Blocking Web Components - Cisco RV120W Administration Manual

Configuring the Firewall
Configuring Content Filtering
STEP 1
STEP 2
NOTE
STEP 3
Cisco RV120W Administration Guide

Blocking Web Components

Certain commonly-used web components can be blocked for increased security.
Some of these components can be used by malicious websites to infect
computers that access them.
Choose Firewall > Content Filtering.
With content filtering enabled, under Web Components, select the check box for
each component you wish to block:
• Proxy—A proxy server (or simply, proxy) allows computers to route
connections to other computers through the proxy, thus circumventing
certain firewall rules. For example, if connections to a specific IP address
are blocked by a firewall rule, the requests can be routed through a proxy
that is not blocked by the rule, rendering the restriction ineffective. Enabling
this feature blocks proxy servers.
• Java—Blocks java applets from being downloaded from pages that contain
them. Java applets are small programs embedded in web pages that
enable dynamic functionality of the page. A malicious applet can be used to
compromise or infect computers. Enabling this setting blocks Java applets
from being downloaded.
• ActiveX—Similar to Java applets, ActiveX controls are installed on a
Windows computer while running Internet Explorer. A malicious ActiveX
control can be used to compromise or infect computers. Enabling this
setting blocks ActiveX applets from being downloaded.
• Cookies—Cookies are used to store session information by websites that
usually require login. However, several websites use cookies to store
tracking information and browsing habits. Enabling this option filters out
cookies from being created by a website.
Many websites require that cookies be accepted in order for the site to be
accessed properly. Blocking cookies can cause many websites to not function
properly.
Click Save.
4
73