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AT-WCU200G User’s Guide
37
Under 802.11, a wireless station can be configured with up to four keys
(the key index values are 0, 1, 2, and 3). When an access point or a
wireless station transmits an encrypted message using a key that is
stored in a specific key index, the transmitted message indicates the key
index that was used to encrypt the message body. The receiving access
point or wireless station can then retrieve the key that is stored at the
key index and use it to decode the encrypted message body.
TKIP
The Temporal Key Integrity Protocol, pronounced tee-kip, is part of the
IEEE 802.11i encryption standard for wireless LANs. TKIP is the next
generation of WEP, the Wired Equivalency Protocol, which is used to
secure 802.11 wireless LANs. TKIP provides per-packet key mixing, a
message integrity check and a re-keying mechanism.
Configuring a WEP Wireless Network
Select the Wireless Networks tab in the Wireless Network Connection
Properties and highlight the appropriate wireless network in the
Available Networks window. Select Configure and then select in
Authentication.
When configuring WEP you need to decided between an Open or
Shared Authentication. As described in the WEP Open and Shared
Authentication when choosing an Open Authentication your system is
open to attack by outside forces for this reason when implementing
WEP it is recommended to use a Shared Authentication. However it is
recommended to use WPA or WPA-PSK for stronger security
implementation of your wireless network.
When selecting a WEP shared Authentication a five or thirteen digit key
is required as explained in the WEP section, see WEP
on page 36.
For non-WPA APs implementing an 802.1x security scheme, select Open
or Shared Authentication and WEP Data Encryption. Then select the
Authentication tab and Enable IEEE 802.1x authentication with the
appropriate properties.
Configure WPA Select the Wireless Networks tab in the Wireless Network Connection
Properties and highlight the appropriate wireless network in the
Available Networks window. Select Configure and then select in
Authentication.