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Reference Manual for Cable/DSL Wireless Router WGR614
3-12
Wireless Configuration
Manual - Enter ten hexadecimal digits (any combination of 0-9, a-f, or A-F)
Select which of the four keys will be active.
Please refer to
“Overview of WEP Parameters” on page D-5
for a full explanation of each of
these options, as defined by the IEEE 802.11 wireless communication standard.
5.
Click Apply to save your settings.
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Content Filtering
4-1
Chapter 4
Content Filtering
This chapter describes how to use the content filtering features of the Model WGR614 Cable/DSL
Wireless Router to protect your network. These features can be found by clicking on the Content
Filtering heading in the Main Menu of the browser interface.
Content Filtering Overview
The Model WGR614 Cable/DSL Wireless Router provides you with Web content filtering options,
plus browsing activity reporting and instant alerts via e-mail. Parents and network administrators
can establish restricted access policies based on time-of-day, web addresses and web address
keywords. You can also block Internet access by applications and services, such as chat or games.
To configure these features of your router, click on the subheadings under the Content Filtering
heading in the Main Menu of the browser interface. The subheadings are described below:
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Reference Manual for Cable/DSL Wireless Router WGR614
4-2
Content Filtering
Blocking Access to Internet Sites
The WGR614 router allows you to restrict access based on web addresses and web address
keywords. Up to 255 entries are supported in the Keyword list. The Block Sites menu is shown in
Figure 4-1
below:
Figure 4-1:
Block Sites menu
To enable keyword blocking, select either “Per Schedule” or “Always”, then click Apply. If you
want to block by schedule, be sure that a time period is specified in the Schedule menu.
To add a keyword or domain, type it in the Keyword box, click Add Keyword, then click Apply.
To delete a keyword or domain, select it from the list, click Delete Keyword, then click Apply.
Keyword application examples:
If the keyword "XXX" is specified, the URL <http://www.badstuff.com/xxx.html> is blocked.
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Reference Manual for Cable/DSL Wireless Router WGR614
Content Filtering
4-3
If the keyword “.com” is specified, only websites with other domain suffixes (such as .edu or
.gov) can be viewed.
If you wish to block all Internet browsing access during a scheduled period, enter the keyword
“.” and set the schedule in the Schedule menu.
To specify a Trusted User, enter that PC’s IP address in the Trusted User box and click Apply. You
may specify one Trusted User, which is a PC that will be exempt from blocking and logging. Since
the Trusted User will be identified by an IP address, you should configure that PC with a fixed IP
address.
Blocking Access to Internet Services
The WGR614 router allows you to block the use of certain Internet services by PCs on your
network. This is called services blocking or port filtering. The Block Services menu is shown
below:
Figure 4-2:
Block Services menu
Services are functions performed by server computers at the request of client computers. For
example, Web servers serve web pages, time servers serve time and date information, and game
hosts serve data about other players’ moves. When a computer on your network sends a request for
service to a server computer on the Internet, the requested service is identified by a service or port
number. This number appears as the destination port number in the transmitted IP packets. For
example, a packet that is sent with destination port number 80 is an HTTP (Web server) request.
To enable service blocking, select either Per Schedule or Always, then click Apply. If you want to
block by schedule, be sure that a time period is specified in the Schedule menu.
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Reference Manual for Cable/DSL Wireless Router WGR614
4-4
Content Filtering
To specify a service for blocking, click Add. The Add Services menu will appear, as shown below:
Figure 4-3:
Add Services menu
From the Service Type list, select the application or service to be allowed or blocked. The list
already displays several common services, but you are not limited to these choices. To add any
additional services or applications that do not already appear, select User Defined.
Configuring a User Defined Service
To define a service, first you must determine which port number or range of numbers is used by
the application. The service numbers for many common protocols are defined by the Internet
Engineering Task Force (IETF) and published in RFC1700, “Assigned Numbers.” Service
numbers for other applications are typically chosen from the range 1024 to 65535 by the authors of
the application. This information can usually be determined by contacting the publisher of the
application or from user groups of newsgroups.
Enter the Starting Port and Ending Port numbers. If the application uses a single port number, enter
that number in both boxes.
If you know that the application uses either TCP or UDP, select the appropriate protocol. If you are
not sure, select Both.
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