Configuring Ntp Authentication In Broadcast Mode - HPE FlexNetwork 5510 HI Series Network Management And Monitoring Configuration Manual

Table 3 NTP authentication results
Active peer
Enable NTP
authenticatio
n
Stratum level of the active and passive peers is not considered.
Yes
Yes
Yes
Yes
Yes
No
No
The active peer has a higher stratum than the passive peer.
Yes
The passive peer has a higher stratum than the active peer.
Yes
Yes

Configuring NTP authentication in broadcast mode

To ensure a successful NTP authentication, configure the same authentication key ID, algorithm, and
key on the broadcast server and client. Make sure the peer device is allowed to use the key ID for
authentication on the local device.
To configure NTP authentication for a broadcast client:
Step
1. Enter system view.
2. Enable
authentication.
3. Configure
authentication key.
Configur
e a key Associat
and e the key
configure with
it as a passive
trusted peer
key
Yes Yes
Yes Yes
Yes Yes
N/A No
N/A No
N/A N/A
N/A N/A
No Yes
No Yes
No Yes
Command
system-view
NTP
ntp-service authentication enable
•
Release
ntp-service
authentication-keyid
authentication-mode
{ cipher | simple } value
•
Release
an NTP
ntp-service
authentication-keyid
authentication-mode
{ hmac-sha-1 | hmac-sha-256 |
hmac-sha-384 | hmac-sha-512 |
md5 } { cipher | simple } string
[ acl ipv4-acl-number | ipv6 acl
Passive peer
Configure a
Enable NTP key
a authenticatio configure it
n as a trusted
key
Yes Yes
Yes No
No N/A
Yes N/A
No N/A
Yes N/A
No N/A
N/A N/A
Yes N/A
No N/A
1111:
keyid
md5
1121 and later:
keyid
20
Authentication
and
result
Succeeded
Failed
Failed
Failed
No authentication
Failed
No authentication
Failed
Failed
No authentication
Remarks
N/A
By default, NTP authentication is
disabled.
By default, no NTP authentication
key is configured.