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Keyword
Source or destination
Enable
Uses the enable password for authentication.
Line
Uses the line password for authentication
None
Uses no authentication
Radius
Uses the list of all radius servers for authentication. Uses username "$enabx$." Where
x is the privilege level
Tacacs
Uses the list of all TACACS+ servers for authentication. Uses username "$enabx$."
Where x is the privilege level.
Default Configuration
If the default list is not set, only the enable password is checked. This has the same effect as the
command aaa authentication enable default enable.
On the console, the enable password is used if it exists. If no password is set, the process still succeeds.
This has the same effect as using the command aaa authentication enable default enable none.
Command Mode
Global Configuration mode
User Guidelines
The default and optional list names created with the aaa authentication enable command are used with
the enable authentication command.
Create a list by entering the aaa authentication enable list-name method command where list-name is
any character string used to name this list. The method argument identifies the list of methods that the
authentication algorithm tries, in the given sequence.
The additional methods of authentication are used only if the previous method returns an error, not if it
fails. To ensure that the authentication succeeds even if all methods return an error, specify none as the
final method in the command line.
All aaa authentication enable default requests sent by the router to a RADIUS server include the
username
"$enabx$.", where x is the requested privilege level.
Example
The following example sets authentication when accessing higher privilege levels.
console (config) # aaa authentication enable default enable
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