ZyXEL Communications Corporation NBG419N Manuel D’Utilisation
Chapter 11 Wireless LAN
NBG-419N Users Guide
102
The types of encryption you can choose depend on the type of user
authentication.
authentication.
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 WEP in the wireless network.
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 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-419N, 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 (depending
on the type of wireless network login) and select the WPA Compatible option in
the NBG-419N.
(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 (depending
on the type of wireless network login) and select the WPA Compatible option in
the NBG-419N.
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.
network. The longer the key, the stronger the encryption. Every wireless client in
the wireless network must have the same key.
11.3.1.4 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
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 10.3 on page 89
.
11.3.1.5 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.
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.
Table 35 Types of Encryption for Each Type of Authentication
NO AUTHENTICATION
Weakest
No Security
WEP
WPA-PSK
WEP
WPA-PSK
Strongest
WPA2-PSK
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