User Manual Part 1

IEEE802.11b/g/n Wireless LAN USB 2.0 Client Adapter Version 1.0

3.4.6 802.1x with TTLS with EAP-MD5, MS-CHAP, MS-CHAPv2

802.1X provides an authentication framework for wireless LANs allowing a user

to be authenticated by a central authority. 802.1X uses an existing protocol called

EAP. EAP (Extensible Authentication Protocol) is an extension to the PPP

protocol that enables a variety of authentication protocols to be used. It passes

through the exchange of authentication messages, allowing the authentication

software stored in a server to interact with its counterpart in the client. TLS

(Transport Layer Security) is an IETF standardized authentication protocol that

uses PKI (Public Key Infrastructure) certificate based authentication of both the

client and authentication server.

h Authentication Type: Select TTLS from the drop-down list.

h Protocol: Select EAP-MSCHAP v2, MS-CHAP, or CHAP from the drop-

down list.

h Identity: Enter the user name.

h Password: Enter the password.

h Click on the OK button to save the changes.

3.4.7 802.1x CA Server

Depending on the EAP in use, only the server or both the server and client may

be authenticated and require a certificate. Server certificates identify a server,

usually an authentication or RADIUS server to clients. Most EAPs require a

certificate issued by a root authority or a trusted commercial Certificate Authority.