ZyXEL Communications LTE3316-M604, Руководство пользователя

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Chapter 8 Wireless LAN
LTE3316 Series User’s Guide
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The types of encryption you can choose depend on the type of user authentication. (See page 68 for
information about this.)
For example, if the wireless network has a RADIUS server, you can choose WPA/WPA2 or WPA2 . If users do
not log in to the wireless network, you can choose None , WPA-PSK , or WPA-PSK/WPA2-PSK .
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-PSK , WPA , 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-PSK , WPA 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 Zyxel Device, you can also select an option ( WPA / WPA-PSK
Compatible ) to support WPA/WPA-PSK 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 / WPA-PSK Compatible option in the Zyxel Device.
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
Section 4.2 on page 32 .
8.2 General Wireless LAN Settings
Use this screen to configure the SSID and wireless security of the wireless LAN.
Table 17 Types of Encryption for Each Type of Authentication
NO AUTHENTICATION RADIUS SERVER
Weakest No Security WPA
WPA-PSK
Strongest WPA2-PSK WPA2