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Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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ntp authentication-key

Specify a key for authenticating the NTP server.

Syntax ntp authentication-key number md5 [0 | 7] key
Parameters
number Specify a number for the authentication key. The range is from 1 to 4294967295.

This number must be the same as the number parameter configured in the ntp trusted-key command.

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
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information

After configuring the ntp authentication-key command, configure the ntp trusted-key command to complete NTP authentication.

The Dell Networking OS versions 8.2.1.0 and later use an encryption algorithm to store the authentication key that is different from previous versions; beginning in version 8.2.1.0, the system 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 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.

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