14 CCM Installer/User Guide
To update the boot or application firmware on the appliance, use the Server FLASH command
(page 67).
The appliance may be rebooted or reinitialized by pressing a button on the appliance or by issuing a
command; see Rebooting and Reinitializing the CCM Appliance on page 10.
Enabling/disabling features
Updating the Appliance Clock
The CCM appliance supports the NTP protocol. When NTP is enabled, the real time clock on the
CCM appliance will be updated immediately after NTP is enabled, each time the appliance reboots
and optionally, at specified intervals.
You may specify one or two NTP servers to provide the time. An NTP server may be external or an
internal server that you supply. The primary server will be queried for the time first. If it does not
respond with a valid time, the secondary server will be queried.
To enable or disable NTP:
To enable NTP, issue an NTP command with the Enable parameter.
NTP ENABLE [IP=<prim_add>[,<sec_addr>]] [UPDATE=<hours>]
If this is the first time NTP is being enabled, you must specify at least one NTP server address.
If you want the time to be updated periodically, specify an update interval of up to 99 hours. If you
specify a zero interval value (which is the default), the time will be updated only when the CCM
appliance reboots.
When you enable NTP, you are prompted to confirm or cancel the operation.
To disable NTP, issue an NTP command with the Disable parameter.
NTP DISABLE
Table 3.1: Appliance Feature Reference
For information about using this feature See this section
Accessing a Network Time Protocol (NTP) server to
update the time
Updating the Appliance Clock on page 14
Using an NFS server to store device session data NFS history files on page 35
PPP Using PPP on page 19
Using a RADIUS server for user authentication RADIUS authentication on page 30
Security lock-out Using security lock-out on page 32
Session sharing Session sharing on page 23
SNMP Managing the CCM Appliance Using SNMP on page 39
SSH Using SSH on page 20
