Netgear CG814M 사용자 설명서

4-6

Protecting Your Network

Most web surfing is done on port 80. The parental control feature monitors port 80 so proxy based 
web surfing would not be inspected by the parental controls. The proxy filter should be used if 
parental controls are being used.

A cookie is a text file saved by your web browser which is sent to a particular web servier every 
time you visit the site. Cookies are used to identify you to the web server automatically.

Java Applets are programs that run from within another application, such as a web browser. 

An ActiveX control is a Microsoft Windows program that can be downloaded from a web page 
and automatically executed by your web browser on your PC.

Many internet sites open additional browser windows, called popups. They are often used for 
advertisments. The CG814M can filter out many of these popup windows.

Firewall rules are used to block or allow specific traffic passing through from one side to the other. 
Inbound rules (WAN to LAN) restrict access by outsiders to private resources, selectively allowing 
only specific outside users to access specific resources. Instructions for setting up inbound rules 
can be found in 

. Outbound rules (LAN to WAN) determine what 

outside resources local users can have access to. This section describes how to set up outbound 
rules. 

A firewall has two default rules, one for inbound traffic and one for outbound. The default rules of 
the CG814M Gateway are:

•

Inbound: Block all access from outside except responses to requests from the LAN side.

•

Outbound: Allow all access from the LAN side to the outside.

You may define additional rules that will specify exceptions to the default rules. By adding custom 
rules, you can block or allow access based on the service or application, source or destination IP 
addresses, and time of day. You can also choose to log traffic that matches or does not match the