply to packets that do not attempt to mobilize an association. Select this option to deny all NTP control queries. Select this option to deny the NTP control queries that attempt to modify the state of the server. Click the Apply button to accept the changes made. 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 Key Settings This window is used to display and configure the NTP key settings. To view the following window, click Management > NTP > NTP Key Settings, as shown below: Figure 4-75 NTP Key Settings Window The fields that can be configured in NTP Control Key are described below: Parameter NTP Control Key Description Enter the NTP control key here. This is used to define the key ID for the NTP control messages. The range is from 1 to 255. Select the None option to disable this feature. Click the Apply button to accept the changes made. 102