ZyXEL 91-005-124003B Datasheet download pdf (Page 60)

G-1000 User’s Guide

60 Chapter 6 Wireless LAN

Figure 18 WPA(2) - PSK Authentication

6.6.2 WPA(2) with RADIUS Application Example

You need the IP address, port number (default is 1812) and shared secret of a RADIUS server.

A WPA(2) application example with an external RADIUS server looks as follows. "A" is the

RADIUS server. "DS" is the distribution system (wired link to the LAN).

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

transmitted between the AP and the wireless clients

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ZyXEL 91-005-124003B Datasheet Page 60