Filter
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Firewall 59
To control access to specific Internet services:
1 Click on Add PC, or click Edit in the Configure column to edit an existing
entry. The Access Control - Add PC screen displays (Figure 38
).
Figure 38 Access Control - Add PC Screen
2 Enter a description for the filter you are defining in the Client PC
Description field.
3 Enter the IP address or IP address range into the Client IP Address fields.
4 Select the services to be blocked. A list of popular services is given on this
screen; to block a particular service place a check in the appropriate
Blocking checkbox.
If the service to be restricted is not listed on the screen, you can enter a
custom range of ports at the bottom of the page, under User Defined
Blocked Ports.
5 If you want the restriction to only apply at certain times, select the
schedule rule to apply from the Schedule Rule drop down list.
Schedule Rules are defined on the Schedule Rule screen (see “Schedule
Rule” on page 60).
6 Click Apply to save the settings.
URL Filter
Select the URL Filter tab to specify the web sites or keywords that you
want to filter on your network. The URL Filter screen displays (Figure 39
).