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ZyWALL 2 Series User's Guide
A large Fragmentation Threshold is recommended for networks not prone to interference while you should
set a smaller threshold for busy networks or networks that are prone to interference.
If the Fragmentation Threshold value is smaller than the RTS/CTS value (see previously) you set then the
RTS (Request To Send)/CTS (Clear to Send) handshake will never occur as data frames will be fragmented
before they reach RTS Threshold size.
7.3
Wireless 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 ZyWALL. 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 7-2 ZyWALL Wireless Security Levels
If you do not enable any wireless security on your ZyWALL, your network is accessible to any wireless
networking device that is within range.
Use the ZyWALL web configurator to configurator to set up your wireless LAN security settings. Refer to
the chapter on using the ZyWALL web configurator to see how to access the web configurator.
7.3.1 WEP
WEP provides a mechanism for encrypting data using encryption keys. Both the AP and the wireless stations
must use the same WEP key to encrypt and decrypt data. Your ZyWALL 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.
Wireless LAN Screens
7-3
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