Authenticated NTP

The Oracle® Enterprise Session Border Controller can authenticate NTP server requests using MD5. The configured MD5 keys are encrypted and obscured in the ACLI. You configure an authenticated NTP server with its IP address, authentication key, and the key ID. Corresponding key and key IDs are provided by the NTP server administrator.

To configure an authenticated NTP server:

1. Access the ntp-config configuration element.

   ORACLE# configure terminal
   ORACLE(configure)# ntp-sync
   ACMEPACKET(ntp-config)#

2. Type select.

   ORACLE(ntp-config)# select

3. Access the auth-servers configuration element

   ORACLE(ntp-config)# auth-servers
   ORACLE(auth-servers)#

4. ip-address — Enter the IPv4 or IPv6 address of the NTP server that supports authentication.
5. key-id — Enter the key ID of the key you enter in the next step. This value’s range is 1 - 999999999.
6. key — Enter the key used to secure the NTP requests. The key is a string 1 - 31 characters in length.
7. Type done to save your work.
8. Type exit to return to the previous configuration level.
9. Type done to save the parent configuration element.