Owner's Manual

106 Using the CMC Web Interface
5 Click Apply Changes to save your settings.
To refresh the contents of the Network Security page, click Refresh.
To print the contents of the Network Security page, click Print.
IP Range Mask Defines a specific range of IP addresses that can access the
CMC, a process called IP range checking.
IP range checking allows access to the CMC only from clients
or management stations whose IP addresses are within the user-
specified range. All other logins are denied.
For example:
IP range mask: 255.255.255.0
(11111111.11111111.11111111.00000000)
IP range address:192.168.0.255
(11000000.10101000.00000000.11111111)
The resulting IP address range is any address that contains
192.168.0, that is, any address from 192.168.0.0 through
192.168.0.255.
IP Blocking
Enabled
Enables the IP address blocking feature, which limits the
number of failed login attempts from a specific IP address for a
pre-selected time span.
• IP Blocking Fail
Count
Sets the number of login failures attempted from an IP address
before the login attempts are rejected from that address.
• IP Blocking Fail
Window
Determines the time span in seconds within which IP Blocking
Fail Count failures must occur to trigger the IP Block Penalty
Time.
• IP Blocking
Penalty Time
The time span in seconds within which login attempts from an
IP address with excessive failures are rejected.
NOTE: The IP Blocking Fail Count, IP Blocking Fail Window, and
IP Blocking Penalty Time fields are active only if the IP Blocking
Enabled check box (the property field preceding these fields) is
checked (enabled). In that case, you must manually type
IP Blocking Fail Count, IP Blocking Fail Window, and IP Blocking
Penalty Time properties.
Table 5-8. Network Security Page Settings (continued)
Settings Description