Chapter 3
| Basic Management Tasks
Setting the System Clock
Configuring
Time Servers
You can enable NTP authentication to ensure that reliable updates are received
from only authorized NTP servers. The authentication keys and their associated
key number must be centrally managed and manually distributed to NTP
servers and clients. The key numbers and key values must match on both the
server and client.
◆
Polling Interval – Shows the interval between sending requests for a time
update from NTP servers. (Fixed: 1024 seconds)
Web Interface
To set the clock maintenance type to NTP:
1.
Click System, then Time.
2.
Select Configure General from the Step list.
3.
Select NTP from the Maintain Type list.
4.
Enable authentication if required.
5.
Click Apply
Figure 15: Configuring NTP
Use the System > Time (Configure Time Server) pages to specify the IP address for
NTP/SNTP time servers, or to set the authentication key for NTP time servers.
Specifying SNTP Time Servers
Use the System > Time (Configure Time Server – Configure SNTP Server) page to
specify the IP address for up to three SNTP time servers.
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