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CCNP Security SISAS 300-208 Official Cert Guide by Kevin Redmon, Aaron Woland

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EAP Types

There are many EAP types, and each one has its own benefit and downside. The EAP type defines the authentication mechanism to be used with EAP, which is usually self-evident in its name. Most of EAP types are not discussed in this book, due to lack of adoption or lack of inclusion in the exam blueprint, such as EAP-Kerberos.

The EAP types can be broken down into two categories: native EAP types and tunneled EAP types. A tunneled EAP type simply uses a nontunneled EAP inside a Transport Layer Security (TLS) tunnel between the supplicant and the authenticator. See Figures 4-3 and 4-4 for a graphical representation of native and tunneled EAPs.

Figure 4-3 Native EAP methods.

Figure 4-4 Tunneled EAP methods.

Native EAP Types (Nontunneled ...

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