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Table 5
NTP authentication results
Broadcast server
Broadcast client
Authentication result
Enable NTP
authentication
Configure
a key and
configure
it as a
trusted
key
Associate
the key
with a
broadcast
server
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 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.
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.
Configuring NTP authentication in multicast mode
When you configure NTP authentication in multicast mode:
•
Enable NTP authentication.
•
Configure an authentication key.
•
Set the key as a trusted key on both the multicast client and server.
•
Configure an NTP authentication key on the multicast server.
The key IDs and key values configured on the multicast server and client must be the same. Otherwise,
NTP authentication fails.