Configuring Ntp Client/Server Mode With Authentication - HP 5500 EI Series Configuration Manual

Nominal frequency: 64.0000 Hz
Actual frequency: 64.0000 Hz
Clock precision: 2^7
Clock offset: 0.0000 ms
Root delay: 40.00 ms
Root dispersion: 10.83 ms
Peer dispersion: 34.30 ms
Reference time: 16:02:49.713 UTC Sep 19 2005 (C6D95F6F.B6872B02)
The output shows that Device A has synchronized to Device C because it has a higher stratum than
Device C.
# Display NTP session information for Device A.
[DeviceA-Vlan-interface3] display ntp-service sessions
**************************************************************************
[1234] 3.0.1.31
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
Total associations :
The output shows that an association has been set up between Device A and Device C.

Configuring NTP client/server mode with authentication

Network requirements
• As shown in
Configure Device B to operate in client mode and use Device A as its NTP server.
•
Enable NTP authentication on both Device A and Device B.
•
Figure 15 Network diagram
Configuration procedure
1. Set the IP address for each interface as shown in
2. Configure Device B:
<DeviceB> system-view
# Enable NTP authentication on Device B.
[DeviceB] ntp-service authentication enable
# Set an authentication key.
[DeviceB] ntp-service authentication-keyid 42 authentication-mode md5 aNiceKey
# Specify the key as a trusted key.
[DeviceB] ntp-service reliable authentication-keyid 42
# Specify Device A as the NTP server of Device B.
source reference
127.127.1.0
1
Figure 15, configure Device A as a reference source, with the stratum level 2.
stra reach poll
2 255 64
Figure 15. (Details not shown.)
31
now offset delay
26 -16.0 40.0
disper
16.6