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It should be noted
that WPA is an interim standard that will be replaced with the IEEE’s 802.11i standard upon
its completion.
WPA2
WPA2 stands for
W
i-Fi
P
rotected
A
ccess
2
, the follow on security method to WPA for wireless networks that
provides stronger data protection and network access control. It provides enterprise and consumer Wi-Fi
users with a high level of assurance that only authorized users can access their wireless networks. Based on
the IEEE 802.11i standard, WPA2 provides government grade security by implementing the National Institute
of Standards and Technology (NIST) FIPS 140-2 compliant AES encryption algorithm and 802.1x-based
authentication.
[Adapted from
Wi-Fi.org
]
There are two versions of WPA2: WPA2-Personal, and
WPA2-Enterprise. WPA2-Personal protects unauthorized network access by utilizing a set-up password.
WPA2-Enterprise verifies network users through a server. WPA2 is backward compatible with WPA.
RADIUS
RADIUS stands for
R
emote
A
ccess
Di
al-Up
U
ser
S
ervice. It is a standard technology used by many major corporations
to protect access to wireless networks. RADIUS is a user name and password scheme that enables only approved users
to access the network; it does not affect or encrypt data. The first time a user access to the network, he must input name
and password and submit it over the network to the RADIUS server. The server then verifies that the individual has an
account and, if so, ensures that the person uses the correct password before he can get on the network.
WMM
WMM stands for
W
i-Fi
M
ulti
m
edia. It is a standard created to define quality of service (QoS) in
Wi-Fi networks. It is a precursor to the upcoming IEEE 802.11e WLAN QoS draft standard, which is
meant to improve audio, video and voice applications transmitted over Wi-Fi. WMM adds prioritized
capabilities to Wi-Fi networks and optimizes their performance when multiple concurring
applications, each with different latency and throughput requirements, compete for network
resources.