Firewall
Configuring Content Filtering to Control Internet Access
Cisco ISA500 Series Integrated Security Appliances Administration Guide 284
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STEP 4 Click Save to apply your settings.
Configuring Advanced Content Filtering Settings
STEP 1 Click Firewall > Content Filtering > Advanced S ettings.
STEP 2 Enter the following information:
•Filter Traffic on HTTP Port: Enter the port number that is used for filtering
HTTP traffic. Content Filtering only monitors and controls the website visits
through this HTTP port. The default value is 80.
•Filter Traffic on HTTPS port: Enter the port number that is used for filtering
HTTPS traffic. Web URL Filtering only monitors and controls the website
visits through this HTTPS port. The default value is 443.
•Blocked Web Components: You can block web components like Proxy,
Java, ActiveX, and Cookies. By default, all of them are permitted.
-Proxy: Check this box to block proxy servers, which can be used to
circumvent certain firewall rules and thus present a potential security
gap.
-Java: Check this box to block Java applets that can be downloaded from
pages that contain them.
-ActiveX: Check this box to prevent ActiveX applets from being
downloaded through Internet Explorer.
-Cookies: Check this box to block cookies, which typically contain
sessions.
•Action: Choose one of the following actions when a web page is blocked:
-Display Default Blocked Page when the requested page is blocked:
Displays the default block page if a web page is blocked. If you choose
this option, the message that you specify in the Block Message field will
show on the default block page.
-Redirect URL: Redirects to a specified web page if a web page is
blocked. If you choose this option, enter a desired URL to be redirected.
Make sure that specified URL is allowed by the Website Access Control
List.