
80
Active peer Passive
peer
Authentication result
Enable NTP
authentication
Configure a
key and
configure it
as a trusted
key
Associate
the key
with a
passive
peer
Enable NTP
authentication
Configure a
key and
configure it
as a trusted
key
Yes Yes Yes
Yes
Yes
Succeeded. NTP
messages can be sent
and received correctly.
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.