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DES-7200 Configuration Guide Chapter 3 NTP
Configuration
Each key is identified by a unique key-id globally. The customer can use the
command ntp trusted
-key to set the key corresponding to the key-id as a
global tru key.
To specify a global authentication key, run obal
config
sted
the following commands in the gl
uration mode:
Command Function
ntp authentication-key key-id md5
key-string [enc-type]
Specify a global authentication key.
key-id: in the range of 1 to 4294967295
key-string: Any
enc-type: Two types: 0 and 7
no ntp authentication-key key-id md5
key-strin
Remove a global authentication key.
g [enc-type]
The configur
effective; t
u
ation of global authentication key does not mean the key is
refore, the key must be configured as a global trusted key before
he
sing it.
n
The current NTP versio
keys and on
communication.
Cautio
n can support up to 1024 authentication
ly one key can be set for each server for secure
3
ted key ID
.2.3 Configure the
Global NTP
Trus
The last step is to set a global authentication key as a global trusted key. Only
by this trusted key the
user can send encrypted data and check the validity of
the message.
T usted key, run the global
configuration mode:
o specify a global tr following commands in the
Command Function
ntp trusted-key key-id
Specify a global trusted key ID.
no ntp trusted-key key-id
Remove a global trusted key ID.
The above-mentioned three steps of settings are the first procedure to
t secu
communication betwe
be set for the
implemen rity authentication mechanism. To initiate real encrypted
en the NTP client and the NTP server, a trusted key must
corresponding server.
Caution
When a global authentication key is removed, its all trusted
information are removed.
3-3