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Page 31 / 71 Scroll up to view Page 26 - 30
25
Chapter 5: Configuring the Wireless-G Cable Gateway
The Wireless Tab
Wireless-G Cable Gateway
WPA-Personal. To use WPA-Personal, select
WPA-Personal
from the
Security Mode
drop-down menu. Select a
method of encryption. Then enter a Passphrase and a Key Renewal period.
•
Encryption. WPA offers you two encryption methods, TKIP and AES, with dynamic encryption keys. Select the
type of algorithm you want to use,
TKIP
or
AES
.
•
Passphrase. Enter a Passphrase (also called a WPA Shared Key) of 8-32 characters.
•
Key Renewal. Enter a Key Renewal timeout period, which instructs the Gateway how often it should change
the encryption keys.
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.
WPA2-Personal. To use WPA2-Personal, select
WPA2-Personal
from the
Security Mode
drop-down menu. Select
a method of encryption. Then enter a Passphrase and a Key Renewal period.
•
Encryption. Select the encryption method you want to use,
AES
or
TKIP + AES
.
•
Passphrase. Enter a Passphrase (also called a WPA Shared Key) of 8-32 characters.
•
Key Renewal. Enter a Key Renewal timeout period, which instructs the Gateway how often it should change
the encryption keys.
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 5-8: WPA-Personal
Figure 5-9: WPA2-Personal
wpa
(wi-fi protected access: a wireless security
protocol using TKIP (Temporal Key Integrity Protocol)
encryption, which can be used in conjunction with a
RADIUS server.
Page 32 / 71
26
Chapter 5: Configuring the Wireless-G Cable Gateway
The Wireless Tab
Wireless-G Cable Gateway
WPA-Enterprise. This option features WPA used in coordination with a RADIUS server. (This should only be used
when a RADIUS server is connected to the Gateway.) To use WPA-Enterprise, select
WPA-Enterprise
from the
Security Mode
drop-down menu. Select a method of encryption and your RADIUS settings. Then enter a Shared
Secret key and a Key Renewal period.
•
Encryption. WPA offers you two encryption methods, TKIP and AES, with dynamic encryption keys. Select the
type of algorithm you want to use,
TKIP
or
AES
.
•
RADIUS Server Address. Enter the RADIUS server’s IP address.
•
RADIUS Port. Enter the port number used by the RADIUS server.
•
Shared Secret. Enter the Shared Secret key used by the Gateway and RADIUS server.
•
Key Renewal. Enter a Key Renewal timeout period, which instructs the Gateway how often it should change
the encryption keys.
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.
WPA2-Enterprise. This option features WPA2 used in coordination with a RADIUS server. (This should only be used
when a RADIUS server is connected to the Gateway.) To use WPA2-Enterprise, select
WPA2-Enterprise
from the
Security Mode
drop-down menu. Select a method of encryption and your RADIUS settings. Then enter a Shared
Secret key and a Key Renewal period.
•
Encryption. Select the encryption method you want to use,
AES
or
TKIP + AES
.
•
RADIUS Server Address. Enter the RADIUS server’s IP address.
•
RADIUS Port. Enter the port number used by the RADIUS server.
•
Shared Secret. Enter the Shared Secret key used by the Gateway and RADIUS server.
•
Key Renewal. Enter a Key Renewal timeout period, which instructs the Gateway how often it should change
the encryption keys.
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 5-10: WPA-Enterprise
Figure 5-11: WPA2-Enterprise
radius
(remote authentication dial-in user service): a
protocol that uses an authentication server to control
network access.
server:
any computer whose function in a network is to
provide user access to files, printing, communications, and
other services.
Page 33 / 71
27
Chapter 5: Configuring the Wireless-G Cable Gateway
The Wireless Tab
Wireless-G Cable Gateway
RADIUS. This option features WEP used in coordination with a RADIUS server. (This should only be used when a
RADIUS server is connected to the Gateway.) First, enter your RADIUS settings. Select a level of WEP encryption,
64-Bit Encryption
or
128-Bit Encryption
. Then select a Default Key (choose which Key to use). Then either
generate a WEP key using a Passphrase or enter the WEP key manually.
•
RADIUS Server Address. Enter the RADIUS server’s IP address.
•
RADIUS Port. Enter the port number used by the RADIUS server.
•
Shared Secret. Enter the Shared Secret key used by the Gateway and RADIUS server.
