ZyXEL Communications Corporation NWD211AN Manual De Usuario

 Chapter 3 Wireless LANs

NWD-211AN User’s Guide

Wireless LAN security is vital to your network to protect wireless communications.

If you do not enable any wireless security on your NWD-211AN, the NWD-211AN’s wireless 
communications are accessible to any wireless networking device that is in the coverage area. 

"

You can use only WEP encryption if you set the NWD-211AN to Ad-hoc mode.

See the appendices for more detailed information about wireless security.

You can make every user log in to the wireless network before they can use it. This is called 
user authentication. However, every wireless client in the wireless network has to support 
IEEE 802.1x to do this.

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.

WEP (Wired Equivalent Privacy) encryption scrambles all data packets transmitted between 
the NWD-211AN and the AP or other wireless stations to keep network communications 
private. Both the wireless stations and the access points must use the same WEP key for data 
encryption and decryption.

There are two ways to create WEP keys in your NWD-211AN.

• Automatic WEP key generation based on a “password phrase” called a passphrase. The 

passphrase is case sensitive. You must use the same passphrase for all WLAN adapters 
with this feature in the same WLAN.

For WLAN adapters without the passphrase feature, you can still take advantage of this 
feature by writing down the four automatically generated WEP keys from the Security 
Settings screen of the ZyXEL Utility and entering them manually as the WEP keys in the 
other WLAN adapter(s).

• Enter the WEP keys manually.

Your NWD-211AN allows you to configure up to four 64-bit, 128-bit or 152-bit WEP 
keys. Only one key is used as the default key at any one time.