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Getting Started

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ZyXEL AG-225H v2 User's Guide CHAPTER 1 Getting Started This chapter introduces the AG-225H v2 and prepares you to use the ZyXEL utility. 1.1 About Your AG-225H v2 The AG-225H v2 is an IEEE 802.11a/b/g compliant wireless LAN adapter that connects to the USB port on your computer and allows you to search for and connect to wireless networks. You can also turn your AG-225H v2 into an access point (AP) using the ZyXEL utility. The ZyXEL utility is a tool that helps you configure your AG-225H v2. See the appendix for detailed product specifications. When the AG-225H v2 is not connected to a computer, you can locate wireless networks and see their details on the AG-225H v2's LCD screen. For more information about using the AG225H v2 when it is not connected to a computer, see the Quick Start Guide. 1.2 Application Overview This section describes some network applications for the AG-225H v2. 1.2.1 Station Mode The AG-225H v2 is in wireless station mode by default. When the AG-225H v2 works as a wireless station (wireless client), 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). 1.2.1.1 Infrastructure To connect to a network via an access point (AP), set the AG-225H v2 network type to Infrastructure. Through the AP, you can access the Internet or the wired network behind the AP. Chapter 1 Getting Started 19

Section	Page
User’s Guide	1
Copyright	3
Certifications	3
ZyXEL Limited Warranty	5
Customer Support	6
Table of Contents	9
List of Figures	13
List of Tables	15
Preface	17
Getting Started	19
1.1 About Your AG-225H v2	19
1.2 Application Overview	19
1.2.1 Station Mode	19
1.2.1.1 Infrastructure	19
1.2.1.2 Ad-Hoc	20
1.2.2 Access Point Mode	21
1.2.3 Changing AG-225H v2 Mode	21
1.3 AG-225H v2 Hardware and Utility Installation	22
1.3.1 ZyXEL Utility Icon	22
1.4 Configuration Methods	22
1.4.1 Enabling WZC	22
1.4.2 Accessing the ZyXEL Utility	23
Tutorial	25
2.1 Connecting to a Wireless LAN	25
2.2 Creating and Using a Profile	27
2.3 Configuring the AG-225H v2 as an AP	31
Wireless LAN Network	33
3.1 Wireless LAN Overview	33
3.2 Wireless LAN Security	34
3.2.1 Hide SSID	34
3.2.2 MAC Address Filter	34
3.2.3 User Authentication and Encryption	35
3.2.3.1 WEP	35
3.2.3.2 IEEE 802.1x	36
3.2.3.3 WPA and WPA2	36
Wireless Station Mode Configuration	39
4.1 Wireless Station Mode Overview	39
4.1.1 ZyXEL Utility Screen Summary	39
4.2 The Link Info Screen	40
4.2.1 Trend Chart	41
4.3 The Site Survey Screen	42
4.3.1 Security Settings	43
4.3.1.1 WEP Encryption	43
4.3.1.2 WPA-PSK/WPA2-PSK	44
4.3.1.3 WPA/WPA2	45
4.3.1.4 IEEE 802.1x	46
4.3.2 Confirm Save Screen	47
4.4 The Profile Screen	48
4.4.1 Adding a New Profile	50
4.5 The Adapter Screen	54
Access Point Mode Configuration	57
5.1 Access Point Mode Introduction	57
5.1.1 ZyXEL Utility Screen Summary	57
5.1.2 Additional Setup Requirements	58
5.2 The Link Info Screen	58
5.3 The Configuration Screen	59
5.4 The MAC Filter Screen	61
Maintenance	63
6.1 The About Screen	63
6.2 Uninstalling the ZyXEL Utility	63
6.3 Upgrading the ZyXEL Utility	64
Troubleshooting	67
7.1 Problems Starting the ZyXEL Utility	67
7.2 Problem Connecting to an Access Point	67
7.3 Problem with the Link Quality	68
7.4 Problems Communicating With Other Computers	68
Product Specifications	69
Access Point Mode Setup Example	71
Configuring the Computer on Which You Install the AG-225H v2	71
Configuring the Wireless Station Computer	73
Management with Wireless Zero Configuration	75
Activating Wireless Zero Configuration	75
Connecting to a Wireless Network	76
Security Settings	79
Association	79
Authentication	81
Ordering the Preferred Networks	84
Wireless Security	87
Types of EAP Authentication	87
EAP-MD5 (Message-Digest Algorithm 5)	87
EAP-TLS (Transport Layer Security)	88
EAP-TTLS (Tunneled Transport Layer Service)	88
PEAP (Protected EAP)	88
LEAP	88
Dynamic WEP Key Exchange	88
WPA and WPA2	89
Encryption	89
User Authentication	90
WPA(2)-PSK Application Example	91
WPA(2) with RADIUS Application Example	91
Security Parameters Summary	92
Setting up Your Computer’s IP Address	93
Windows 2000/XP	93
Verifying Settings	97
Index	99
A	99
C	99
D	99
E	99
F	99
G	99
H	99
I	99
K	100
L	100
M	100
N	100
O	100
P	100
Q	100
R	100
S	100
T	101
U	101
V	101
W	101

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ZyXEL AG-225H v2 User’s Guide

Chapter 1 Getting Started

HAPTER

Getting Started

This chapter introduces the AG-225H v2 and prepares you to use the ZyXEL utility.

1.1

About Your AG-225H v2

The AG-225H v2 is an IEEE 802.11a/b/g compliant wireless LAN adapter that connects to the

USB port on your computer and allows you to search for and connect to wireless networks.

You can also turn your AG-225H v2 into an access point (AP) using the ZyXEL utility. The

ZyXEL utility is a tool that helps you configure your AG-225H v2. See the appendix for

detailed product specifications.

When the AG-225H v2 is not connected to a computer, you can locate wireless networks and

see their details on the AG-225H v2’s LCD screen. For more information about using the AG-

225H v2 when it is not connected to a computer, see the Quick Start Guide.

1.2

Application Overview

This section describes some network applications for the AG-225H v2.

1.2.1

Station Mode

The AG-225H v2 is in wireless station mode by default. When the AG-225H v2 works as a

wireless station (wireless client), 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).

1.2.1.1

Infrastructure

To connect to a network via an access point (AP), set the AG-225H v2 network type to

Infrastructure

. Through the AP, you can access the Internet or the wired network behind the

AP.