Administrator Guide

md5 Specify that the authentication key is encrypted using MD5 encryption algorithm.
0 Specify that authentication key is entered in an unencrypted format (default).
7 Specify that the authentication key is entered in DES encrypted format.
key Enter the authentication key in the previously specified format.
Defaults NTP authentication is not configured by default. If you do not specify the option [0 | 7], 0 is selected by
default.
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.11.1 Introduced on the Z9000.
8.2.1.0 Added options [0 | 7] for entering the authentication key.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.1.1.0 Introduced on the E-Series.
Usage
Information
After configuring the ntp authentication-key command, configure the ntp trusted-key
command to complete NTP authentication.
Dell Networking OS versions 8.2.1.0 and later use an encryption algorithm to store the authentication
key that is different from previous Dell Networking OS versions; beginning in version 8.2.1.0, Dell
Networking OS uses DES encryption to store the key in the startup-config when you enter the ntp
authentication-key command. Therefore, if your system boots with a startup-configuration from an
Dell Networking OS versions prior to 8.2.1.0 in which you have configured ntp authentication-key,
the system cannot correctly decrypt the key, and cannot authenticate NTP packets. In this case you must
re-enter this command and save the running-config to the startup-config.
Related
Commands
ntp authenticate — enables NTP authentication.
ntp trusted-key — configures a trusted key.
ntp broadcast client
Set up the interface to receive NTP broadcasts from an NTP server.
Syntax
ntp broadcast client
To disable broadcast, use the no ntp broadcast client command.
Defaults Disabled.
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.7(0.0) Introduced on the S6000-ON.
System Time and Date 1249