Shared Key Authentication - NETGEAR 108 MBPS WIRELESS WGT624 V3 Reference Manual

108 mbps wireless firewall router
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Reference Manual for the 108 Mbps Wireless Firewall Router WGT624 v3
The access point authenticates the station.
2.
The station associates with the access point and joins the network.
3.
This process is illustrated below.
Authentication Steps
1) Authentication request sent to AP
3) Client connects to network
Client
attempting
to connect
Figure 7-4: Open system authentication

Shared Key Authentication

The following steps occur when two devices use Shared Key Authentication:
The station sends an authentication request to the access point.
1.
The access point sends challenge text to the station.
2.
The station uses its configured 64-bit or 128-bit default key to encrypt the challenge text, and
3.
sends the encrypted text to the access point.
The access point decrypts the encrypted text using its configured WEP Key that corresponds
4.
to the station's default key. The access point compares the decrypted text with the original
challenge text. If the decrypted text matches the original challenge text, then the access point
and the station share the same WEP Key and the access point authenticates the station.
The station connects to the network.
5.
If the decrypted text does not match the original challenge text (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.
D-4
Open System
2) AP authenticates
202-10090-02 v 1.4, July 2005
Access Point (AP)
MODEL
FVM318
IN TER N ET
W LA N
LO CA L
Cable/DSL
ProSafeWirelessVPN Security Firewall
LNK
100
PWR
TEST
ACT
Enable
LNK/ACT
1
2
3
4
5
6
7
8
Cable or
DLS modem
Wireless Networking Basics

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