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-idand key-valuecan 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.

 

 

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