36

Setting up your wireless router

Setting Client IP filters

Your router can be configured to restrict access to the Internet, e-mail, or other network

services at specific days and times. Restriction can be set for a single computer, a range of

computers, or multiple computers.

To restrict Internet access to a single computer:

1

Open the

Firewall > Client IP filters

page, then enter the IP address of the computer you

want to restrict access to in the IP fields.

2

Enter

80

in both the port fields, select

Both

, then select

Block

. You can also select

Always

to block access all of the time.

3

Select the day to start on top, the time to start on top, the day to end on the bottom,

and the time to stop on the bottom.

4

Select

Enable

, then click

Apply Changes

. The computer at the IP address you

specified will now be blocked from Internet access at the times you specified. Be sure

you have selected the correct time zone under

Utilities

>

System Settings

>

Time Zone

.

Enabling the Demilitarized Zone (DMZ)

The DMZ feature lets you specify one computer on your network to be placed outside of the

firewall. This may be necessary if the firewall is causing problems with an application such as

a game or video conferencing application. Use this feature on a temporary basis. The

computer in the DMZ is NOT protected from hacker attacks.

Setting up your wireless router

37

To set up a DMZ for a computer:

•

Enter the last digits of the computer’s IP address in the

IP field

, click

Enable

, then

click

Apply Changes

for the change to take effect.

Using Dynamic DNS

The Dynamic DNS service lets you alias a dynamic IP address to a static host name in any of

the many domains DynDNS.org offers, allowing your network computers to be more easily

accessed from various locations on the Internet. DynDNS.org provides this service, for up to

five host names, free to the Internet community.

The Dynamic DNSSM service is ideal for a home Web site, file server, or to make it easy to

access your home PC and stored files while you’re at work. Using the service can ensure that

your host name always points to your IP address, no matter how often your ISP changes it.

When your IP address changes, your friends and associates can always locate you by visiting

yourname.dyndns.org instead.

To register free for your Dynamic DNS host name,

visit http://www.dyndns.org

.

Setting up your router’s Dynamic DNS Update Client

You must register with DynDNS.org’s free update service before using this feature. Once you

have your registration, follow the directions below.

To set up your router’s Dynamic DNS Update Client:

1

Select

DynDNS

as the

DDNS Service

.

2

Enter your DynDNS.org user name in the

User Name

field.

3

Enter your DynDNS.org password in the

Password

field.

4

Enter the DynDNS.org domain name you set up with DynDNS.org in the

Domain

Name

field.

5

Click

Update Dynamic DNS

to update your IP address.

Whenever your IP address assigned by your ISP changes, your router will automatically

update DynDNS.org’s servers with your new IP address. You can also do this manually by

clicking

Update Dynamic DNS

.

38

Setting up your wireless router

WAN ping blocking

Computer hackers use what is known as

pinging

to find potential victims on the Internet. By

pinging a specific IP address and receiving a response from the IP address, a hacker can

determine that something of interest might be there. Your router can be set up so it will not

respond to an ICMP ping from the outside. This heightens the level of security of your router.

To turn off the ping response

•

Open the

Firewall > WAN Ping Blocking

page and select

Block ICMP Ping

, then click

Apply Changes

. Your router will not respond to an ICMP ping.

Utilities tab

This screen lets you manage different parameters of your router and perform certain

administrative functions.

Setting up your wireless router

39

Restarting your router

Sometimes it may be necessary to restart or reboot your router if it begins working

improperly. Restarting or rebooting your router will NOT delete any of your configuration

settings.

To restart your router to restore normal operation:

1

Under the

Utilities

heading on the left menu, click

Restart Router

. The

Restart

Router

page opens.

2

Click the

Restart Router

button. The following message appears.

3

Click

OK

. The following message appears.

4

Click

OK

. Restarting your router can take up to 60 seconds. It is important not to turn

off the power to your router during the restart.

A 60-second countdown will appear on the screen. When the countdown reaches zero,

your router will be restarted. Your router’s home page should appear automatically. If

not, type your router’s address (default = 192.168.2.1) into the navigation bar of your

browser.

40

Setting up your wireless router

Restoring factory default settings

Using this option will restore all of the settings in your router to the factory (default) settings.

It is recommended that you back up your settings before you restore all of the defaults.

To restore factory default settings:

1

Under the

Utilities

heading on the left menu, click

Restore Defaults

. The following

warning will appear.

2

Click

OK

. The following message appears.

3

Click

OK

. Restoring the defaults includes restarting your router. Restarting your router

can take up to 60 seconds. It is important not to turn off the power to your router

during the restart.

A 60-second countdown will appear on the screen. When the countdown reaches zero,

your router will be restarted. Your router’s home page should appear automatically. If

not, type your router’s address (default = 192.168.2.1) into the navigation bar of your

browser.

Saving a current configuration

You can save your current configuration by using this feature. Saving your configuration will

allow you to restore it later if your settings are lost or changed. It is recommended that you

back up your current configuration before performing a firmware update.

To save a current configuration:

1

Under the

Utilities

heading on the left menu, click

Save/Backup Settings

. The

Save/Backup Settings

page opens.

2

Click

Save

. The

File Download

window opens.

3

Click

Save

. A window will open that lets you select the location where you want to

save the configuration file.