HP VPN Firewall Appliances System Management and Maintenance Configuration Guide

131
source reference stra reach poll now offset delay disper
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[12345] 1.0.1.11 127.127.1.0 2 63 64 3 -75.5 31.0 16.5
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
Total associations : 1
NTP symmetric peers mode configuration example
Network requirements
Perform the following configurations to synchronize time among devices:
• As shown in Figure 58, the local clock of Firewall A is to be configured as a reference source, with
the stratum lev
el 2.
• The local clock Firewall C is to be configured as a reference source, with the stratum level 1.
• Firewall B operates in client mode and Firewall A is to be used as the NTP server of Device B.
• Firewall C operates in symmetric-active mode and Firewall B acts as the peer of Firewall C.
Figure 58 Network diagram
Configuration procedure
1. Set the IP address for each interface as shown in Figure 58. (Details not shown.)
2. Configure Firewall A:
# Specify the local clock as the reference source, with the stratum level 2.
<FirewallA> system-view
[FirewallA] ntp-service refclock-master 2
3. Configure Firewall B:
# Specify Firewall A as the NTP server of Firewall B.
<FirewallB> system-view
[FirewallB] ntp-service unicast-server 3.0.1.31
4. Configure Firewall C (after Firewall B is synchronized to Firewall A):
# Specify the local clock as the reference source, with the stratum level 1.
<FirewallC> system-view
[FirewallC] ntp-service refclock-master 1