Netgear Double 108 Mbps Wireless PC Card WG511U Bedienungsanleitung PDF herunterladen (Seite 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.

INTERNET LOCAL

ACT

12345678

LNK

LNK/ACT

100

Cable/DSL

ProSafeWireless VPN SecurityFirewall

MODEL

FVM318

PWR TEST

WLAN

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

INTERNET LOCAL

ACT

12345678

LNK

LNK/ACT

100

Cable/DSL

ProSafeWireless VPN SecurityFirewall

MODEL

FVM318

PWR TEST

WLAN

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

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