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Page 26 / 80 Scroll up to view Page 21 - 25
Wireless Cable Voice Gateway Model CVG824G Reference Manual
2-4
Wireless Configuration
v1.0, November 2006
Understanding Wireless Security Options
Wireless data transmissions can be received well beyond your walls by anyone with a compatible
adapter. For this reason, use the security features of your wireless equipment. For more
information about wireless security, see the link
“Wireless Communications:” in Appendix B
.
Deploy the security features appropriate to your needs.
There are several ways you can enhance the security of your wireless network:
•
MAC access list (Wireless Card Access).
You can restrict access to only trusted PCs so that
unknown PCs cannot wirelessly connect to the gateway. This adds an obstacle against
unwanted access to your network, but the data broadcast over the wireless link is fully
exposed.
•
Use WEP.
Wired Equivalent Privacy (WEP) data encryption provides data security. WEP
Shared Key authentication and WEP data encryption will block all but the most determined
eavesdropper.
•
Use WPA, WPA-PSK or WPA2-PSK.
Wi-Fi Protected Access (WPA) data encryption
provides data security. The very strong authentication along with dynamic per frame rekeying
of WPA makes it virtually impossible to compromise.
•
Turn Off the Broadcast of the Wireless Network Name (SSID).
If you disable broadcast of
the SSID, only devices that have the correct SSID can connect. This nullifies the wireless
network “discovery” feature of some products such as Windows XP, but the data is still fully
exposed to a determined snoop using specialized test equipment like wireless sniffers.
Configuring Wireless Settings
To configure the wireless settings:
1.
Connect a computer to the wireless voice gateway using an Ethernet or USB cable as
described in
“Connecting the Wireless Voice Gateway” on page 1-5
.
2.
Enter
in the address field of your Internet browser.
Page 27 / 80
Wireless Cable Voice Gateway Model CVG824G Reference Manual
Wireless Configuration
2-5
v1.0, November 2006
3.
Under Setup on the main menu, select Wireless Settings.
4.
Configure or confirm the Wireless Settings page options described below:
•
Wireless Network Name (SSID)
: Enter an SSID up to 32 characters. The characters are
case-sensitive. The default is NETGEAR.
•
Channel
: Select the channel for your wireless LAN. The default is channel 6. Only
change the channel if there is interference (shown by lost connections and/or slow data
transfers).
•
Enable Wireless Access Point:
Normally the Wireless Access Point is enabled so that
computers on the network can access the Internet. The default is enabled.
•
Allow Broadcast of Name (SSID):
If enabled, the gateway broadcasts the SSID to all
wireless stations. Stations with no SSID (or a “null” value) can use the SSID to connect to
this access point. The default is enabled.
•
Wireless Card Access List:
You can use an Access List to increase security for the
wireless network. The Access List includes the MAC addresses of PCs that are allowed to
connect. The default is disabled. If you enable this feature, see
“Configuring Your
Wireless Card Access List” on page 2-11
.
Figure 2-1
Page 28 / 80
Wireless Cable Voice Gateway Model CVG824G Reference Manual
2-6
Wireless Configuration
v1.0, November 2006
•
Security Options:
Wireless security is disabled by default. Configure wireless security by
selecting one of the following options:
“WEP (Wired Equivalent Privacy)” on page 2-7
,
“WPA-PSK (WiFi Protected Access Pre-Shared Key)” on page 2-8
, or
“WPA2-PSK (WiFi
Protected Access 2 Pre-Shared Keys)” on page 2-10
.
5.
Click
Apply
to save your wireless settings.
Setting up Wireless Security
To configure the wireless security settings:
1.
Type http://192/168/0/1 in the address field of your browser window.
2.
When prompted, enter your User Name and Password. The management user interface will
display.
3.
Under the Setup menu, select the Wireless Settings link and scroll down to Security Options.
The Security Options screen will display.
4.
Select the Security Option you want to use. (The available security options are explained in the
following sections.
5.
Click
Apply
to save your settings.
Figure 2-2
Page 29 / 80
Wireless Cable Voice Gateway Model CVG824G Reference Manual
Wireless Configuration
2-7
v1.0, November 2006
WEP (Wired Equivalent Privacy)
To configure WEP data encryption:
1.
From the Wireless Settings page, choose WEP (Wired Equivalent Privacy) 64-bit encryption
or WEP (Wired Equivalent Privacy) 128-bit encryption.
2.
Choose the authentication “Open System or Shared Key,” or Shared Key.”
3.
If you use encryption keys, enter them. These values must be identical on all computers in
your network. There are two ways to enter the keys:
•
Passphrase
: Enter a word or group of printable characters in the Passphrase box and click
the Generate button. The four key boxes will be automatically populated with key values.
•
Manual
: Enter ten hexadecimal digits (any combination of 0-9, a-f, or A-F)
Select which of the four keys will be the default.
See the link to “Wireless Communications” in
Appendix B, “Related Documents”
for a full
explanation of each of these options, as defined by the IEEE 802.11 wireless communication
standard.
4.
Click
Apply
to save your settings.
Figure 2-3
Page 30 / 80
Wireless Cable Voice Gateway Model CVG824G Reference Manual
2-8
Wireless Configuration
v1.0, November 2006
WPA-PSK (WiFi Protected Access Pre-Shared Key)
Not all wireless adapters support WPA-PSK. 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. Nevertheless, the wireless adapter hardware and driver must also support WPA.
Consult the product document for your wireless adapter and WPA client software for instructions
on configuring WPA settings.
To configure WPA-PSK:
1.
From the Wireless Settings page, select WPA-PSK.
2.
In the Passphrase Key field under Security Encryption (WPA-PSK), enter a word or group of
printable characters and the Key Lifetime.
The Passphrase must be 8 to 63 characters in length. The 256 Bit key used for encryption is
generated from this passphrase.
3.
Click
Apply
to save your settings.
Note:
If you use a wireless computer to configure WEP settings, you will be disconnected
when you click Apply. Reconfigure your wireless computer to match the new
settings, or access the wireless voice gateway from a wired computer to make
further changes.
Figure 2-4

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