Configuring NTP Authentication
2061
key. Namely, the
ntp-service authentication enable
command must work
together with the
ntp-service authentication-keyid
command and the
ntp-service reliable authentication-keyid
command. Otherwise, the NTP
authentication function cannot be normally enabled.
■
For the server/client mode or symmetric mode, you need to associate the
specified authentication key on the client (symmetric-active peer if in the
symmetric peer mode) with the corresponding NTP server (symmetric-passive
peer if in the symmetric peer mode). Otherwise, the NTP authentication feature
cannot be normally enabled.
■
For the broadcast server mode or multicast server mode, you need to associate
the specified authentication key on the broadcast server or multicast server
with the corresponding NTP server. Otherwise, the NTP authentication feature
cannot be normally enabled.
■
For the server/client mode, if the NTP authentication feature has not been
enabled for the client, the client can synchronize with the server regardless the
NTP authentication feature has been enabled for the server or not.
■
For all synchronization modes, the server side and the client side must be
consistently configured.
■
If the NTP authentication is enabled on a client, the client can be synchronized
only to a server that can provide a trusted authentication key.
Configuration Procedure
Configuring NTP authentication for a client
Follow these steps to configure NTP authentication for a client:
n
After you enable the NTP authentication feature for the client, make sure that you
configure for the client an authentication key that is the same as on the server and
specify that the authentication is trusted; otherwise, the client cannot be
synchronized to the server.
To do...
Use the command...
Remarks
Enter system view
system-view
-
Enable NTP authentication
ntp-service authentication
enable
Required
Disabled by default
Configure an NTP
authentication key
ntp-service
authentication-keyid
keyid
authentication-mode md5
value
Required
No NTP authentication key by
default
Configure the key as a trusted
key
ntp-service reliable
authentication-keyid
keyid
Required
No authentication key is
configured to be trusted by
default
Associate the specified key
with an NTP server
Server/client mode:
ntp-service unicast-server
{
ip-address
|
server-name
}
authentication-keyid
keyid
Required
You can associate a
non-existing key with an NTP
server. To enable NTP
authentication, you must
configure the key and specify
it as a trusted key after
associating the key with the
NTP server.
Symmetric peers mode:
ntp-service unicast-peer
{
ip-address
|
peer-name
}
authentication-keyid
keyid
Содержание MSR 50 Series
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