Reference Guide

System Time and Date | 1483
Command
History
ntp authenticate
c e s
Enable authentication of NTP traffic between the switch and the NTP time serving
hosts.
Syntax ntp authenticate
To disable NTP authentication, enter no ntp authentication.
Defaults
Not enabled.
Command Modes
CONFIGURATION
Command
History
Usage
Information
You also must configure an authentication key for NTP traffic using the ntp
authentication-key command.
Related
Commands
ntp authentication-key
c e s
Specify a key for authenticating the NTP server.
Syntax
ntp authentication-key number md5
[0 | 7] key
Parameters
Version 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
pre-Version 6.1.1.0 Introduced for E-Series
Version 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
pre-Version 6.1.1.0 Introduced for E-Series
ntp authentication-key Configure authentication key for NTP traffic.
ntp trusted-key Configure a key to authenticate
number
Specify a number for the authentication key.
Range: 1 to 4294967295.
This number must be the same as the number parameter configured in the ntp
trusted-key command.
md5
Specify that the authentication key will be encrypted using MD5 encryption
algorithm.