ZyXEL nbg-5715 Guia Do Utilizador

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Chapter 11 Wireless LAN
NBG5715 User’s Guide
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Usually, you should set up the strongest encryption that every wireless client in the wireless 
network supports. For example, suppose the AP does not have a local user database, and you do 
not have a RADIUS server. Therefore, there is no user authentication. Suppose the wireless network 
has two wireless clients. Device A only supports WEP, and device B supports WEP and WPA. 
Therefore, you should set up Static WEP in the wireless network.
Note: It is recommended that wireless networks use WPA-PSKWPA, or stronger 
encryption. IEEE 802.1x and WEP encryption are better than none at all, but it is 
still possible for unauthorized devices to figure out the original information pretty 
quickly.
Note: It is not possible to use WPA-PSKWPA or stronger encryption with a local user 
database. In this case, it is better to set up stronger encryption with no 
authentication than to set up weaker encryption with the local user database.
When you select WPA2 or WPA2-PSK in your NBG5715, you can also select an option (WPA 
Compatible
) to support WPA as well. In this case, if some wireless clients support WPA and some 
support WPA2, you should set up WPA2-PSK or WPA2 (depending on the type of wireless network 
login) and select the WPA Compatible option in the NBG5715.
Many types of encryption use a key to protect the information in the wireless network. The longer 
the key, the stronger the encryption. Every wireless client in the wireless network must have the 
same key.
WPS
WiFi Protected Setup (WPS) is an industry standard specification, defined by the WiFi Alliance. WPS 
allows you to quickly set up a wireless network with strong security, without having to configure 
security settings manually. Depending on the devices in your network, you can either press a 
button (on the device itself, or in its configuration utility) or enter a PIN (Personal Identification 
Number) in the devices. Then, they connect and set up a secure network by themselves. See how 
to set up a secure wireless network using WPS in the 
WDS
Wireless Distribution System or WDS security is used between bridged APs. It is independent of the 
security between the wired networks and their respective APs. If you do not enable WDS security, 
traffic between APs is not encrypted. When WDS security is enabled, both APs must use the same 
pre-shared key.
11.2  The General Wireless LAN Screen 
Use this screen to configure the SSIDs of the wireless LAN.
Note: If you are configuring the NBG5715 from a computer connected to the wireless LAN 
and you change the NBG5715’s SSID, channel or security 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 NBG5715’s new settings.