Authenticated Network Time Protocol Support
With this release, the authenticated Network Time Protocol (NTP) capability for Cisco Unified Communications Manager is supported. This support is added to secure the NTP server connection to Cisco Unified Communications Manager. In the previous releases, the Cisco Unified Communications Manager connection to the NTP server was not secure.
This feature is based on symmetric key-based authentication and is supported by NTPv3 and NTPv4 servers. Cisco Unified Communications Manager supports only SHA1-based encryption. The SHA1-based symmetric key support is available from NTP version 4.2.6 and above.
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Symmetric Key
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No Authentication
You can check the authentication status of the NTP servers through administration CLI or NTP Server List page of the Cisco Unified OS Administration application.
CLI Updates for Authenticated NTP
For the authenticated NTP support feature, the following new CLI command is added for this release:
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utils ntp auth symmetric-key
—This command helps you enable or disable authentication of the selected NTP server. The authentication is based on symmetric keyID and key. The symmetric key is stored in the encrypted format in Cisco UnifiedCommunications Manager.
OS Administration Online Help Updates
Following column has been added in the NTP Server List page of the Cisco Unified Operating System Administration application.
NTP Servers Settings
Field |
Description |
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NTP Authentication Status |
Displays the authentication status of an NTP server. |