Zyxel-communications 662HW Series Uživatelský manuál stáhnout pdf (Strana 493)

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Prestige 662H/HW Series User’s Guide

493 Appendix I Types of EAP Authentication

PEAP (Protected EAP)

Like EAP-TTLS, server-side certificate authentication is used to establish a secure connection,

then use simple username and password methods through the secured connection to

authenticate the clients, thus hiding client identity. However, PEAP only supports EAP

methods, such as EAP-MD5, EAP-MSCHAPv2 and EAP-GTC (EAP-Generic Token Card),

for client authentication. EAP-GTC is implemented only by Cisco.

LEAP

LEAP (Lightweight Extensible Authentication Protocol) is a Cisco implementation of

IEEE802.1x.

For added security, certificate-based authentications (EAP-TLS, EAP-TTLS and PEAP) use

dynamic keys for data encryption. They are often deployed in corporate environments, but for

public deployment, a simple user name and password pair is more practical. The following

table is a comparison of the features of five authentication types.

Table 16 Comparison of EAP Authentication Types

EAP-MD5 EAP-TLS EAP-TTLS PEAP LEAP

Mutual Authentication No Yes Yes Yes Yes

Certificate – Client No Yes Optional Optional No

Certificate – Server No Yes Yes Yes No

Dynamic Key Exchange No Yes Yes Ye s Yes

Credential Integrity None Strong Strong Strong Moderate

Deployment Difficulty Easy Hard Moderate Moderate Moderate

Client Identity Protection No No Yes Yes No

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