NETGEAR Double 108 Mbps Wireless PC Card WG511U - Manual (Page 60)

User’s Manual for the NETGEAR Double 108 Mbps Wireless PC Card 32-bit CardBus WG511U
B-8 Wireless Networking Basics
August 2004
Figure B-2: 802.11 open system authentication
The following steps occur when two devices use Open System Authentication:
1. The station sends an authentication request to the access point.
2. The access point authenticates the station.
3. The station associates with the access point and joins the network.
The WEP Shared Key authentication process is illustrated in below.
Figure B-3: 802.11 shared key authentication
The following steps occur when two devices use Shared Key Authentication:
1. The station sends an authentication request to the access point.
I N TER N ET LO C A L
ACT 1 2 3 4 5 6 7 8
LNK LNK/ACT 100 Cable/DSL ProSafe Wireless VPN Security Firewall MODEL FVM318
PWR TEST
W LA N
Enable
Access Point (AP) 1) Authentication request sent to AP
2) AP authenticates
3) Client connects to network
802.11 Authentication
Open System Steps
Cable or
DLS modem Client
attempting
to connect
I N TER N ET LO C A L
ACT 1 2 3 4 5 6 7 8
LNK LNK/ACT 100 Cable/DSL ProSafe Wireless VPN Security Firewall MODEL FVM318
PWR TEST
W LA N
Enable
Access Point (AP)
1) Authentication
request sent to AP
2) AP sends challenge text
3) Client encrypts
challenge text and
sends it back to AP
4) AP decrypts, and if correct,
authenticates client
5) Client connects to network
802.11 Authentication
Shared Key Steps
Cable or
DLS modem Client
attempting
to connect