•
Wireless Encryption Level. An acronym for Wired Equivalent Privacy, WEP is an encryption method used to
protect your wireless data communications. WEP uses 64-bit or 128-bit keys to provide access control to your
network and encryption security for every data transmission. To decode data transmissions, all devices in a
network must use an identical WEP key. Higher encryption levels offer higher levels of security, but due to the
complexity of the encryption, they may decrease network performance. To enable WEP, select
64-Bit
Encryption
or
128-
B
it Encryption
.
•
Default Key. Select which WEP key (1-4) will be used when the Gateway sends data. Make sure that the
receiving device (wireless client) is using the same key.
•
Passphrase for Keys. Instead of manually entering WEP keys, you can enter a passphrase. This passphrase is
used to generate one or more WEP keys. It is case-sensitive and should not be longer than 32 alphanumeric
characters. (This Passphrase function is compatible with Linksys wireless products only and cannot be used
with Windows XP Zero Configuration. If you want to communicate with non-Linksys wireless products or
Windows XP Zero Configuration, make a note of the WEP key you want to use, and enter it manually in the
wireless client.) After you enter the Passphrase, click the
Generate Keys
button to create WEP keys.
•
Wireless WEP Keys #1-4. WEP keys enable you to create an encryption scheme for wireless network
transmissions. If you are not using a Passphrase, then manually enter a set of values. (Do not leave a key field
blank.) If you are using 64-bit WEP encryption, the key must be exactly 10 hexadecimal characters in length.
If you are using 128-bit WEP encryption, the key must be exactly 26 hexadecimal characters in length. Valid
hexadecimal characters are “0”-“9” and “A”-“F”.
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.
wep
(wired equivalent privacy): a method of
encrypting network data transmitted on a
wireless network for greater security.
Figure 5-12: RADIUS
Page 34 / 71
28
Chapter 5: Configuring the Wireless-G Cable Gateway
The Wireless Tab
Wireless-G Cable Gateway
WEP. WEP is a basic encryption method, which is not as secure as WPA. To use WEP, select
WEP
from the
Security
Mode
drop-down menu. Select a level of WEP encryption,
64-Bit Encryption
or
128-Bit Encryption
. Then select
a Default Key (choose which Key to use). Then either generate a WEP key using a Passphrase or enter the WEP
key manually.
•
Wireless Encryption Level. An acronym for Wired Equivalent Privacy, WEP is an encryption method used to
protect your wireless data communications. WEP uses 64-bit or 128-bit keys to provide access control to your
network and encryption security for every data transmission. To decode data transmissions, all devices in a
network must use an identical WEP key. Higher encryption levels offer higher levels of security, but due to the
complexity of the encryption, they may decrease network performance. To enable WEP, select
64-Bit
Encryption
or
128-
B
it Encryption
.
•
Default Key. Select which WEP key (1-4) will be used when the Gateway sends data. Make sure that the
receiving device (wireless client) is using the same key.
•
Passphrase for Keys. Instead of manually entering WEP keys, you can enter a passphrase. This passphrase is
used to generate one or more WEP keys. It is case-sensitive and should not be longer than 32 alphanumeric
characters. (This Passphrase function is compatible with Linksys wireless products only and cannot be used
with Windows XP Zero Configuration. If you want to communicate with non-Linksys wireless products or
Windows XP Zero Configuration, make a note of the WEP key you want to use, and enter it manually in the
wireless client.) After you enter the Passphrase, click the
Generate Keys
button to create WEP keys.
•
Wireless WEP Keys #1-4. WEP keys enable you to create an encryption scheme for wireless network
transmissions. If you are not using a Passphrase, then manually enter a set of values. (Do not leave a key field
blank.) If you are using 64-bit WEP encryption, the key must be exactly 10 hexadecimal characters in length.
If you are using 128-bit WEP encryption, the key must be exactly 26 hexadecimal characters in length. Valid
hexadecimal characters are “0”-“9” and “A”-“F”.
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 5-13: WEP
Page 35 / 71
29
Chapter 5: Configuring the Wireless-G Cable Gateway
The Wireless Tab
Wireless-G Cable Gateway
Wireless Network Access Tab
Wireless Network Access. If this function is enabled, only the computers on the list will be allowed access to the
wireless network. To add a computer to the network, click
Enable
to enable the function. Then, enter the MAC
addresses in the fields provided, You can also click the
Select MAC Address From Networked Computers
button.
Select the MAC Address(es) you want from the list, and click the
Add
button. Click the
Refresh
button if you want
to refresh the on-screen information. Click the
Close
button to return to the previous screen.
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 5-14: Wireless Network Access
Figure 5-15: MAC Address Access List
mac address:
the unique address that a manufacturer
assigns to each networking device.

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