How to Limit Internet Access Through a Router

By Tammy Clevenger

Wireless routers for home and corporate networks are widely utilized, so securing the wireless router is important to keep unauthorized users off the wireless network. To limit Internet access through a wireless router, set a Wireless Equivalent Privacy (WEP) key on the router. Each computer attempting to connect to the Internet through the router will be required to have this encrypted string stored in the wireless network profile on their computer. A WEP key is an encrypted password that is generated and stored on the router.

Configure the WEP Key on a Netgear Router

Step 1

Open a Web browser and enter the IP address for the Netgear administration interface. On Netgear routers normally "http://192.168.0.1" or "http://192.168.1.1" will be the IP address. If neither of these IP addresses opens the Netgear administrative interface, consult the manual or support website for the router's make and model number. The IP address will be listed in one or both of these sources.

Step 2

Enter the administrative user ID and password, and then click "OK."

Step 3

Click "Wireless Settings" in the left selection pane.

Step 4

Type a network name into the "Wireless Network" input box.

Step 5

Select the "WPA-PSK [TKIP] + WPA2-PSK [AES]" security option. The PassPhrase Entry box will appear.

Step 6

Type a passphrase into the "PassPhrase" input box and click "Generate." Several encrypted keys will be generated from the passphrase and listed in the boxes below.

Step 7

Click the radio button in front of the desired primary key. This will be the key required to access the Internet or local area network through the router. Normally, the first key is selected.

Step 8

Write down the encrypted key. This key will be required by each computer to access the network.

Step 9

Click "Apply." Close the administration interface. The WEP key has now been set for the network.

Configure the WEP Key on a Linksys Router

Step 1

Open a Web browser and enter the IP address for the Linksys administrative interface. This IP address "http://192.168.1.1" usually works. If this IP address does not work, check the user manual for the router, or check the support website. The Password dialog box will appear when connected to the interface.

Step 2

Type the administrative user ID and password. Click "OK."

Step 3

Click the "Wireless" tab and then click "Wireless Security."

Step 4

Click the "Security Mode" drop-down list and select "WEP."

Step 5

Select "1" for the "Default Transmit Key."

Step 6

Click the "WEP Encryption" drop-down box and select "128 Bit Hex Digits."

Step 7

Type a passphrase into the "Passphrase" input box and click the "Generate" button. The WEP keys will be generated and listed below the Passphrase box. The first WEP key will be the one required by other computers to connect to the network.

Step 8

Write down the encrypted key listed in the first box.

Step 9

Click "Save Settings" to save the keys and secure the network. Close the browser window.