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ZyXEL AG-225H User Guide - Page 55

Table 14

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Figure 38 Station Mode: Adapter ZyXEL AG-225H v2 User's Guide The following table describes the labels in this screen. Table 14 Station Mode: Adapter LABEL Adapter Setting Transfer Rate Preamble Type Power Saving Mode Save DESCRIPTION In most networking scenarios, the factory default Auto setting is the most efficient and allows your AG-225H v2 to operate at the highest possible transmission (data) rate. If you want to select a specific transmission rate, select one that the AP or peer wireless device supports. Note: With USB1.0/1.1, the AG-225H v2 can only transmit at up to 11Mbps. Preamble is used to signal that data is coming to the receiver. Select the preamble type that the AP uses. Short and Long refer to the length of the synchronization field in a packet. Short preamble increases performance as less time sending preamble means more time for sending data. All IEEE 802.11b/g compliant wireless adapters support Long preamble, but not all support short preamble. Select Auto to have the AG-225H v2 automatically use short preamble when all access point or wireless stations support it; otherwise the AG-225H v2 uses long preamble. Note: The AG-225H v2 and the access point or wireless stations MUST use the same preamble mode in order to communicate. Select Maximum Power Save or Fast Power Save to save power (especially for notebook computers). This forces the AG-225H v2 to go to sleep mode when it is not transmitting data. When you select Continuous Access Mode, the AG-225H v2 will never go to sleep mode. Click Save to save the changes to the AG-225H v2. Chapter 4 Wireless Station Mode Configuration 55

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