9.Use the NTP Version
10.If necessary, select the No Authentication checkbox to allow communications with the NTP resource without any form of security. This option should only be used with known NTP resources.
11.Select the AutoKey Authentication checkbox to use an Auto key protocol based on the public key infrastructure (PKI) algorithm. The SNTP server uses a fast algorithm and a private value to regenerate key information on the arrival of a message. The switch sends its designated public key to the server for credential verification and the two exchange messages. This option is disabled when the Broadcast Server checkbox is selected.
12.Select the Symmetric Key Authentication checkbox to use a single (symmetric) key for encryption and decryption. Since both the sender and the receiver must know the same key, it is also referred to as shared key cryptography. The key can only be known by the sender and receiver to maintain secure transmissions.
13.Enter an Key ID between
14.Select the Preferred Source checkbox if this NTP resource is a preferred NTP resource. Preferred sources are contacted before
15.Refer to the Status field. The Status is the current state of the requests made from the applet. Requests are any “SET/GET” operation from the applet. The Status field displays error messages if something goes wrong in the transaction between the applet and the switch.
16.Click OK to save and add the changes to the running configuration and close the dialog.
17.Click Cancel to close the dialog without committing updates to the running configuration.
5.3.5 Viewing SNTP Associations
The interaction between the switch and a SNTP server constitutes an association. SNTP associations can be either a peer association (the switch synchronizes to the another system or allows another system to synchronize to it), or a server association (only the switch synchronizes to the SNTP resource, not the other way around).
To review the switch’s current SNTP associations:
1. Select Services > Secure NTP from the main menu tree.
