Netgear WGU624 User Manual download pdf (Page 148)

Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624

D-4 Wireless Networking Basics

M-10153-01

• Shared Key Authentication requires that the station and the access point have the same WEP

Key to authenticate. These two authentication procedures are described below.

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.

This process is illustrated in below.

Figure 6-1: Open system authentication

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.

2. The access point sends challenge text to the station.

3. The station uses its configured 64-bit or 128-bit default key to encrypt the challenge text, and

sends the encrypted text to the access point.

4. The access point decrypts the encrypted text using its configured WEP Key that corresponds

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.

INTERNET LOCAL

ACT

12345678

LNK

LNK/ACT

100

Cable/DSL

ProSafeWirelessVPN SecurityFirewall

MODEL

FVM318

PWR TEST

WLAN

Enable

Access Point (AP)

1) Authentication request sent to AP

2) AP authenticates

3) Client connects to network

Open System

Authentication Steps

Cable or

DLS modem

Client

attempting

to connect

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