HP VPN Firewall Appliances System Management and Maintenance Configuration Guide

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Figure 57 Network diagram
Configuration procedure
1. Set the IP address for each interface as shown in Figure 57. (Details not shown.)
2. Configure Device A:
# Specify the local clock as the reference source, with the stratum level 2.
<DeviceA> system-view
[DeviceA] ntp-service refclock-master 2
3. Configure Device B:
# Display the NTP status of Device B before clock synchronization.
<DeviceB> display ntp-service status
Clock status: unsynchronized
Clock stratum: 16
Reference clock ID: none
Nominal frequency: 64.0000 Hz
Actual frequency: 64.0000 Hz
Clock precision: 2^7
Clock offset: 0.0000 ms
Root delay: 0.00 ms
Root dispersion: 0.00 ms
Peer dispersion: 0.00 ms
Reference time: 00:00:00.000 UTC Jan 1 1900 (00000000.00000000)
# Specify Device A as the NTP server of Device B so that Device B synchronizes to Device A.
<DeviceB> system-view
[DeviceB] ntp-service unicast-server 1.0.1.11
# Display the NTP status of Device B after clock synchronization.
[DeviceB] display ntp-service status
Clock status: synchronized
Clock stratum: 3
Reference clock ID: 1.0.1.11
Nominal frequency: 64.0000 Hz
Actual frequency: 64.0000 Hz
Clock precision: 2^7
Clock offset: 0.0000 ms
Root delay: 31.00 ms
Root dispersion: 1.05 ms
Peer dispersion: 7.81 ms
Reference time: 14:53:27.371 UTC Sep 19 2005 (C6D94F67.5EF9DB22)
The output shows that Device B has synchronized to Device A. The stratum level of Device B is 3,
and that of Device A is 2.
# Display NTP session information for Device B, which shows that an association has been set up
between Device B and Device A.
[DeviceB] display ntp-service sessions