US Robotics USR2450 Informations techniques télécharger pdf (Page 45)

V 2.2 Copyright SystemExperts 2001,2002,2003

ESN: The Wireless Security Future?

n Defined in the 802.11 Security Baseline

n Depends on 802.1X

n Protocol definitions between client and bridge and bridge and

authentication server

n Provides

n Enhanced authentication

n Key management algorithms

n Dynamic, association-specific WEP keys

n Open authentication method

n Looks like many vendors are using RADIUS

n Uses EAP encapsulated in 802.11b Frames

n EAP is defined in RFC 2284

V 2.2 Copyright SystemExperts 2001,2002,2003

Wireless EAP: Cisco’s Version

n Lightweight EAP (LEAP)

n EAP Type 17: EAP-Cisco Wireless

n Based on EAP and IEEE 802.1X

n Provides authentication service for clients

whose host OSs do not support EAP

n LEAP distinguishes between authentication

provided by the client firmware from that provided

by the host OS

n Backend RADIUS server

(Access Control Server 2000 V2.6)

n Uses MS-CHAP as Authentication Protocol

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US Robotics USR2450 Informations techniques Page 45