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Getting Started

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ZyXEL G-120 User's Guide CHAPTER 1 Getting Started This chapter introduces the G-120 and prepares you to use the ZyXEL utility. 1.1 About Your G-120 The G-120 is an IEEE 802.11b/g compliant wireless LAN adapter. You can also use the ZyXEL utility to turn your G-120 into an access point (AP). The ZyXEL utility is a tool that helps you configure your G-120. See the appendix for detailed product specifications. 1.2 Application Overview This section describes some network applications for the G-120. 1.2.1 Station Mode The G-120 acts as a wireless LAN adapter (station mode) by default. In station mode, you can either set the network type to Infrastructure and connect to an AP or use Ad-Hoc mode and connect to a peer computer (another wireless device in Ad-Hoc mode) without an AP. See Section 4.4 on page 52 for how to configure the network type. 1.2.1.1 Infrastructure To connect to a network via an access point (AP), set the G-120 network type to Infrastructure. Through the AP, you can access the Internet or the wired network behind the AP. Chapter 1 Getting Started 21

Section	Page
User’s Guide	1
Copyright	3
Certifications	4
Safety Warnings	6
ZyXEL Limited Warranty	7
Customer Support	8
Table of Contents	11
List of Figures	15
List of Tables	17
Preface	19
Getting Started	21
1.2.1 Station Mode	21
1.2.1.1 Infrastructure	21
1.2.1.2 Ad-Hoc	22
1.2.2 Access Point Mode	22
1.2.3 Changing G-120 Mode	23
1.2.4 G-120 Hardware and Utility Installation	24
1.4.1 Enabling WZC	24
1.4.2 Accessing the ZyXEL Utility	25
Tutorial	27
2.1 Connecting to a Wireless LAN	27
2.2 Creating and Using a Profile	29
2.3 Configuring the G-120 as an AP	32
Wireless LAN Network	35
3.2.1 Hide SSID	36
3.2.2 MAC Address Filter	36
3.2.3 User Authentication and Encryption	37
3.2.3.1 WEP	37
3.2.3.2 IEEE 802.1x	38
3.2.3.3 WPA and WPA2	38
3.3.1 Enabling OTIST	39
3.3.1.1 AP	39
3.3.1.2 Wireless Client	40
3.3.2 Starting OTIST	40
3.3.3 Notes on OTIST	41
Wireless Station Mode Configuration	43
4.1.1 ZyXEL Utility Screen Summary	43
4.2 The Link Info Screen	43
4.2.1 Trend Chart	45
4.3 The Site Survey Screen	46
4.3.1 Security Settings	47
4.3.1.1 WEP Encryption	47
4.3.1.2 WPA-PSK/WPA2-PSK	49
4.3.1.3 WPA/WPA2	49
4.3.1.4 802.1x	50
4.3.2 Confirm New Settings	51
4.4 The Profile Screen	52
4.4.1 Adding a New Profile	54
4.5 The Adapter Screen	58
Access Point Mode Configuration	61
5.1.1 ZyXEL Utility Screen Summary	61
5.1.2 Additional Setup Requirements	61
5.2 The Link Info Screen	62
5.3 The Configuration Screen	63
5.4 The MAC Filter Screen	65
Maintenance	67
Troubleshooting	71
7.1 Problems Starting the ZyXEL Utility	71
7.2 Problems with the Link Quality	71
7.3 Problems Communicating With Other Computers	72
Product Specifications	73
Access Point Mode Setup Example	75
Configuring the Computer on Which You Install the G-120	75
Configuring the Wireless Station Computer	77
Management with Wireless Zero Configuration	79
Activating Wireless Zero Configuration	79
Connecting to a Wireless Network	80
Security Settings	83
Association	83
Authentication	85
Ordering the Preferred Networks	88
Wireless Security	91
Types of EAP Authentication	91
EAP-MD5 (Message-Digest Algorithm 5)	91
EAP-TLS (Transport Layer Security)	92
EAP-TTLS (Tunneled Transport Layer Service)	92
PEAP (Protected EAP)	92
LEAP	92
Dynamic WEP Key Exchange	92
WPA and WPA2	93
Encryption	93
User Authentication	94
WPA(2)-PSK Application Example	95
WPA(2) with RADIUS Application Example	95
Security Parameters Summary	96
Setting up Your Computer’s IP Address	97
Windows 98/Me	97
Installing Components	98
Configuring	99
Verifying Settings	100
Windows 2000/XP	100
Verifying Settings	104
Index	105
A	105
C	105
D	105
E	105
F	105
G	105
H	105
I	106
L	106
M	106
N	106
O	106
P	106
Q	106
R	106
S	106
T	106
U	107
V	107
W	107