ntp authenticate

To enable authentication of all time sources, use the ntp authenticate command. Time sources without the NTP authentication keys will not be synchronized.

To disable this capability, use the no form of this command.

ntp authenticate

Syntax Description

ntp

The command to specify NTP configuration.

authenticate

Enables authentication of all time sources.

Defaults

None

Command Modes

Configuration.

Usage Guidelines

Use the ntp authenticate command to enable authentication of all time sources. This command is optional and authentication will work even without this command.

If you want to authenticate in a mixed mode where only some servers require authentication, that is, only some servers need to have keys configured for authentication, then this command should not be executed.

Examples

/admin(config)# ntp ?

authenticate Authenticate time sources

authentication-key Authentication key for trusted time sources

server Specify NTP server to use

trusted-key Key numbers for trusted time sources

/admin(config)#

 

/admin(config)# ntp authenticate

/admin(config)#

Related Commands

Command

Description

ntp

The command to specify NTP configuration.

ntp authentication-key

Configures authentication keys for trusted time sources.

ntp server

Allows synchronization of the software clock by the NTP server for the system.

ntp trusted-key

Specifies key numbers for trusted time sources that needs to be defined as NTP authentication keys.

show ntp

Displays the status information about the NTP associations.