H3C Technologies H3C S3600 Series Switches - Manual (Page 880)

1-13
Configuring NTP authentication on the server
Follow these steps to configure NTP authentication on 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 key-id
authentication-mode md5
value Required
By default, no NTP
authentication key is
configured.
Configure the specified key as a
trusted key ntp-service reliable
authentication-keyid key-id
Required
By default, no trusted
authentication key is
configured.
Enter VLAN interface view interface Vlan-interface vlan-id —
Configure on the
NTP broadcast
server
ntp-service broadcast-server
authentication-keyid key-id
Associate
the specified
key with the
correspondi
ng
broadcast/m
ulticast client
Configure on the
NTP multicast
server
ntp-service multicast-server
authentication-keyid key-id
z In NTP broadcast server
mode and NTP multicast
server mode, you need to
associate the specified
key with the
corresponding
broadcast/multicast client
z You can associate an
NTP broadcast/multicast
client with an
authentication key while
configuring NTP mode.
You can also use this
command to associate
them after configuring the
NTP mode.
The procedure for configuring NTP authentication on the server is the same as that on the client.
Besides, the client and the server must be configured with the same authentication key.
Configuring Optional NTP Parameters
Complete the following tasks to configure optional NTP parameters:
Task Remarks
Configuring an Interface on the Local Switch to Send NTP messages Optional
Configuring the Number of Dynamic Sessions Allowed on the Local Switch Optional
Disabling an Interface from Receiving NTP messages Optional