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ZyXEL G-220 User Guide - Page 45

Introduction to OTIST, 3.4.1 Enabling OTIST, 3.4.1.1 AP

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ZyXEL G-220 v2 User's Guide You can easily check to see if this has happened. WPS works between only two devices simultaneously, so if another device has enrolled your device will be unable to enroll, and will not have access to the network. If this happens, open the access point's configuration interface and look at the list of associated clients (usually displayed by MAC address). It does not matter if the access point is the WPS registrar, the enrollee, or was not involved in the WPS handshake; a rogue device must still associate with the access point to gain access to the network. Check the MAC addresses of your wireless clients (usually printed on a label on the bottom of the device). If there is an unknown MAC address you can remove it or reset the AP. 3.4 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. 3.4.1 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. 3.4.1.1 AP On the P-334WT, you can enable OTIST using the Reset button or the web configurator. If you use the Reset button, the default (01234567) or previous saved (through the web configurator) Setup key is used to encrypt the settings that you want to transfer. Hold in the Reset button for one or two seconds. Note: If you hold in the Reset button too long, the device may reset to the factory defaults! Chapter 3 Wireless LAN Network 45

Section	Page
User’s Guide	1
About This User's Guide	3
Document Conventions	4
Safety Warnings	6
Copyright	7
Certifications	8
ZyXEL Limited Warranty	10
Table of Contents	11
List of Figures	15
List of Tables	19
Getting Started	21
1.1 About Your G-220 v2	21
1.2 Application Overview	21
1.2.1 Windows Vista Users	21
1.2.2 Station Mode	21
1.2.2.1 Infrastructure	21
1.2.2.2 Ad-Hoc	22
1.2.3 Access Point Mode	23
1.2.4 Changing G-220 v2 Mode	23
1.3 G-220 v2 Hardware and Utility Installation	24
1.3.1 ZyXEL Utility Icon	24
1.4 Configuration Methods	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-220 v2 as an AP	32
Wireless LAN Network	35
3.1 Wireless LAN Overview	35
3.2 Wireless LAN Security	36
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 WiFi Protected Setup	39
3.3.1 Push Button Configuration	39
3.3.2 PIN Configuration	39
3.3.3 How WPS Works	41
3.3.3.1 Example WPS Network Setup	42
3.3.4 Limitations of WPS	44
3.4 Introduction to OTIST	45
3.4.1 Enabling OTIST	45
3.4.1.1 AP	45
3.4.1.2 Wireless Client	46
3.4.2 Starting OTIST	47
3.4.3 Notes on OTIST	47
Wireless Station Mode Configuration	49
4.1 Wireless Station Mode Overview	49
4.1.1 ZyXEL Utility Screen Summary	49
4.2 The Link Info Screen	50
4.2.1 Trend Chart	51
4.3 The Site Survey Screen	52
4.3.1 Security Settings	53
4.3.1.1 WEP Encryption	54
4.3.1.2 WPA-PSK/WPA2-PSK	55
4.3.1.3 WPA/WPA2	56
4.3.1.4 IEEE 802.1x	57
4.3.2 Confirm Save Screen	59
4.4 The Profile Screen	60
4.4.1 Adding a New Profile	62
4.5 The Adapter Screen	66
4.6 Security Settings in Windows Vista	69
4.6.1 Using PEAP in Vista	69
4.6.2 Using TLS in Vista	70
Access Point Mode Configuration	73
5.1 Access Point Mode Introduction	73
5.1.1 ZyXEL Utility Screen Summary	73
5.1.2 Additional Setup Requirements	74
5.2 The Link Info Screen	74
5.3 The Configuration Screen	75
5.4 The MAC Filter Screen	77
Maintenance	79
6.1 The About Screen	79
6.2 Uninstalling the ZyXEL Utility	79
6.3 Upgrading the ZyXEL Utility	80
Troubleshooting	83
7.1 Problems Starting the ZyXEL Utility	83
7.2 Problem Connecting to an Access Point	83
7.3 Problem with the Link Quality	84
7.4 Problems Communicating With Other Computers	84
Product Specifications	85
Access Point Mode Setup Example	87
Configuring the Computer on Which You Install the G-220 v2	87
Configuring the Wireless Station Computer	89
Management with Wireless Zero Configuration	91
Activating Wireless Zero Configuration	91
Connecting to a Wireless Network	92
Security Settings	95
Association	96
Authentication	97
Ordering the Preferred Networks	100
Wireless Security	103
Types of EAP Authentication	103
EAP-MD5 (Message-Digest Algorithm 5)	103
EAP-TLS (Transport Layer Security)	104
EAP-TTLS (Tunneled Transport Layer Service)	104
PEAP (Protected EAP)	104
LEAP	104
Dynamic WEP Key Exchange	104
WPA and WPA2	105
Encryption	105
User Authentication	106
WPA(2)-PSK Application Example	107
WPA(2) with RADIUS Application Example	107
Security Parameters Summary	108
Setting up Your Computer’s IP Address	109
Windows 95/98/Me	109
Installing Components	110
Configuring	111
Verifying Settings	112
Windows 2000/NT/XP	112
Verifying Settings	116
Macintosh OS 8/9	116
Verifying Settings	118
Macintosh OS X	118
Verifying Settings	119
Customer Support	121

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ZyXEL G-220 v2 User’s Guide

Chapter 3 Wireless LAN Network

You can easily check to see if this has happened. WPS works between only two devices

simultaneously, so if another device has enrolled your device will be unable to enroll, and

will not have access to the network. If this happens, open the access point’s configuration

interface and look at the list of associated clients (usually displayed by MAC address). It

does not matter if the access point is the WPS registrar, the enrollee, or was not involved

in the WPS handshake; a rogue device must still associate with the access point to gain

access to the network. Check the MAC addresses of your wireless clients (usually printed

on a label on the bottom of the device). If there is an unknown MAC address you can

remove it or reset the AP.

3.4

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.

3.4.1

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

3.4.1.1

On the P-334WT, you can enable OTIST using the

Reset

button or the web configurator. If

you use the

Reset

button, the default (01234567) or previous saved (through the web

configurator)

Setup

key

is used to encrypt the settings that you want to transfer.

Hold in the

Reset

button for one or two seconds.

Note:

If you hold in the

Reset

button too long, the device may reset to the factory

defaults!