HP MSR2000/3000/4000 Router Series Network Management and Monitoring Configuration Guide

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Active
p
eer Passive
p
eer
Authentication result
Enable
NTP
authentic
ation
Configure a
key and
configure it
as a trusted
ke
y
Associate the
key with an
passive peer
Enable NTP
authentication
Configure a
key and
configure it as
a trusted key
Yes Yes Yes Yes No
Failed. NTP messages
cannot be sent and
received correctly.
Yes Yes Yes No N/A
Failed. NTP messages
cannot be sent and
received correctly.
Yes N/A No Yes N/A
Failed. NTP messages
cannot be sent and
received correctly.
Yes N/A No No N/A
No authentication.
NTP messages can be
sent and received
correctly.
No N/A N/A Yes N/A
Failed. NTP messages
cannot be sent and
received correctly.
No N/A N/A No N/A
No authentication.
NTP messages can be
sent and received
correctly.
The active peer has a higher stratum than the passive peer.
Yes No Yes N/A N/A
Failed. NTP messages
cannot be sent and
received correctly.
The passive peer has a higher stratum than the active peer.
Yes No Yes Yes N/A
Failed. NTP messages
cannot be sent and
received correctly.
Yes No Yes No N/A
No authentication.
NTP messages can be
sent and received
correctly.
Configuring NTP authentication in broadcast mode
When you configure NTP authentication in broadcast mode, enable NTP authentication, configure an
authentication key, set the key as a trusted key on both the broadcast client and server, and configure an
NTP authentication key on the broadcast server. The key IDs and key values configured on the broadcast
server and client must be the same. Otherwise, NTP authentication fails.
To configure NTP authentication for a broadcast client: