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authenticate the user and then returns an accept or reject
message back to the access point. Assuming an accept
was received, the access point changes the client's state
to authorized and normal traffic can now take place.
The authentication server may use the remote
authentication dial-in user service (RADIUS), although
802.1X does not specify it.
WPS is short for Wi-Fi Protected Setup, and is introduced
and developed by the Wi-Fi.
Alliance (http://www.wi-fi.org/) helps standardize and
simplify ways of setting up and configuring security on a
wireless network. Traditionally, users would have to
manually create a wireless network name (SSID), and
then manually enter a creative, yet predictable security key
on both the access point and the client to prevent
unwanted access to their wireless network. This whole
process requires the users to have the background
knowledge of the Wi-Fi devices and the ability to make the
necessary configuration changes. WPS was introduced
to relieve and remove all of the guess work of securing a
wireless network by typing a short PIN (numeric code) or
pushing a button (push-button configuration, or PBC).
On a new wireless network, WPS automatically configures
a wireless network with a network name (SSID) and strong
WPA data encryption and authentication. Wi-Fi Protected
Setup is designed to support various Wi-Fi certified 802.11
products ranging from access points, wireless adapters,
Wi-Fi phones, and other consumer electronics devices.
Advantages of WPS
WPS automatically configures the network name (SSID)
and WPA security key for the access point and the WPS
enabled client devices on a network. You do not need to
know the SSID and security keys or passphrases when
connecting WPS-enabled devices.
No one can guess or figure out your security keys or
