Encryption; Table 22 Types Of Encryption For Each Type Of Wireless Network Login - ZyXEL Communications ZyAir G-2000 PlusV2 User Manual

• In the AP: this feature is called a local user database or a local database.
• In a RADIUS server: this is a server used in businesses more than in homes.
If your AP does not provide a local user database and if you do not have a RADIUS server,
you cannot set up user names and passwords for your users.
Unauthorized devices can still see the information that is sent in the wireless network, even if
they cannot use the wireless network. Furthermore, there are ways for unauthorized wireless
users to get a valid user name and password. Then, they can use that user name and password
to use the wireless network.
Local user databases also have an additional limitation that is explained in the next section.

6.2.4 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.
The types of encryption you can choose depend on the type of wireless network login. (See
Section 6.2.3 on page 82

Table 22 Types of Encryption for Each Type of Wireless Network Login

Weakest
Strongest
For example, if the wireless network has a RADIUS server, you can choose IEEE 802.1x,
IEEE 802.1x + Static WEP, WPA or WPA2. 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 device in the wireless network
supports. For example, suppose you have a wireless network with the ZyXEL device. The
ZyXEL device does not have a local user database, and you do not have a RADIUS server.
Therefore, there is no wireless network login. Suppose the wireless network has two devices.
Device A only supports WEP, and device B supports WEP and WPA. Therefore, you should
set up Static WEP in the wireless network.
Chapter 6 Wireless LAN
for information about this.)
No Login
None
Static WEP IEEE 802.1x + Static WEP
WPA-PSK
WPA2-PSK
ZyXEL G-2000 Plus v2 User's Guide
Local Database
IEEE 802.1x
IEEE 802.1x + Static WEP
RADIUS Server
IEEE 802.1x
WPA
WPA2
83