R3721-F3210-F3171-HP High-End Firewalls System Management and Maintenance Configuration Guide-6PW101

108
Ste
p
Command Remarks
5. Associate the specified key
with an NTP server.
• Client/server mode:
ntp-service unicast-server
{ ip-address | server-name }
authentication-keyid keyid
• Symmetric peers mode:
ntp-service unicast-peer
{ ip-address | peer-name }
authentication-keyid keyid
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.
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 key is trusted.
Otherwise, the client cannot be synchronized to the server.
Configuring NTP authentication for a server
To configure NTP authentication for a server:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enable NTP
authentication.
ntp-service authentication enable
By default, NTP authentication is disabled.
3. Configure an NTP
authentication key.
ntp-service authentication-keyid
keyid authentication-mode md5
value
By default, no NTP authentication key is
configured.
Configure the same authentication key on
the client and server.
4. Configure the key as
a trusted key.
ntp-service reliable
authentication-keyid keyid
By default, the authentication key is not
configured as a trusted key.
5. Enter interface view.
interface interface-type
interface-number
N/A
6. Associate the
specified key with an
NTP server.
• Broadcast server mode:
ntp-service broadcast-server
authentication-keyid keyid
• Multicast server mode:
ntp-service multicast-server
authentication-keyid keyid
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.
Displaying and maintaining NTP
Task Command Remarks
Display information about NTP service
status.
display ntp-service status [ | { begin | exclude
| include } regular-expression ]
Available in any
view
Display information about NTP
sessions.
display ntp-service sessions [ verbose ] [ |
{ begin | exclude | include }
regular-expression ]
Available in any
view
Display brief information about the
NTP servers from the local device back
to the primary reference source.
display ntp-service trace [ | { begin | exclude |
include } regular-expression ]
Available in any
view