Users Guide

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, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
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.
System Time and Date 1987