NTP client / server with authentication
SERVER CONFIG ntp authentication-key 1 md5 0802657D2A36 7 ntp master 5 CLIENT CONFIG ntp authentication-key 1 md5 1531223F2705 7 ntp authenticate ntp trusted-key 1 ntp server 10.0.12.1 key 1 Notes: the client authenticates the time source, server must have the key.
