ZyXEL Communications B-320 Guia do Utilizador descarregar pdf (Página 35)

ZyAIR Wireless LAN Utility

Wireless LAN Security 4-1

Chapter 4

Wireless LAN Security

This chapter shows you how to set up the wireless LAN security available in the ZyAIR.

4.1 Introduction

Wireless LAN security is vital to your network to protect wireless communication between wireless clients

and the wired network.

Configure the wireless LAN security using the Security screen. If you do not enable any wireless security

on your ZyAIR, communication between the ZyAIR and the wired network is accessible to any wireless

networking device that is in the coverage area.

4.2 Data Encryption with WEP

WEP (Wired Equivalent Privacy) encryption scrambles the data transmitted between the ZyAIR and the AP

or other wireless stations to keep network communications private. It encrypts unicast and multicast

communications in a network. Both the wireless clients and the access points must use the same WEP key

for data encryption and decryption.

There are two ways to create WEP keys in your ZyAIR.

• Automatic WEP key generation based on a password phrase or passphrase. The passphrase is case

sensitive. You must use the same passphrase for all ZyAIR wireless devices with this feature in

the same WLAN.

For WLAN adapters without the passphrase feature, you can still take advantage of this feature by

writing down the automatically generated WEP keys in the Security screen of the ZyAIR Utility

then entering them manually to set the WEP keys in the other WLAN adapter(s).

• Enter the WEP keys manually.

Your ZyAIR allows you to configure up to four 64-bit or 128-bit WEP keys but only one key can be

enabled at any one time.

4.2.1 Configuring the WEP Encryption on the ZyAIR

Click the Security tab to display the Security screen as shown below.

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ZyXEL Communications B-320 Guia do Utilizador Página 35