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Chapter 5: Configuring the Wireless-G Cable Gateway

The Access Restrictions Tab

Wireless-G Cable Gateway

Filter Internet Traffic Tab

This screen is used to filter or block ports from Internet access by IP address or Port Range.

IP Address Range

To set up a filter using IP addresses, enter the range of IP addresses you wish to filter in the

Start

and

End

fields.

Users who have filtered IP addresses will not be able to access the Internet at all. If you only want to filter one IP

address instead of a range of IP addresses, enter the same value into both fields. For instance, if you wish to filter

the PC with the IP address of 192.168.0.5, enter 5 into both fields on one line: 192.168.0.5 ~ 192.168.0.5.

Port Range

Enter the port numbers you want to filter in the

Start

and

End

fields. To filter users by network port number, select

the protocol you want to filter,

TCP

,

UDP

, or

Both

, from the

Protocol

drop-down menu. Users connected to the

Gateway will no longer be able to access any port number listed there.

Click the

Enable

checkbox for each filter you want the Gateway to use.

When finished making your changes on this tab, click the

Save Settings

button to save these changes, or click

the

Cancel Changes

button to undo your changes.

Figure 5-23: Filter Internet Traffic

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Chapter 5: Configuring the Wireless-G Cable Gateway

The Applications and Gaming Tab

Wireless-G Cable Gateway

The Applications and Gaming Tab

Port Range Forwarding

The

Port Forwarding

screen sets up public services on your network, such as web servers, ftp servers, e-mail

servers, or other specialized Internet applications. (Specialized Internet applications are any applications that use

Internet access to perform functions such as videoconferencing or online gaming. Some Internet applications

may not require any forwarding.)

When users send this type of request to your network via the Internet, the Gateway will forward those requests to

the appropriate computer. Any computer whose port is being forwarded should have its DHCP client function

disabled and should have a new static IP address assigned to it because its IP address may change when using

the DHCP function.

•

Application. Enter the name you wish to give each application.

•

Start and End. Enter the starting and ending numbers of the port range you wish to forward.

•

Protocol. Select the type of protocol you wish to use for each application:

TCP

,

UDP

, or

Both

.

•

IP Address. Enter the IP Address of the system to which the traffic should be forwarded.

Click the

Enable

checkbox for each port forwarding setting you want the Gateway to use.

When finished making your changes on this tab, click the

Save Settings

button to save these changes, or click

the

Cancel Changes

button to undo your changes.

Figure 5-24: Port Range Forwarding

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Chapter 5: Configuring the Wireless-G Cable Gateway

The Applications and Gaming Tab

Wireless-G Cable Gateway

Port Triggering

Port Triggering is used for special applications that can request a port to be opened on demand. For this feature,

the Gateway will watch outgoing data for specific port numbers. The Gateway will remember the IP address of the

computer that sends a transmission requesting data, so that when the requested data returns through the

Gateway, the data is pulled back to the proper computer by way of IP address and port mapping rules.

•

Application. Enter the name you wish to give each application.

•

Start Port and End Port. Enter the starting and ending Triggered Range numbers and the Incoming Forwarded

Range numbers of the port(s) you wish to forward.

•

Protocol. Select the type of protocol you wish to use for each application:

TCP

,

UDP

, or

Both

.

Click the

Enable

checkbox for each port triggering setting you want the Gateway to use.

When finished making your changes on this tab, click the

Save Settings

button to save these changes, or click

the

Cancel Changes

button to undo your changes.

DMZ

The DMZ screen allows one local user to be exposed to the Internet for use of a special-purpose service such as

Internet gaming and videoconferencing through DMZ Hosting. DMZ hosting forwards all the ports for one

computer at the same time, which differs from Port Range Forwarding, which can only forward a maximum of

10 ranges of ports.

•

DMZ Hosting. This feature allows one local user to be exposed to the Internet for use of a special-purpose

service such as Internet gaming and videoconferencing. To use this feature, select

Enable

. To disable DMZ,

select

Disable

.

•

DMZ Host IP Address. To expose one computer, enter the computer’s IP address. To get the IP address of a

computer, refer to “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter.”

When finished making your changes on this tab, click the

Save Settings

button to save these changes, or click

the

Cancel Changes

button to undo your changes.

Figure 5-26: DMZ

Figure 5-25: Port Triggering

38

Chapter 5: Configuring the Wireless-G Cable Gateway

The Administration Tab

Wireless-G Cable Gateway

The Administration Tab

Security Tab

The

Security

screen allows you to change the Gateway’s access settings as well as configure the UPnP (Universal

Plug and Play) and Reporting features.

Security

To ensure the Gateway’s security, you will be asked for your password when you access the Gateway’s Web-

based Utility. The default password is

admin

.

•

Gateway Password. It is recommended that you change the default password to one of your choice.

•

Re-enter to confirm. Re-enter the Gateway’s new Password to confirm it.

•

Remote Administration. When enabled, the Web-based Utility can be accessed from the Internet. To connect,

type

in the web browser’s

Address

field, but replace 127.0.0.1 with the WAN (Internet)

IP address of the Gateway.

•

Administration Port. Enter the port number you will use to remotely access the Gateway. The default is

8080

.

UPnP

UPnP allows Windows XP to automatically configure the Gateway for various Internet applications, such as

gaming and videoconferencing.

UPnP. To enable UPnP, click

Enable

.

Reporting

E-Mail Alerts. To enable E-Mail Alerts, click

Enable

.

•

Your E-Mail Address. Enter the e-mail address that will receive alert logs in the field provided.

•

Your SMTP Server Name. Enter the IP Address of the SMTP server.

Logs

You can view security events and have logs e-mailed to you.

Figure 5-27: Security

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Chapter 5: Configuring the Wireless-G Cable Gateway

The Administration Tab

Wireless-G Cable Gateway

To send the logs, click the

E-mail Log

button. To clear the log entries displayed on this screen, click the

Clear

Log

button.

When finished making your changes on this tab, click the

Save Settings

button to save these changes, or click

the

Cancel Changes

button to undo your changes.

Diagnostics Tab

Use this screen to run a ping test.

Ping Test

Ping Test Parameters

•

Ping Target. Enter the IP Address that you want to ping in the field provided. This can be either a local (LAN) IP

or an Internet (WAN) IP address.

•

Ping Size. Enter the size of the ping packets you want to use.

•

Number of Pings. Enter the number of times that you want to ping.

•

Ping Interval. Enter the ping interval in milliseconds.

•

Ping Timeout. Enter the timeout period in milliseconds.

•

Ping Result. The results of the ping test will be shown here.

Click the

Start Test

button to start the Ping Test. Click the

Abort

Test

button to stop the test. Click the

Refresh

button to refresh the screen. Click the

Clear Results

button to clear the screen.

Figure 5-28: Ping Test