Configuring Symmetric Key - Motorola WS5100 Series Reference Manual

Listen to NTP
Broadcasts
Broadcast Delay
Auto Key
5. Click Apply to save changes to the screen. Navigating away from the screen without clicking the Apply
button results in all the changes to the screen being discarded.
6. Click the Revert

5.3.2 Configuring Symmetric Key

Symmetric keys are algorithms for cryptography that use trivially related cryptographic keys for both
decryption and encryption. The encryption key is related to the decryption key, as they may be identical or
there is a simple mechanism to go between keys. The keys represent a shared secret between the switch
and its time resource.
To review existing Symmetric Key configurations, and (if necessary) add a new one:
1. Select Services
2. Select the Symmetric Keys
Select this checkbox to allow the switch to listed over the network for SNTP
broadcast traffic. Once enabled, the switch and the SNTP broadcast server must
be on the same network.
Enter the estimated round-trip delay (between 1 and 999999 seconds) for SNTP
broadcasts between the SNTP broadcast server and the switch. Define the
interval based on the priority of receiving accurate system time frequently.
Typically, no more than one packet per minute is necessary to synchronize the
switch to within a millisecond of the SNTP broadcast server.
Auto Key
Use use an drop-down menu to specify whether the
a key is disabled, enabled only on the host or enabled only on the client.
button to undo the changes to the screen and revert to the last saved configuration.
> Secure NTP from the main menu tree.
tab.
5-25
Switch Services