24
Table 4
NTP authentication results
Broadcast server
Broadcast client
Authentication result
Enable
NTP
authentic
ation
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.
To configure NTP authentication for a multicast client:
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