86 Configuring System InformationDeleting the Authentication Key1 Open the SNTP Authentication page.2 Click Show All.The Authentication Key Table opens.3 Select an Authentication Key Table entry.4 Select the Remove check box.5 Click Apply Changes.The entry is removed, and the device is updated.Defining SNTP Authentication Settings Using CLI CommandsThe following table summarizes the equivalent CLI commands for setting fields displayed in the SNTPAuthentication page.The following is an example of the CLI commands:Defining SNTP ServersThe SNTP Servers page contains information for enabling SNTP servers, as well as adding new SNTPservers. In addition, the SNTP Servers page enables the device to request and accept SNTP traffic from aserver. To open the SNTP Servers page, click System → SNTP → SNTP Servers in the tree view.Table 6-7. SNTP Authentication CLI CommandsCLI Command Descriptionsntp authenticate Defines authentication for received NetworkTime Protocol traffic from servers.sntp authentication-keynumber md5 valueDefines an authentication key for SNTP.console> enableconsole# configureConsole(config)# sntp authentication-key 8 md5 ClkKeyConsole(config)# sntp trusted-key 8Console(config)# sntp authenticate