ZyXEL Communications Corporation NBG6616 Manuel D’Utilisation

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 Chapter 11 Wireless LAN
NBG6616 User’s Guide
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11.1.1  What You Can Do
• Use  the  General screen to turn the wireless connection on or off, set up wireless security 
between the NBG6616 and the wireless clients, and make other basic configuration changes 
(
).
• Use  the  More AP screen to set up multiple wireless networks on your NBG6616 (
). 
• Use  the  MAC Filter screen to allow or deny wireless stations based on their MAC addresses from 
connecting to the NBG6616 (
).
• Use  the  Advanced screen to allow intra-BSS networking and set the RTS/CTS Threshold (
).
• Use  the  QoS screen to ensure Quality of Service (QoS) in your wireless network (
).
• Use  the  WPS screen to quickly set up a wireless network with strong security, without having to 
configure security settings manually (
).
• Use  the  WPS Station screen to add a wireless station using WPS (
). 
• Use  the  Scheduling screen to set the times your wireless LAN is turned on and off (
).
11.1.2  What You Should Know
Every wireless network must follow these basic guidelines.
• Every wireless client in the same wireless network must use the same SSID.
The SSID is the name of the wireless network. It stands for Service Set IDentity.
• If two wireless networks overlap, they should use different channels.
Like radio stations or television channels, each wireless network uses a specific channel, or 
frequency, to send and receive information.
• Every wireless client in the same wireless network must use security compatible with the AP.
Security stops unauthorized devices from using the wireless network. It can also protect the 
information that is sent in the wireless network.
Wireless Security Overview
The following sections introduce different types of wireless security you can set up in the wireless 
network.
SSID
Normally, the AP acts like a beacon and regularly broadcasts the SSID in the area. You can hide the 
SSID instead, in which case the AP does not broadcast the SSID. In addition, you should change 
the default SSID to something that is difficult to guess.
This type of security is fairly weak, however, because there are ways for unauthorized devices to 
get the SSID. In addition, unauthorized devices can still see the information that is sent in the 
wireless network.