ZyXEL G-120 User’s Guide
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Chapter 3 Wireless LAN Network
3.2.1.3 WPA and WPA2
Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard. WPA2 (IEEE
802.11i) is a wireless security standard that defines stronger encryption, authentication and
key management than WPA.
Key differences between WPA(2) and WEP are improved data encryption and user
authentication.
Both WPA and WPA2 improve data encryption by using Temporal Key Integrity Protocol
(TKIP), Message Integrity Check (MIC) and IEEE 802.1x. WPA and WPA2 use Advanced
Encryption Standard (AES) in the Counter mode with Cipher block chaining Message
authentication code Protocol (CCMP) to offer stronger encryption than TKIP.
If both an AP and the wireless clients support WPA2 and you have an external RADIUS
server, use WPA2 for stronger data encryption. If you don't have an external RADIUS server,
you should use WPA2-PSK (WPA2-Pre-Shared Key) that only requires a single (identical)
password entered into each access point, wireless gateway and wireless client. As long as the
passwords match, a wireless client will be granted access to a WLAN.
If the AP or the wireless clients do not support WPA2, just use WPA or WPA-PSK depending
on whether you have an external RADIUS server or not.
Select WEP only when the AP and/or wireless clients do not support WPA or WPA2. WEP is
less secure than WPA or WPA2.
3.3 Introduction to OTIST
In a wireless network, the wireless clients must have the same SSID and security settings as
the access point (AP) or wireless router (we will refer to both as “AP” here) in order to
associate with it. Traditionally this meant that you had to configure the settings on the AP and
then manually configure the exact same settings on each wireless client.
OTIST (One-Touch Intelligent Security Technology) allows you to transfer your AP’s SSID
and WEP or WPA-PSK security settings to wireless clients that support OTIST and are within
transmission range. You can also choose to have OTIST generate a WPA-PSK key for you if
you didn’t configure one manually.
3.3.1 Enabling OTIST
You must enable OTIST on both the AP and wireless client before you start transferring
settings.
We use the P-334WT in this guide as the example AP. Screens may vary slightly for your
ZyXEL devices.
Note:
The AP and wireless client(s) MUST use the same
Setup
key
.
Summary of Contents for G-120
Page 1: ...ZyXEL G 120 802 11g Wireless CardBus Card User s Guide Version 1 00 Edition 1 6 2006...
Page 2: ......
Page 11: ...ZyXEL G 120 User s Guide Table of Contents 11 Index 93...
Page 12: ...ZyXEL G 120 User s Guide 12 Table of Contents...
Page 16: ...ZyXEL G 120 User s Guide 16 List of Tables...
Page 36: ...ZyXEL G 120 User s Guide 36 Chapter 3 Wireless LAN Network...
Page 58: ...ZyXEL G 120 User s Guide 58 Chapter 5 Maintenance...
Page 74: ...ZyXEL G 120 User s Guide 74 Appendix B Management with Wireless Zero Configuration...
Page 92: ...ZyXEL G 120 User s Guide 92 Appendix D Setting up Your Computer s IP Address...
