ZyXEL P-330W User Guide - Page 51

Wireless Advanced Settings

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ZyXEL P-330W User's Guide 5.4 Wireless Advanced Settings Click ADVANCED SETTINGS to configure the advanced settings of your wireless LAN. 5.4.1 Authentication Three different methods can be used to authenticate wireless stations to the network: Open System, Shared Key, and Auto. The following figure illustrates the steps involved. Figure 25 WEP Authentication Steps Open system authentication involves an unencrypted two-message procedure. A wireless station sends an open system authentication request to the AP, which will then automatically accept and connect the wireless station to the network. In effect, open system is not authentication at all as any station can gain access to the network. Shared key authentication involves a four-message procedure. A wireless station sends a shared key authentication request to the AP, which will then reply with a challenge text message. The wireless station must then use the AP's default WEP key to encrypt the challenge text and return it to the AP, which attempts to decrypt the message using the AP's default WEP key. If the decrypted message matches the challenge text, the wireless station is authenticated. 51 Chapter 5 Wireless

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ZyXEL P-330W User’s Guide
51
Chapter 5 Wireless
5.4
Wireless Advanced Settings
Click
ADVANCED SETTINGS
to configure the advanced settings of your wireless LAN.
5.4.1
Authentication
Three different methods can be used to authenticate wireless stations to the network:
Open
System
,
Shared Key
, and
Auto
. The following figure illustrates the steps involved.
Figure 25
WEP Authentication Steps
Open system authentication involves an unencrypted two-message procedure. A wireless
station sends an open system authentication request to the AP, which will then automatically
accept and connect the wireless station to the network. In effect, open system is not
authentication at all as any station can gain access to the network.
Shared key authentication involves a four-message procedure. A wireless station sends a
shared key authentication request to the AP, which will then reply with a challenge text
message. The wireless station must then use the AP’s default WEP key to encrypt the
challenge text and return it to the AP, which attempts to decrypt the message using the AP’s
default WEP key. If the decrypted message matches the challenge text, the wireless station is
authenticated.