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Time Protocols
SNTP: Viewing, Selecting, and Configuring
This feature provides support for SNTP client authentication on HP ProCurve
switches, which addresses security considerations when deploying SNTP in
a network.
Requirements
The following must be configured to enable SNTP client authentication on the
switch.
SNTP Client Authentication Support
■ Timesync mode must be SNTP. Use the timesync sntp command.
(SNTP is disabled by default.)
■ SNTP must be in unicast or broadcast mode. See “Configuring Unicast
and Broadcast Mode” on page 9-21.
■ The MD5 authentication mode must be selected.
■ An SNTP authentication key-identifier (key-id) must be configured on
the switch and a value (key-value) must be provided for the authenti-
cation key. A maximum of 8 sets of key-id and key-value can be
configured on the switch.
■ Among the keys that have been configured, one key or a set of keys
must be configured as trusted. Only trusted keys will be used for SNTP
authentication.
■ If the SNTP server requires authentication, one of the trusted keys
has to be associated with the SNTP server.
■ SNTP client authentication must be enabled on the ProCurve switch.
If client authentication is disabled, packets are processed without
authentication. All of the above steps are necessary to enable authen-
tication on the client.
SNTP Server Authentication Support
Note SNTP server is not supported on ProCurve products.
9-17