Security - Tripp Lite B020-U16-19-IP Owner's Manual

7. Administration

7.2.16 Security

The following section describes the settings found in the Security
sub-section.
Login Failures
The Login Failures section allows you to set up the parameters for what occurs when an account fails to login successfully. To enable the
settings entered here, check the Enable checkbox. The table below describes the settings found in this section.
Note: When the Login Failures settings are disabled, there is no restriction on the number of login failures. It is strongly recommended that
you enable these features, and that both the Lock Client PC and Lock Account settings are enabled.
Setting Description
Allowed Determines the number of failed login attempts an account gets before they are prevented from accessing the KVM switch.
Timeout Determines the amount of time that the user is prevented from accessing the KVM switch after exceeding the maximum number of
failed login attempts.
Lock Client PC When this checkbox is checked, the computer used to unsuccessfully access the KVM will be locked out after exceeding the
maximum number of failed login attempts. Note: This feature blocks the computer using its IP address. If the computer IP address
is changed, it will be able to access the KVM in spite of this setting.
Lock Account When this checkbox is checked, the account used to unsuccessfully access the KVM will be locked out after exceeding the
maximum number of failed login attempts.
Filtering
To enable IP and/or MAC filtering, click the IP Filter Enable and/or
MAC Filter Enable checkbox. There are a maximum of 100 filters
allowed for each.
• If the include button is checked, all the addresses within the filter
range are allowed access to the B020-Series KVM Switch; all
other addresses are denied access.
• If the exclude button is checked, all the addresses within the filter
range are denied access to the B020-Series KVM Switch; all
other addresses are allowed access.
IP Filtering
To add an IP filter:
1. Check the IP Filter Enable check box.
2. Click Add. A dialog box similar to the one below appears:
3. To filter a range of IP addresses, enter the starting IP address in
the From field, and the ending IP address in the To field.
4. After filtering in the addresses, click OK.
5. Repeat these steps for any additional IP addresses you want to
filter.
( continued )
To delete an IP filter:
Select the desired IP filter from the list and click Delete.
To modify an IP filter:
1. Select the desired IP filter from the list and click Modify. A Modify
dialog box similar to the Add dialog box will appear.
2. Delete the old start IP address and replace it with the new one.
3. Delete the old end IP address and replace it with the new one.
Click OK.
Note: To block a computer from accessing the B020-Series KVM
Switch, you do not need to filter both its IP address and its MAC
address. Any computer blocked by an IP filter will be denied access
to the KVM switch, even if the computer is allowed to access the
KVM switch under the MAC filters that are set up.
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