H3C S5500-EI series Operation Manual page 1167

Operation Manual – NTP
H3C S5500-EI Series Ethernet Switches
To do...
Enter system view
Enable NTP
authentication
Configure an NTP
authentication key
Configure the key
as a trusted key
Associate the
specified key with
an NTP server
Note:
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.
II. Configuring NTP authentication for a server
Follow these steps to configure NTP authentication for a server:
To do...
Enter system view
Enable NTP
authentication
Configure an NTP
authentication key
Use the command...
system-view
ntp-service authentication
enable
ntp-service
authentication-keyid keyid
authentication-mode md5 value
ntp-service reliable
authentication-keyid keyid
Server/client 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
Use the command...
system-view
ntp-service authentication
enable
ntp-service
authentication-keyid keyid
authentication-mode md5
value
1-16
Chapter 1 NTP Configuration
Remarks
—
Required
Disabled by default
Required
No NTP authentication
key by default
Required
No authentication key is
configured to be trusted
by default
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.
Remarks
—
Required
Disabled by default
Required
No NTP authentication
key by default