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ZyXEL G-270S User’s Guide
26 Chapter 2 Wireless LAN Network
2.1.4 Super G
The Super G technology works with IEEE 802.11 a/b/g products. It doubles IEEE 802.11g
performance by bonding two 54Mbps channels and allowing larger frames to be sent. IEEE
802.11g wireless LAN devices using Super G can transmit at up to 108 Mbps.
2.2 Wireless LAN Security Overview
Wireless LAN security is vital to your network to protect wireless communications.
Configure the wireless LAN security using the Profile Security Setting screen. If you do not
enable any wireless security on your ZyXEL G-270S, the ZyXEL G-270S’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 ZyXEL G-270S 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 ZyXEL G-270S.
• 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
Setting 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 ZyXEL G-270S allows you to configure up to four 64-bit, 128-bit or 152-bit WEP
keys and only one key is used as the default key at any one time.
2.2.2 IEEE 802.1x
The IEEE 802.1x standard outlines enhanced security methods for both the authentication of
wireless stations and encryption key management. Authentication can be done using an
external RADIUS server.