Wireless Cable Modem Gateway CGD24G User Manual

Wireless Configuration

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v1.1, May 2009

3.

In the Wireless Settings screen, depending on the encryption strength that you want, select one

of these options:

•

WEP (Wired Equivalent Privacy) 64-bit encryption

•

WEP (Wired Equivalent Privacy) 128-bit encryption

Settings for WEP encryption are shown in the following figure (which is the bottom part of the

Wireless Settings screen).

4.

Select the WEP security encryption from the Authentication drop-down list. Select

Open

System or

Shared Key

or

Shared Key

. The default is Open System or Shared Key.

5.

Enter the WEP encryption key information:

•

WEP PassPhrase

:

To use a passphrase to automatically generate the keys, enter a

passphrase and click

Generate

. Wireless stations must use the passphrase or keys to

access the gateway.

Figure 2-2

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Wireless Configuration

v1.1, May 2009

•

Key 1

through

Key 4

: You can manually enter the four data encryption keys. These values

must be identical on all computers and access points in your network. For 64-bit WEP,

enter 10 hexadecimal digits (any combination of 0–9 or A–F). For 128-bit WEP, enter

26 hexadecimal digits.

•

Select which of the four keys will be the default. Data transmissions are always encrypted

using the default key. The other keys can only be used to decrypt received data. The four

entries are disabled if WPA-PSK or WPA authentication is selected.

6.

Click

Apply

to save your settings.

Configuring WPA or WPA2 Wireless Security

To configure WPA in the gateway:

1.

Log in to the gateway using its default address of

or at whatever IP address

the unit is currently configured. Use the default user name of

admin

and default password of

password

, or the password you have set up.

2.

In the main menu, under Setup, select

Wireless Settings

.

3.

Select either one of the WPA settings:

•

WPA-PSK

. This setting provides the TKIP encryption type and a pre-shared key

passphrase.

•

WPA

. This setting provides the TKIP encryption type with authentication from a

RADIUS server.

•

WPA2-PSK

. This setting provides the AES encryption type and a pre-shared key

passphrase.

Note:

If you use a wireless computer to configure WEP settings, you will be

disconnected when you click

Apply

. Reconfigure your wireless adapter to match

the new settings or access the gateway from a wired computer to make any further

changes.

Note:

Not all wireless adapters support WPA. Furthermore, client software is required on

the client. Windows XP and Windows 2000 with Service Pack 3 or above do

include the client software that supports WPA. The wireless adapter hardware and

driver must also support WPA. Consult the product documentation for your

wireless adapter and WPA client software for instructions on configuring WPA

settings.

Wireless Cable Modem Gateway CGD24G User Manual

Wireless Configuration

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v1.1, May 2009

•

WPA2

. This setting provides the AES encryption type with authentication from a

RADIUS server.

The content that you see in the Wireless Settings screen depends on the WPA setting that you

select.

Figure 2-3

displays the WPA-PSK and WPA2_PSK settings.

Figure 2-4

displays the

WPA and WPA2 settings..

Figure 2-3

Figure 2-4

Wireless Cable Modem Gateway CGD24G User Manual

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Wireless Configuration

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4.

Depending on the WPA settings that you select, enter the required information:

•

For WPA-PSK or WPA2-PSK, enter the pre-shared key, which is a passphrase between

8 and 63 characters.

•

For WPA or WPA2, enter the settings for the RADIUS Server:

–

Primary Radius Server IP Address

. The IP address of the RADIUS server. The

default is 0.0.0.0.

–

Radius Port

. Port number of the RADIUS server. The default is 1812.

–

Shared Key

. This is shared between the wireless access point and the RADIUS server

while authenticating the supplicant.

5.

Click

Apply

to save your settings.

Using Push 'N' Connect (WPS) to Configure Your Wireless

Network and Security

If your wireless clients support Wi-Fi Protected Setup (WPS), you can use this feature to configure

the gateway’s SSID and security settings and, at the same time, connect the wireless client securely

and easily to the gateway. Look for the

symbol on your client device (computers that will

connect wirelessly to the gateway are clients). WPS uses the network name (SSID) that is

specified in the Wireless Settings screen and sets the wireless security settings to either WPA-PSK

or WPA2-PSK and then and broadcasts these settings to the wireless client.

Some considerations regarding WPS are:

•

WPS supports only WPA-PSK and WPA2-PSK wireless security. WEP security is not

supported by WPS.

•

Before you can add a WPS client, the Security Option in the Wireless Settings screen must be

set to

Disabled

,

WPA-PSK

, or

WPA2-PSK

. See

“Manually Configuring Your Wireless

Settings and Security” on page 2-3

.

Note:

NETGEAR’s Push 'N' Connect feature based on the Wi-Fi Protected Setup

(WPS) standard (for more information, see

). All other Wi-

Fi-certified and WPS-capable products should be compatible with NETGEAR

products that implement Push 'N' Connect.

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A WPS client can be added using the Push Button method or the PIN method.

•

Using the Push Button

. This is the preferred method. See the following section,

“Using a

WPS Button to Add a WPS Client

.

•

Entering a PIN

. For information about using the PIN method, see

“Using a PIN Entry to Add

a WPS Client” on page 2-12

.

Using a WPS Button to Add a WPS Client

Any wireless computer or wireless adapter that will connect to the gateway wirelessly is a client.

The client must support a WPS PIN, and must have a WPS configuration utility, such as the

NETGEAR Smart Wizard or Atheros Jumpstart.

Before you can add a WPS client, the Security Option in the Wireless Settings screen must be set

to

Disabled

,

WPA-PSK

, or

WPA2-PSK

. See

“Manually Configuring Your Wireless Settings and

Security” on page 2-3

.

To use the gateway WPS button to add a WPS client:

1.

Log in to the gateway using its default address of

or at whatever IP address

the unit is currently configured.

2.

In the main menu, under Setup, select

WPS Settings

. The Wi-Fi Protected Setup (WPS)

screen displays.

By default, the

Push Button

radio button is selected.

3.

Click

Add

.

•

The Wireless LED on the front of the gateway begins to blink.

•

The gateway tries to communicate with the client for 2 minutes.

4.

Go to the client wireless computer, and run a WPS configuration utility. Follow the utility’s

instructions to click a WPS button.

Figure 2-5