Dell Command Line Reference Guide for the S4048–ON System 9.14.2.5

PDF

ntp authentication-key

Specify a key for authenticating the NTP server.

Syntax
ntp authentication-key key-number {md5 | sha1} {0 | 7} key
Parameters
key-number
Specify a number for the authentication key. The range is from 1 to 65534.

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.
sha1
Specify that the authentication key is encrypted using SHA1 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, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.14(1.0)
Introduced the sha1 option. Also, introduced on the S4810 and S4820T.
9.14(0.0)
The trusted-key range value is from 1 to 65534.
9.12(1.0)
Introduced on the S5048F–ON.
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100–ON.
9.8(2.0)
Introduced on the S3100 series.
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 EMC Networking OS versions 8.2.1.0 and later use an encryption algorithm to store the authentication key that is different from previous Dell EMC Networking OS versions; beginning in version 8.2.1.0, Dell EMC 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 EMC 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

Rate this content

Accurate
Useful
Easy to understand
Was this article helpful?
0/3000 characters
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please select whether the article was helpful or not.
  Comments cannot contain these special characters: <>()\