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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.
System Time and Date
1791