108 Mbps Wireless Router WGT624 v4 Reference Manual

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Wireless Settings and Security

v1.0, May 2007

•

Wireless Card Access List.

When the Trusted PCs Only radio button is selected, the

WGT624 v4 checks the MAC address of the wireless station and allows only connections to

computers identified on the trusted computers list.

•

108Mbps Settings.

–

Disable Advanced 108Mbps Features

: Disables data compression, packet bursting, and

large frame support.

–

Enable eXtended Range

: Provides significantly longer range than basic 802.11,

maintaining connectivity even when signals have to pass through dense walls, floors, or

other barriers. XR products require no additional configuration and are fully compatible

with standard 802.11 technologies.

Note:

If the current wireless mode is Auto 108 Mbps, then this feature cannot be

changed. It is to ensure the highest throughput when in Auto 108 Mbps

wireless mode.

Note:

The

Fragmentation Threshold

,

CTS/RTS Threshold

, and

Preamble Mode

options are reserved for wireless testing and advanced configuration only. Do not

change these settings.

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v1.0, May 2007

Chapter 3

Content Filtering

This chapter describes how to use the WGT624 v4 wireless router content filtering features to

protect your network.

The WGT624 v4 wireless router provides you with Web content filtering options, plus browser

activity reporting and instant alerts via e-mail. You 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.

Log in to the router at its default LAN address of

with its default user

name of

admin

and default password of

password

, or using whatever LAN address and password

you have set up. The content filtering features are on the router’s main menu.

Blocking Access to Internet Sites

You can restrict access based on Web addresses and web address keywords. Up to 255 entries are

supported in the Keyword list. The Block Sites page is shown below:

•

To enable keyword blocking, select either Per Schedule or Always, and then click

Apply

. If

you want to block by schedule, be sure that a time period is specified in the Schedule page.

Figure 3-1

108 Mbps Wireless Router WGT624 v4 Reference Manual

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Content Filtering

v1.0, May 2007

•

To add a keyword or domain, type it in, click Add Keyword, and then click

Apply

.

•

To delete a keyword or domain, select it from the list, click Delete Keyword, and then click

Apply

.

•

To specify a trusted user, enter that computer’s IP address in the Trusted User box and then

click

Apply

. You may specify one trusted user, which is a computer that will be exempt from

blocking and logging. Since the trusted user will be identified by an IP address, you should

configure that computer with a fixed IP address.

Keyword Application Examples

•

If the keyword “XXX” is specified, the URL <http://www.badstuff.com/xxx.html> is blocked.

•

If the keyword “.com” is specified, only websites with other domain suffixes (such as .edu or

.gov) can be viewed.

•

If you want to block all Internet browsing access during a scheduled period, enter the keyword

“.” and set the schedule in the Schedule page.

Blocking Services (Port Filtering)

You can block the use of certain Internet services by computers on your network. This is called

services blocking or port filtering.

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.

108 Mbps Wireless Router WGT624 v4 Reference Manual

Content Filtering

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Blocking Access to Internet Services

To block access to Internet services:

1.

Click Block Access to go to the Block Services page:

2.

Select the Services Blocking setting that you want:

•

Never.

Do not block services.

•

Per Schedule.

Block services based on the schedule. Make sure that you specify a time

period in the Schedule page.

•

Always.

Always block services.

3.

Click

Apply

.

Adding a Service to be Blocked

To specify a service for blocking:

1.

On the Block Sites page, click Add. The Block Services Setup page appears:

Figure 3-2

Figure 3-3

108 Mbps Wireless Router WGT624 v4 Reference Manual

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Content Filtering

v1.0, May 2007

2.

From the Service Type drop-down list, select the application or service to be allowed or

blocked.

The list displays several common services, but you are not limited to these choices.

3.

To add any additional services or applications that do not already appear, select User Defined.

See

“Creating a User-Defined Service Type” on page 3-4

.

4.

You can use the Filter Services for settings to block the specified service for a single computer,

a range of computers (having consecutive IP addresses), or all computers on your network.

Creating a User-Defined Service Type

You will need to enter the protocol, starting point, and ending point for the service type.

•

Protocol.

If you know that the application uses either TCP or UDP, select the appropriate

protocol. If you are not sure, select TCP/UDP.

•

Starting Point and Ending Point.

Enter the starting port and ending port numbers. If the

application uses a single port number, enter that number in both boxes.

To define a service, you must determine which port number or range of numbers the

application uses. 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 or news groups.

•

Filter Services For.

You can block the specified service for a single computer, a range of

computers (having consecutive IP addresses), or all computers on your network.