Wireless
Modifying Virtual Access Point Settings
Cisco AP541N Dual-band Single-radio Access Point Quick Start Guide
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If you use Static WEP, the following rules apply:
•
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 access point
in order to de-code AP-to-station data transmissions.
•
The access point must have all keys used by clients for station-to-AP
transmit so that it can de-code the station transmissions.
•
The same key must occupy the same slot on all nodes (access point and
clients). For example if the access point defines
abc123
key as WEP key 3,
then the client stations must define that same string as WEP key 3.
•
Client stations can use different keys to transmit data to the access point.
(Or they can all use the same key, but this is less secure because it means
one station can decrypt the data being sent by another.)
•
On some wireless client software, you can configure multiple WEP keys and
define a client station “transfer key index”, and then set the stations to
encrypt the data they transmit using different keys. This ensures that
neighboring access point
s
cannot decode each other’s transmissions.
•
You cannot mix 64-bit and 128-bit WEP keys between the access point and
its client stations.
Table 12
describes the WEP fields.
Table 12 WEP Field Descriptions
Field
Description
Transfer Key
Index
Select a key index from the drop-down menu. Key indexes 1
through 4 are available. The default is1.
The transfer key index indicates which WEP key the access
point will use to encrypt the data it transmits.
Key Length
Specify the length of the key by clicking one of the radio
buttons:
•
64 bits
•
128 bits
