H3C Technologies H3C SecPath F1000-E - Manual (Page 137)

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Figure 12 Network diagram for configuration of NTP broadcast mode with authentication
Configuration procedure
Step1 Set the IP address for each interface as shown in Figure 12 . The configuration procedure is omitted.
Step2 Configuration on Device C:
# Specify the local clock as the reference source, with the stratum level of 3.
system-view
[DeviceC] ntp-service refclock-master 3
# Configure NTP authentication.
[DeviceC] ntp-service authentication enable
[DeviceC] ntp-service authentication-keyid 88 authentication-mode md5 123456
[DeviceC] ntp-service reliable authentication-keyid 88
# Specify Device C as an NTP broadcast server, and specify an authentication key.
[DeviceC] interface gigabitEthernet0ethernet 1/1
[DeviceC-GigabitEthernet0/1] ntp-service broadcast-server authentication-keyid 88
Step3 Configuration on Device D:
# Configure NTP authentication.
system-view
[DeviceD] ntp-service authentication enable
[DeviceD] ntp-service authentication-keyid 88 authentication-mode md5 123456
[DeviceD] ntp-service reliable authentication-keyid 88
# Configure Device D to work in the NTP broadcast client mode.
[DeviceD] interface gigabitEthernet0/1
[DeviceD-GigabitEthernet0/1] ntp-service broadcast-client
Now, Device D can receive broadcast messages through GigabitEthernet 0/1, and Device C can send
broadcast messages through GigabitEthernet 0/1. Upon receiving a broadcast message from Device C,
Device D synchronizes its clock to that of Device C.
# View the NTP status of Device D after clock synchronization.
[DeviceD-GigabitEthernet0/1] display ntp-service status
Clock status: synchronized
Clock stratum: 4