User's Manual

Chapter 3: Basic Checkout
Configuring The Murata 802.11b/g Radio
Warrington Hand-Held Computer User Manual 27
the original WEP encryption but ‘wraps’ additional code at the beginning and end to
encapsulate and modify it, encrypting each data packet with a unique encryption key.
• Authentication: 802.11 supports four subtypes of network authentication services:
Open, Shared, WPA, and WPA-PSK. Under Open authentication, any wireless station
can request authentication. The station that needs to authenticate with another wire-
less station sends an authentication management frame that contains the identity of
the sending station. The receiving station then sends back a frame that indicates
whether it recognizes the identity of the sending station.
Under Shared authentication, each wireless station is assumed to have received a se-
cret shared key over a secure channel that is independent from the 802.11 wireless
network communications channel.
Under WPA and WPA-PSK authentication, the use of 802.1x authentication is required.
For wireless networks without a Remote Authentication Dial-In User Service (RADI-
US) infrastructure, WPA supports the use of a preshared key. For wireless networks
with a RADIUS infrastructure, Extensible Authentication Protocol (EAP) and RADI-
US is supported.
• Network Key: This text box is used to specify a 5 or 13 ASCII character sequence or
an equivalent 10 or 26 Hexadecimal digit sequence that matches the active WEP key
on the access point.
• To assign a Network key, highlight The key is provided automatically, and uncheck
the checkbox to disable this option
Figure 3.5 Accessing Network Key and Key Index
• Key Index: This field is used to identify the WEP key.
Enter a value from 1 to 4.
Preliminary Draft