ZyXEL Communications G-302 V3 Guide de l'utilisateur télécharger pdf (Page 32)

ZyXEL G-302 v3 User’s Guide

32 Chapter 2 Wireless LAN Network

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 10 WPA(2)-PSK Authentication

2.2.5 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)-RADIUS 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.

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ZyXEL Communications G-302 V3 Guide de l'utilisateur Page 32