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Using the Web-Based Advanced User Interface
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Securing your Wi-Fi
®
Network
Here are a few different ways you can maximize the security of
your wireless network and protect your data from prying eyes and
ears. This section is intended for the home, home office, and small
office user. At the time of this manual’s publication, there are three
encryption methods available.
Name
64-bit Wired
Equivalent
Privacy
128-bit Wired
Equivalent
Privacy
Wi-Fi Protected
Access-TKIP
With Protected
Access
Acronym
64-bit WEP
128-bit WEP
WPA-TKIP
WPA-AES
Security
Good
Better
Best
Best
Features
Static keys
Static keys
Dynamic key
encryption
and mutual
authentication.
Dynamic key
encryption
and mutual
authentication.
Encryption
keys based
on RC4
algorithm
(typically
40-bit keys)
More secure
than 64-bit
WEP using a
key length of
104 bits plus
24 additional
bits of system
generated
data.
TKIP (temporal
key integrity
protocol)
added so
that keys are
rotated and
encryption is
strengthened.
AES (Advanced
Encryption
Standard) does
not cause any
throughput
loss.
WEP (Wired Equivalent Privacy)
WEP (Wired Equivalent Privacy) is a common protocol that adds
security to all Wi-Fi-compliant wireless products. WEP was designed
to give wireless networks the equivalent level of privacy protection as
a comparable wired network.
64-Bit WEP
64-bit WEP was first introduced with 64-bit encryption, which
includes a key length of 40 bits plus 24 additional bits of
system-generated data (64 bits total). Some hardware manufacturers
refer to 64-bit as 40-bit encryption. Shortly after the technology was
introduced, researchers found that 64-bit encryption was too easy
to decode.
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Using the Web-Based Advanced User Interface
128-Bit WEP
As a result of 64-bit WEP’s potential security weaknesses, a more
secure method of 128-bit encryption was developed. 128-bit
encryption includes a key length of 104 bits plus 24 additional bits of
system-generated data (128 bits total). Some hardware manufacturers
refer to 128-bit as 104-bit encryption.
Most of the new wireless equipment in the market today supports
both 64-bit and 128-bit WEP encryption, but you might have older
equipment that only supports 64-bit WEP. All Belkin wireless products
will support both 64-bit and 128-bit WEP.
Encryption Keys
After selecting either the 64-bit or 128-bit WEP encryption mode, it is
critical that you generate an encryption key. If the encryption key is
not consistent throughout the entire wireless network, your wireless
networking devices will be unable to communicate with one another
on your network and you will not be able to successfully communicate
within your network.
You can enter your key by typing in the hex key manually, or you can
type in a passphrase in the “Passphrase” field and click “Generate”
to create a key. A hex (hexadecimal) key is a mixture of numbers and
letters from A–F and 0–9. For 64-bit WEP, you need to enter 10 hex
keys. For 128-bit WEP, you need to enter 26 hex keys.
For instance:
AF 0F 4B C3 D4 = 64-bit WEP key
C3 03 0F AF 0F 4B B2 C3 D4 4B C3 D4 E7 = 128-bit WEP key
The WEP passphrase is NOT the same as a WEP key. Your card uses
this passphrase to generate your WEP keys, but different hardware
manufacturers might have different methods on generating the keys.
If you have multiple vendors’ equipments in your network, the easiest
thing to do is to use the hex WEP key from your Router or access
point and enter it manually into the hex WEP key table in your card’s
configuration screen.
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Using the Web-Based Advanced User Interface
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WPA (Wi-Fi Protected Access)
WPA (Wi-Fi Protected Access) is a new Wi-Fi standard that was
designed to improve upon the security features of WEP. To use WPA
security, the drivers and software of your wireless equipment must
be upgraded to support WPA. These updates will be found on the
wireless vendors website. There are two types of WPA security, WPA-
PSK (no server) and WPA (with radius server).
WPA-PSK (no server)
uses what is known as a
Pre-Shared key as the Network key. A Network key is basically a
password that is between 8 and 63 characters long. It can be a
combination of letters, numbers, or characters. Each client uses the
same Network key to access the network. Typically, this is the mode
that will be used in a home environment.
WPA (with radius server)
is a system where a radius server
distributes the Network key to the clients automatically. This is
typically found in a business environment.
For a list of Belkin wireless products that support WPA, please visit
our website at
www.belkin.com/networking.
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Sharing the Same Network Keys
Most Wi-Fi products ship with security turned off. So once you have
your network working, you need to activate WEP or WPA and make
sure your wireless networking devices are sharing the same
Network key.
The Wireless G Desktop Network Card cannot access the network
because it is using a different Network key than the Network key that
is configured on the Wireless G Router.
Wireless G Router
Wireless G Notebook
Network Card
Wireless G Desktop
Network Card
Wireless G Desktop
Network Card
Network key=
WRONG Password
Network key=
MyPassword
Network key=
MyPassword
Network key=
MyPassword
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Using the Web-Based Advanced User Interface
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Using a Hexadecimal Key
A hexadecimal key is a mixture of numbers and letters from A–F and
0–9. 64-bit keys are five two-digit numbers. 128-bit keys are 13
two-digit numbers.
For instance:
AF 0F 4B C3 D4 = 64-bit key
C3 03 0F AF 0F 4B B2 C3 D4 4B C3 D4 E7 = 128-bit key
In the boxes below, make up your key by writing in two characters
between A–F and 0–9 in each box. You will use this key to program
the encryption settings on your Router and your wireless computers.
Note to Mac users:
Original Apple AirPort
®
products support 64-
bit encryption only. Apple AirPort 2 products can support 64-bit or
128-bit encryption. Please check your product to see which version
you are using. If you cannot configure your network with 128-bit
encryption, try 64-bit encryption.
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