3Com 3CRUS2475 Command Reference Manual page 31

list-name — Character string used to name the list of authentication
■
methods activated, when using access higher privilege levels. (Range:
1-12 characters)
method1 [method2...] — Specify at least one method from the
■
following list:
Keyword Description
enableT 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.
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 device to a
RADIUS or TACACS+ server include the username $enabx$., where x is
the requested privilege level.
Example
aaa authentication enable
I
31