Overview Of Wep Parameters; Key Size - NETGEAR WGX102 Reference Manual

Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624
The station connects to the network.
5.
If the decrypted text does not match the original challenge text (i.e., the access point and station do
not share the same WEP Key), then the access point will refuse to authenticate the station and the
station will be unable to communicate with either the 802.11 network or Ethernet network.
This process is illustrated in below.
802.11b Authentication
Shared Key Steps
1) Authentication
request sent to AP
Client
3) Client encrypts
attempting
challenge text and
to connect
sends it back to AP
5) Client connects to network
Figure 9-5: Shared key authentication

Overview of WEP Parameters

Before enabling WEP on an 802.11 network, you must first consider what type of encryption you
require and the key size you want to use. Typically, there are three WEP Encryption options
available for 802.11 products:
1. Do Not Use WEP: The 802.11 network does not encrypt data. For authentication purposes, the
network uses Open System Authentication.
2. Use WEP for Encryption: A transmitting 802.11 device encrypts the data portion of every
packet it sends using a configured WEP Key. The receiving device decrypts the data using the
same WEP Key. For authentication purposes, the wireless network uses Open System
Authentication.
Wireless Networking Basics
2) AP sends challenge text
4) AP decrypts, and if correct,
authenticates client
M-10153-01
Access Point
MODEL
IN TER N ET W LA N LO CA L FVM318
ProSafeWirelessVPN Security Firewall
Cable/DSL LNK 100
PWR TEST
ACT Enable LNK/ACT
1 2 3 4 5 6 7 8
DLS modem
Cable or
D-5