Netgear MA111v2 - 11 Mbps Wireless USB Adapter 사용자 설명서

B-6

Wireless Networking Basics

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.

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 802.11b device decrypts the data 
using the same WEP Key. For authentication purposes, the 802.11b network uses Open 
System Authentication.

3.

Use WEP for Authentication and Encryption: A transmitting 802.11 device encrypts the 
data portion of every packet it sends using a configured WEP Key. The receiving 802.11 
device decrypts the data using the same WEP Key. For authentication purposes, the 802.11 
network uses Shared Key Authentication.

I N TER N ET

LO C A L

Cable/DSL

ProSafe Wireless VPN Security Firewall

MODEL

FVM318

PWR

TEST

W LA N

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

Cable or

DLS modem

Client
attempting
to connect