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G245 WLAN Card
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Connect Information
Select the Connect Information by the “ Protocol ” down drop menu.
PEAP is another Cisco developed protocol. It encompasses EAP and provides the ability to seamlessly
roam between access points. This protocol should function like LEAP and be transparent with respect
to the RADIUS authentication protocol. More study of this protocol is necessary.
TLS is the next generation of SSL encryption. EAP uses TLS to create a secure tunnel through which
authentication and encryption keys can be passed. EAP-TLS requires server and client side
keys. Microsoft has implemented EAP-TLS authentication in the Windows XP operating system, with
a focus on the Microsoft Active Directory as the authentication engine.
Pre-shared Key
WPA and 802.11i provide for a Pre-Shared Key (PSK) as an alternative to 802.1X based key
establishment. A PSK is a 256 bit number or a passphrase 8 to 63 bytes long. Each station MAY have its
own PSK, tied to its MAC address. To date, vendors are only providing for one PSK for an ESS, just as
they do for WEP keying.
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