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| 9.8 |  | 802.1X Port-based Authentication |
| 9.8.6 |  | Configuring 802.1X port-based authentication |

To enable 802.1X port-based authentication, AAA must be enabled. An authentication method list must also be specified. Recall that a method list describes the sequence and authentication methods to be queried to authenticate a user.

The software uses the first method listed to authenticate users. If that method fails to respond, the software selects the next authentication method in the method list. This process continues until there is successful communication with a listed authentication method or until all defined methods are exhausted. If authentication fails at any point in this cycle, the authentication process stops, and no other authentication methods are attempted.

Beginning in privileged EXEC mode, follow the steps shown in Figure to configure 802.1X port-based authentication.