Vantage CNM User's Guide
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.
Table 174 Comparison of EAP Authentication Types
Mutual Authentication
Certificate – Client
Certificate – Server
Dynamic Key Exchange
Credential Integrity
Deployment Difficulty
Client Identity Protection
381
EAP-MD5
EAP-TLS
No
Yes
No
Yes
No
Yes
No
Yes
None
Strong
Easy
Hard
No
No
EAP-TTLS
PEAP
Yes
Yes
Optional
Optional
Yes
Yes
Yes
Yes
Strong
Strong
Moderate
Moderate
Yes
Yes
LEAP
Yes
No
No
Yes
Moderate
Moderate
No