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Rules to Remember for Static WEP
■ All client stations must have the Wireless LAN (WLAN) security set to WEP and all
clients must have one of the WEP keys specified on the AP in order to de-crypt
AP-to-station data transmissions.
■ The AP must have all keys used by clients for station-to-AP transmit so that it can
de-crypt the station transmissions.
■ The same key most occupy the same slot on all nodes (AP and clients). For example if
the AP defines abc123 key as WEP key 3, then the client stations must define that same
string as WEP key 3.
■ On some wireless client software (like Funk Odyssey), you can configure multiple WEP
keys and define a client station transfer key index, then set the stations to encrypt the
data they transmit using different keys. This ensures that neighboring APs cannot
decrypt each other’s transmissions.
Authentication
Algorithm
The authentication algorithm defines the method used to determine whether
a client station is allowed to associate with an access point when static WEP
is the security mode.
Specify the authentication algorithm you want to use by choosing one of the
following from the list:
• Open System
• Shared Key
• Both
Open System authentication lets any client station associate with the access
point whether that client station has the correct WEP key or not. This
algorithm is also used in plain text, IEEE 802.1x, and WPA modes. When
the authentication algorithm is set to Open System, any client can associate
with the access point.
Note that just because a client station is allowed to associate does not ensure
it can exchange traffic with an access point. A station must have the correct
WEP key to be able to successfully access and decrypt data from an access
point, and to transmit readable data to the access point.
Shared Key authentication requires the client station to have the correct
WEP key in order to associate with the access point. When the authentication
algorithm is set to Shared Key, a station with an incorrect WEP key will not
be able to associate with the access point.
Both is the default. When the authentication algorithm is set to Both:
• Client stations configured to use WEP in shared key mode must have a
valid WEP key in order to associate with the access point.
• Client stations configured to use WEP as an open system (shared key mode
not enabled) will be able to associate with the access point even if they
do not have the correct WEP key.
Field Description