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
Version 8.3.11.1
Introduced on the Z9000.
Version 8.2.1.0
Added options [
0
|
7
] for entering the authentication key.
Version 7.6.1.0
Introduced on the S-Series.
Version 7.5.1.0
Introduced on the C-Series.
pre-Version
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.
FTOS versions 8.2.1.0 and later use an encryption algorithm to store the authentication key that
is different from previous FTOS versions; beginning in version 8.2.1.0, FTOS 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 FTOS 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.
ntp broadcast client
Set up the interface to receive NTP broadcasts from an NTP server.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
ntp broadcast client
To disable broadcast, use the
no ntp broadcast client
command.
Defaults
Disabled.
Command Modes
INTERFACE
Command History
Version 8.3.11.1
Introduced on the Z9000.
1434
Summary of Contents for Force10 Z9000
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