Users Guide

Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S6100–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 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.
show clock
Display the current clock settings.
Syntax
show clock [detail]
Parameters
detail (OPTIONAL) Enter the keyword detail to view the source information of the clock.
Command Modes
• EXEC
• EXEC Privilege
1612 System Time and Date