ZyXEL Communications ZyAIR G-220 User Manual
ZyAIR G-220 User’s Guide
2-4
Wireless LAN Network
The following figure depicts a roaming example. When wireless station B moves to position X, the ZyAIR
in wireless station B automatically switches the channel to the one used by access point 2 in order to stay
connected to the network.
in wireless station B automatically switches the channel to the one used by access point 2 in order to stay
connected to the network.
Figure 2-5 Roaming Example
2.2 Wireless
LAN
Security
Wireless LAN security is vital to your network to protect wireless communications.
Configure the wireless LAN security using the Configuration or the Profile Security Settings screen. If
you do not enable any wireless security on your ZyAIR, the ZyAIR’s wireless communications are
accessible to any wireless networking device that is in the coverage area.
Configure the wireless LAN security using the Configuration or the Profile Security Settings screen. If
you do not enable any wireless security on your ZyAIR, the ZyAIR’s wireless communications are
accessible to any wireless networking device that is in the coverage area.
2.2.1 Data Encryption with WEP
WEP (Wired Equivalent Privacy) encryption scrambles all data packets transmitted between the ZyAIR 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 ZyAIR.
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 ZyAIR.
• 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).
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).