Allied Telesis AT-S100 - Manual (Page 146)

Chapter 4: Configuration Terminal Mode Commands
146 Section I: Command Modes
NTP AUTHENTICATION-KEY
Syntax
ntp authentication-key KEYNUMBER <1-4294967295>
md5 KEY
no ntp authentication-key KEYNUMBER <1-4294967295>
Parameters
KEYNUMBER Specifies a key number. Choose a value between 1 and
4,294,967,295. This key indicates a trusted time source.
MD5 Indicates MD5 (message digest algorithm 5)
authentication.
KEY Specifies the name of an authentication key.
Description
Use the NTP AUTHENTICATION-KEY command to define an
authentication key for a trusted time source. If you set this command, the
AT-S100 software only synchronizes to a system that carries one of the
authentication keys specified. By default, this command is disabled.
To remove an authentication key, use the no form of this command.
For procedures to configure NTP, see “Setting the Network Time” on
page 29.
Command Mode
Configuration Terminal mode
Example
The following commands specify an authentication key of “888” and a key
name of “topsecretkey:”
switch#configure terminal
switch(config)#ntp authentication-key 888 md5
topscretkey