ZyXEL Communications 662HW Series - Manual (Page 90)

Prestige 662H/HW Series User’s Guide
Chapter 8 Wireless LAN Setup 90
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H A P T E R
8
Wireless LAN Setup
This chapter discusses how to configure Wireless LAN on the Prestige.
8.1 Introduction
This section introduces the wireless LAN and some basic configurations. Wireless LANs can
be as simple as two computers with wireless LAN cards communicating in a peer-to-peer
network or as complex as a number of computers with wireless LAN cards communicating
through access points which bridge network traffic to the wired LAN.
8.1.1 Additional Installation Requirements for Using 802.1x
• A computer with an IEEE 802.11b/g wireless LAN card and equipped with a web
browser (with JavaScript enabled) and/or Telnet.
• A wireless station computer must be running IEEE 802.1x-compliant software. Not all
Windows operating systems support IEEE 802.1X (see the Microsoft web site for
details). For other operating systems, see its documentation. If your operating system
does not support IEEE 802.1X, then you may need to install IEEE 802.1X client
software.
• An optional network RADIUS server for remote user authentication and accounting.
8.1.2 Channel
A channel is the radio frequency(ies) used by IEEE 802.11b/g wireless devices. Channels
available depend on your geographical area. You may have a choice of channels (for your
region) so you should use a different channel than an adjacent AP (access point) to reduce
interference. Interference occurs when radio signals from different access points overlap
causing interference and degrading performance.
Adjacent channels partially overlap however. To avoid interference due to overlap, your AP
should be on a channel at least five channels away from a channel that an adjacent AP is using.
For example, if your region has 11 channels and an adjacent AP is using channel 1, then you
need to select a channel between 6 or 11.