Cisco DPC3827 User Manual page 36

How Do I Configure My DOCSIS Residential Gateway?
Select the Firewall tab to open the Security Firewall page.
Use the descriptions and instructions in the following table to configure the firewall
for your residential gateway. After you make your selections, click Save Settings to
apply your changes or Cancel Changes to cancel.
Section
Firewall
Filters
36
Field Description
SPI Firewall Protection
SPI Firewall Protection blocks Denial of Service (DoS) attacks. A DoS
attack does not attempt to steal data or damage your computers, but
it overloads your Internet connection so you cannot use it.
Select the desired option:

Enable (factory default)

Disable
Filter Proxy
Enables/disables filter proxy. If local users have access to WAN
proxy servers, they may be able to circumvent the content filters and
access Internet sites blocked by the device. If you select the Filter
Proxy feature, it will block access to any WAN proxy servers.
Block Pop-Up Windows
Enables/disables popup windows. Some commonly used
applications employ popup windows as part of the application. If
you disable popup windows, it may interfere with some of these
applications.
Block Web Page Cookies
Enables/disables cookie blocking. This feature filters the unsolicited
delivery of cookies to devices from the Internet to devices in your
private local network. Cookies are computer files that contain
personal information or web surfing behavior data.
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