ZyXEL Communications nbg-418n 사용자 설명서

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Chapter 6 Wireless LAN
NBG-418N User’s Guide
70
6.3.1.3  Encryption
Wireless networks can use encryption to protect the information that is sent in the wireless 
network. Encryption is like a secret code. If you do not know the secret code, you cannot 
understand the message.
For example, if users do not log in to the wireless network, you can choose no encryption, Static 
WEP
WPA-PSK, or WPA2-PSK.
Usually, you should set up the strongest encryption that every wireless client in the wireless 
network supports. Suppose the wireless network has two wireless clients. Device A only supports 
WEP, and device B supports WEP and WPA-PSK. Therefore, you should set up Static WEP in the 
wireless network.
Note: It is recommended that wireless networks use WPA-PSK, 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.
When you select WPA2-PSK in your NBG-418N, you can also select an option (WPA Compatible
to support WPA-PSK as well. In this case, if some wireless clients support WPA-PSK and some 
support WPA2-PSK, you should set up WPA2-PSK and select the WPA Compatible option in the 
NBG-418N.
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.
6.3.1.4  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 
6.4  General Wireless LAN Screen 
Use this screen to enable the Wireless LAN, enter the SSID and select the wireless security mode.
Table 25   
Types of Encryption for Each Type of Authentication
NO AUTHENTICATION
Weakest
No Security
Static WEP
WPA-PSK
Strongest
WPA2-PSK