ZyXEL G-120 User’s Guide
Appendix C Wireless Security
79
WPA(2)-PSK Application Example
A WPA(2)s-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 or 64 hexadecimal 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 and wireless clients use the pre-shared key to generate a common PMK.
4
The AP and wireless clients use the TKIP or AES encryption process to encrypt data
exchanged between them.
Figure 50
WPA-PSK Authentication
WPA(2) 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(2) application example with an external RADIUS server
looks as follows. "A" is the RADIUS server. "DS" is the distribution system.
1
The AP passes the wireless client's authentication request to the RADIUS server.
2
The RADIUS server then checks the user's identification against its database and grants
or denies network access accordingly.
3
The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then
sets up a key hierarchy and management system, using the pair-wise key to dynamically
generate unique data encryption keys to encrypt every data packet that is wirelessly
communicated between the AP and the wireless clients.
Summary of Contents for G-120
Page 1: ...ZyXEL G 120 802 11g Wireless CardBus Card User s Guide Version 1 00 Edition 1 6 2006...
Page 2: ......
Page 11: ...ZyXEL G 120 User s Guide Table of Contents 11 Index 93...
Page 12: ...ZyXEL G 120 User s Guide 12 Table of Contents...
Page 16: ...ZyXEL G 120 User s Guide 16 List of Tables...
Page 36: ...ZyXEL G 120 User s Guide 36 Chapter 3 Wireless LAN Network...
Page 58: ...ZyXEL G 120 User s Guide 58 Chapter 5 Maintenance...
Page 74: ...ZyXEL G 120 User s Guide 74 Appendix B Management with Wireless Zero Configuration...
Page 92: ...ZyXEL G 120 User s Guide 92 Appendix D Setting up Your Computer s IP Address...
