NDC comm NWH4020 Network Card User Manual


 
20
InstantWave
11-Mbps USB Wireless LAN Adapter
Disabled (default): Stations communicate with the access point without any
data encryption.
40-bit WEP: Stations communicate with the access point using 40-bit WEP
data encryption.
128-bit WEP: Stations communicate with the access point using 128-bit WEP
data encryption.
In order to decode data transmissions, all wireless stations on the network must use
the same key or keys.
WEP Key Generation
: There are two ways to generate a WEP key or keys.
The first is by entering text in the
Passphrase
box and then clicking
Generate
. For
40-bit WEP, four WEP keys will be generated: Key 1, Key 2, Key 3, and Key 4.
Using the
Default Key
control, select the key currently in use on the network. If you
do not select a key, key 1 will be selected. For 128-bit WEP, a single key will be
generated.
The other WEP key generation method is to click in the key input boxes and input
values directly from the keyboard in hexadecimal notation. If the key is not entered
correctly, the station will not be able to join the network. If WEP is enabled on the
AP, all stations must use the same WEP key to connect to it.
Authentication
— The
Authentication
control can be set to Unspecified (this is the
default setting), Open System, or Shared Key. The setting of this control is ignored
when WEP is disabled.
When 40-bit or 128-bit WEP is enabled, the setting of this control determines
whether or not the station’s requests to join the network will be WEP encrypted.
The Unspecified setting causes the station to try joining the network with both
encrypted and unencrypted requests. In Open System authentication mode, requests
are never encrypted. Shared Key means that the station’s requests to join the
network are always encrypted.
Troubleshooting
Should a problem be encountered that cannot be resolved using the
“Troubleshooting” section of this manual, click the
Troubleshooting
tab (
Figure
19
).