478 | Securityw w w . d e l l . c o m | s u p p o r t . d e l l . c o m Enable AAA AuthenticationTo enable AAA authentication, use the following command in CONFIGURATION mode:If you do not set the default list, only the local enable is checked. This has the same effect as issuing theaaa authentication enable default enable command.AAA Authentication—RADIUSTo enable authentication from the RADIUS server, and use TACACS as a backup, use the followingcommands:To get enable authentication from the RADIUS server, and use TACACS as a backup, use the followingcommands:Command Syntax Command Mode Purposeaaa authentication enable {method-list-name| default} method1 [... method4]CONFIGURATION • default—Uses the listed authenticationmethods that follows this argument as thedefault list of methods when a user logs in.• method-list-name—Character string used toname the list of enable authentication methodsactivated when a user logs in.• method1 [... method4]—Any of the following:RADIUS, TACACS, enable, line, none.Step Command Syntax Command Mode Purpose1 aaa authentication enable default radiustacacsCONFIGURATION To enable RADIUS and to set up TACACSas backup.2 radius-server host x.x.x.x keysome-passwordCONFIGURATION To establish host address and password.3 tacacs-server host x.x.x.x keysome-passwordCONFIGURATION To establish host address and password.FTOS(conf)# aaa authentication enable default radius tacacsRadius and TACACS server has to be properly setup for this.FTOS(conf)# radius-server host x.x.x.x key FTOS(conf)# tacacs-server host x.x.x.x key
