ZyAIR G-3000 User’s Guide
Chapter 6 Wireless Security
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The encryption mechanisms used for WPA and WPA-PSK are the same. The only difference
between the two is that WPA-PSK uses a simple common password, instead of user-specific
credentials. The common-password approach makes WPA-PSK susceptible to brute-force
password-guessing attacks but it’s still an improvement over WEP as it employs an easier-to-
use, consistent, single, alphanumeric password.
6.11 WPA-PSK Application Example
A WPA-PSK application looks as follows.
1
First enter identical passwords into the AP and all wireless clients. The Pre-Shared Key
(PSK) must consist of between 8 and 63 ASCII characters (including spaces and
symbols).
2
The AP checks each client’s password and (only) allows it to join the network if it
matches its password.
3
The AP derives and distributes keys to the wireless clients.
4
The AP and wireless clients use the TKIP encryption process to encrypt data exchanged
between them.
Figure 34 WPA - PSK Authentication
6.12 WPA with RADIUS Application Example
You need the IP address of the RADIUS server, its port number (default is 1812), and the
RADIUS shared secret. A WPA application example with an external RADIUS server looks
as follows. “A” is the RADIUS server. “DS” is the distribution system.
Summary of Contents for ZyAIR G-3000
Page 14: ...ZyAIR G 3000 User s Guide 15 Table of Contents...
Page 22: ...ZyAIR G 3000 User s Guide 23 List of Tables...
Page 26: ...ZyAIR G 3000 User s Guide 27 Preface...
Page 40: ...ZyAIR G 3000 User s Guide 41 Chapter 2 Introducing the Web Configurator...
Page 48: ...ZyAIR G 3000 User s Guide 49 Chapter 3 Wizard Setup...
Page 54: ...ZyAIR G 3000 User s Guide 55 Chapter 4 System Screens...
Page 100: ...ZyAIR G 3000 User s Guide 101 Chapter 8 IP Screen...
Page 116: ...ZyAIR G 3000 User s Guide 117 Chapter 10 Maintenance Figure 59 Restart Screen...
Page 122: ...ZyAIR G 3000 User s Guide 123 Chapter 11 Introducing the SMT...
Page 132: ...ZyAIR G 3000 User s Guide 133 Chapter 13 LAN Setup...
Page 174: ...ZyAIR G 3000 User s Guide 175 Appendix C Power over Ethernet Specifications...
Page 176: ...ZyAIR G 3000 User s Guide 177 Appendix D Brute Force Password Guessing Protection...
Page 188: ...ZyAIR G 3000 User s Guide 189 Appendix E Setting up Your Computer s IP Address...
Page 192: ...ZyAIR G 3000 User s Guide 193 Appendix F IP Address Assignment Conflicts...
Page 200: ...ZyAIR G 3000 User s Guide 201 Appendix G IP Subnetting...
Page 202: ...ZyAIR G 3000 User s Guide 203 Appendix H Command Interpreter...
Page 206: ...ZyAIR G 3000 User s Guide 207 Appendix I Log Descriptions...
Page 210: ...ZyAIR G 3000 User s Guide 211 Appendix J Wireless LAN and IEEE 802 11...
