Command Line Reference Guide

Time and Network Time Protocol (NTP) | 1453
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
command ntp authentication-key. 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 broadcast client
c e s
Set up the interface to receive NTP broadcasts from an NTP server.
Syntax
ntp broadcast client
To disable broadcast, enter no ntp broadcast client.
Defaults
Disabled
Command Modes
INTERFACE
Command
History
ntp disable
c e s
Prevent an interface from receiving NTP packets.
Syntax
ntp disable
To re-enable NTP on an interface, enter no ntp disable.
Default
Disabled (that is, if an NTP host is configured, all interfaces receive NTP packets)
Command Modes
INTERFACE
Command
History
ntp authenticate Enables NTP authentication.
ntp trusted-key Configure a trusted key.
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 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