Configuration Prerequisites; Configuration Procedure; Configuring Ntp Authentication - H3C S3100-52P Operation Manual

Operation Manual – NTP
H3C S3100-52P Ethernet Switch
synchronization: Synchronization right. This level of right permits the peer device
to synchronize its clock to the local switch but does not permit the peer device to
perform control query.
server: Server right. This level of right permits the peer device to perform
synchronization and control query to the local switch but does not permit the local
switch to synchronize its clock to the peer device.
peer: Peer access. This level of right permits the peer device to perform
synchronization and control query to the local switch and also permits the local
switch to synchronize its clock to the peer device.
From the highest NTP service access-control right to the lowest one are peer, server,
synchronization, and query. When a device receives an NTP request, it will perform
an access-control right match in this order and use the first matched right.

1.4.1 Configuration Prerequisites

Prior to configuring the NTP service access-control right to the local switch for peer
devices, you need to create and configure an ACL associated with the access-control
right. For the configuration of ACL, refer to ACL Configuration in Security Volume.

1.4.2 Configuration Procedure

Follow these steps to configure the NTP service access-control right to the local device
for peer devices:
Enter system view
Configure the NTP
service access-control
right to the local switch for
peer devices
Note:
The access-control right mechanism provides only a minimum degree of security
protection for the local switch. A more secure method is identity authentication.

1.5 Configuring NTP Authentication

In networks with higher security requirements, the NTP authentication function must be
enabled to run NTP. Through password authentication on the client and the server, the
clock of the client is synchronized only to that of the server that passes the
To do...
system-view
ntp-service access
{ peer | server |
synchronization |
query } acl-number
Use the command...
1-12
Chapter 1 NTP Configuration
Remarks
—
Optional
peer by default