Time Protocols

SNTP: Viewing, Selecting, and Configuring

The following must be performed on the SNTP server:

The same authentication key-identifier, trusted key, authentication mode and key-value that were configured on the SNTP client must also be configured on the SNTP server.

SNTP server authentication must be enabled on the server.

If any of the parameters on the server are changed, the parameters have to be changed on all the SNTP clients in the network as well. The authentication check will fail on the clients otherwise, and the SNTP packets will be dropped.

Configuring the Key-Identifier, Authentication Mode, andKey-ValueThis command configures the key-id, authentication-mode, and key-value,

which are required for authentication. It is executed in the global configura­ tion context.

Syntax: sntp authentication key-id <key-id> authentication-mode <md5> key-value <key-string> [trusted] no sntp authentication key-id <key-id>

Configures a key-id, authentication-mode (MD5 only), and key-value, which are required for authentication.

The no version of the command deletes the authentication key.Default: No default keys are configured on the switch.key-id:A numeric key identifier in the range of 1­ 4,294,967,295(232)that identifies the unique key value. It is sent in theSNTP packet.

key-value<key-string>:The secret key that is used to generate the message digest. Up to 32 characters are allowed for <key- string>.

ProCurve(config)# sntp authentication key-id 55 authentication-mode md5 key-value secretkey1

Figure 9-12. Example of Setting Parameters for SNTP Authentication

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