Sntp Authentication-Key - Cisco 300 Series Cli Manual

Clock Commands
78-21075-01 Command Line Interface Reference Guide
Default Configuration
Disabled
Command Mode
Global Configuration mode
User Guidelines
The TimeZone taken from the DHCP server has precedence over the static
TimeZone. If the TimeZone does not exist in the DHCP-TimeZone option, the static
configuration will be active.
The Summer Time taken from the DHCP server has precedence over static
SummerTime. If the Summer Time does not exist in the DHCP-TimeZone option,
the static configuration will be active.
The TimeZone and SummerTime remain effective after the IP address lease time
has expired.
The TimeZone and SummerTime that are taken from the DHCP server are cleared
after reboot.
When the user disables taking the TimeZone and Summer Time from the DHCP
server, the dynamic Time Zone and Summer Time from the DHCP server are
cleared.
In case of multiple DHCP-enabled interfaces, the last accepted DHCP-Time Zone
option overrides any previous DHCP-Time Zone option. This means that the last
accepted DHCP-Time Zone option overrides the previous Time Zone and the
Summer Time, even if it includes only one of them.
Disabling the DHCP client from where the DHCP-TimeZone option was taken,
clears the dynamic Time Zone and Summer Time configuration.
Example
switchxxxxxx(config)# clock dhcp timezone
7.6

sntp authentication-key

The sntp authentication-key Global Configuration mode command defines an
authentication key for Simple Network Time Protocol (SNTP). Use the no form of
this command to remove the authentication key for SNTP.
7
139