ZyXEL Communications P-662H User Manual

P-662H/HW-D Series User’s Guide

Chapter 7 Wireless LAN

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The following table describes wireless network terms and acronyms used in the ZyXEL 
Device.

Note: If you are configuring the ZyXEL Device from a computer connected to the 

wireless LAN and you change the ZyXEL Device’s SSID or WEP settings, you 
will lose your wireless connection when you press Apply to confirm. You must 
then change the wireless settings of your computer to match the ZyXEL 
Device’s new settings.

Click Network > Wireless LAN to open the General screen.

Table 36   Additional Wireless Terms

Intra-BSS Traffic

This describes direct communication (not through the ZyXEL Device) between 

two wireless devices within a wireless network. You might disable this kind of 

communication to enhance security within your wireless network.

RTS/CTS Threshold

In a wireless network which covers a large area, wireless devices are 

sometimes not aware of each other’s presence. This may cause them to send 

information to the AP at the same time and result in information colliding and 

not getting through.
By setting this value lower than the default value, the wireless devices must 

sometimes get permission to send information to the ZyXEL Device. The lower 

the value, the more often the devices must get permission.
If this value is greater than the fragmentation threshold value (see below), then 

wireless devices never have to get permission to send information to the 

ZyXEL Device.

Preamble

A preamble affects the timing in your wireless network. There are two 

preamble modes: long and short.

 

If a device uses a different preamble mode 

than the ZyXEL Device does, it cannot communicate with the ZyXEL Device.

Authentication

The process of verifying whether a wireless device is allowed to use the 

wireless network.

Max. Frame Burst

Enable this to improve the performance of both pure IEEE 802.11g and mixed 

IEEE 802.11b/g networks. Maximum Frame Burst sets the maximum time that 

the ZyXEL Device transmits IEEE 802.11g wireless traffic only.

Fragmentation 

Threshold

A small fragmentation threshold is recommended for busy networks, while a 

larger threshold provides faster performance if the network is not very busy.

Roaming

If you have two or more ZyXEL Devices (or other wireless access points) on 

your wireless network, you can enable this option so that wireless devices can 

change locations without having to log in again. This is useful for devices, such 

as notebooks, that move around a lot.