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CMS-6R4 Series - User’s Guide
5.5.2.3. The Invalid Access Lockout Feature
When properly configured and enabled, the Invalid Access Lockout feature
will watch all login attempts made at all CMS-6R4 ports. If a given port
exceeds the selected number of invalid attempts specified for that port, then
that port will be automatically disabled for a user-defined length of time.
When an Invalid Access Lockout occurs, you can either wait for the Lockout
Duration period to elapse (after which, the CMS-6R4 will automatically
reactivate the port), or you can issue the /UL command (type
/UL
and press
[Enter]
) via the Text Interface to instantly unlock all CMS-6R4 serial ports.
Notes:
• The Invalid Access Lockout Feature is available to the Serial RS232
Ports, the Internal Modem Port, and the Network Port.
• When a Port is locked, an external modem connected to that port
will not answer.
• When a given CMS-6R4 serial port is locked, the other serial ports
will remain unlocked, unless the Invalid Access Lockout feature has
been triggered at those other ports.
• If any one of the CMS-6R4’s logical network ports is locked, all
other network connections to the unit will also be locked.
• All invalid access attempts at the CMS-6R4 Network Port are
cumulative (the count for invalid access attempts is determined
by the total number of all invalid attempts at all available logical
network ports.) If a valid login name/password is entered at any of
the logical network ports, then the count for all CMS-6R4 logical
network ports will be restarted.
• In the Text Interface, Invalid Access Lockout parameters are defined
via a submenu of the Telnet Port Parameters menu. In the Web
Browser Interface, Invalid Access Lockout parameters are defined
using the Telnet Parameters Menu as described in Section 5.5.2.2.
The Telnet Parameters Menu (Web Browser Interface) and Invalid Access
Lockout Menu (Text Interface) allow the following parameters to be defined:
•
Lockout Enable:
Enables/Disables the Invalid Access Lockout feature.
(Default = Off.)
•
Lockout Attempts:
The number of invalid attempts required to activate
the Invalid Access Lockout feature. (Default = 9.)
•
Lockout Duration:
The length of time ports will remain locked when
an Invalid Access Lockout occurs. If the duration is set at “Infinite”, then
ports will remained locked until the /UL command is issued. (Default =
30 Minutes.)
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