Service Manual

Defaults NTP authentication is not congured 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-specic. 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
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
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 conguring the ntp authentication-key command, congure 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 dierent 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-cong when you enter the
ntp authentication-
key command. Therefore, if your system boots with a startup-conguration from an Dell Networking OS
versions prior to 8.2.1.0 in which you have congured 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-cong to the startup-cong.
Related Commands
ntp authenticate — enables NTP authentication.
ntp trusted-key — congures 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
1442
System Time and Date