ZyXEL Communications B-2000 User Manual

Page of 204
ZyAIR B-2000 Wireless LAN Gateway with 4-Port Switch  
Wireless LAN Security Setup 
4-1 
Chapter 4 
Wireless LAN Security Setup 
This chapter describes the types of security you can enable on the ZyAIR.  
4.1  Levels of Security 
Wireless security is vital to your network to protect wireless communication between wireless clients, 
access points and other wireless. 
The figure below shows the possible wireless security levels on your ZyAIR. The highest security level is 
EAP (Extensible Authentication Protocol) authentication. It requires interaction with a RADIUS (Remote 
Authentication Dial-In User Service) server either on the WAN or your LAN to provide authentication 
service for wireless clients.  
 
Figure 4-1 ZyAIR Wireless Security Levels 
If you do not enable any wireless security on your ZyAIR, your network is accessible to any wireless 
networking device that is within range.  
4.2  Data Encryption with WEP 
WEP encryption scrambles the data transmitted between the wireless clients and the access points 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. For 
wireless LAN setup, refer to section on Wireless LAN Setup
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. Follow the steps below to configure and enable WEP encryption.