GIGABYTE GN-A11G - Manual (Page 25)

GN-A11G Wireless LAN Access Point
WPA If you have used Wi-Fi for a while, you may be familiar with
802.1X
Authentication Protocol, which allows users to authenticate the
wireless network via RASIUS server. 802.1X Authentication Protocol is an
option in standard Wi-Fi but a must for WPA. If a RADIUS server is
not avaiable in your environment, regardless of the needs of
802.1X, you can use WPA. As another option for RADIUS
server, WPA supports pre-shared key.
WPA-PSK As for the security of traditional WEP, it is very inconvenient to
change encrypted keys. Even you change encrypted keys any
time; you still can not select all APs and wireless LAN adapter
while changing encrypted keys.
Instead, rekeying is a tedious manual process and is completely
impractical for large organizations. After all, the instant you
rekey an
access point, none of the clients will be able to access
it until they are also rekeyed.
But with WPA, the rekeying of global encryption keys is required.
In the case of unicast traffic, the encryption key is changed after
every frame using Temporary Key Integrity Protocol (TKIP). This
protocol allows key changes to occur on a frame-by-frame basis
and to be automatically synchronized between the access point
and the wireless client. Global rekeying works by advertising the
new keys to wireless clients.
When you select WPA authentication type, a window for Radius setting will
display as followed. Please note IP configure shall be set as fixed IP address
and DHCP mode as “disabled” when WPA authentication type is selected.
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