ZyXEL Communications VSG1432 Guia do Utilizador descarregar pdf (Página 370)

Appendix D Wireless LANs

VSG1432-B101 Series User’s Guide

370

The following figure shows the relative effectiveness of these wireless security

methods available on your ZyXEL Device.

Note: You must enable the same wireless security settings on the ZyXEL Device and

on all wireless clients that you want to associate with it.

IEEE 802.1x

In June 2001, the IEEE 802.1x standard was designed to extend the features of

IEEE 802.11 to support extended authentication as well as providing additional

accounting and control features. It is supported by Windows XP and a number of

network devices. Some advantages of IEEE 802.1x are:

• User based identification that allows for roaming.

• Support for RADIUS (Remote Authentication Dial In User Service, RFC 2138,

2139) for centralized user profile and accounting management on a network

RADIUS server.

• Support for EAP (Extensible Authentication Protocol, RFC 2486) that allows

additional authentication methods to be deployed with no changes to the access

point or the wireless clients.

RADIUS

RADIUS is based on a client-server model that supports authentication,

authorization and accounting. The access point is the client and the server is the

RADIUS server. The RADIUS server handles the following tasks:

• Authentication

Determines the identity of the users.

Table 127 Wireless Security Levels

SECURITY

LEVEL

SECURITY TYPE

Least

Secure

Most Secure

Unique SSID (Default)

Unique SSID with Hide SSID Enabled

MAC Address Filtering

WEP Encryption

IEEE802.1x EAP with RADIUS Server

Authentication

Wi-Fi Protected Access (WPA)

WPA2

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