Brocade FastIron Ethernet Switch Security Configuration Guide User Manual
Page 52
Authentication method values (Continued)
TABLE 3
Method parameter Description
none
Do not use any authentication method. The device automatically permits access.
NOTE
For examples of how to define authentication-method lists for types of authentication other than
TACACS/TACACS+, refer to
on page 75.
Entering privileged EXEC mode after a Telnet or SSH login
By default, a user enters User EXEC mode after a successful login through Telnet or SSH. Optionally,
you can configure the device so that a user enters Privileged EXEC mode after a Telnet or SSH login.
To do this, use the following command.
device(config)#aaa authentication login privilege-mode
Syntax: aaa authentication login privilege-mode
The user privilege level is based on the privilege level granted during login.
Configuring enable authentication to prompt for password only
If Enable authentication is configured on the device, when a user attempts to gain Super User access
to the Privileged EXEC and CONFIG levels of the CLI, by default he or she is prompted for a
username and password. You can configure the Brocade device to prompt only for a password. The
device uses the username entered at login, if one is available. If no username was entered at login,
the device prompts for both username and password.
To configure the Brocade device to prompt only for a password when a user attempts to gain Super
User access to the Privileged EXEC and CONFIG levels of the CLI.
device(config)#aaa authentication enable implicit-user
Syntax: [no] aaa authentication enable implicit-user
Telnet and SSH prompts when the TACACS+ Server is unavailable
When TACACS+ is the first method in the authentication method list, the device displays the login
prompt received from the TACACS+ server. If a user attempts to login through Telnet or SSH, but
none of the configured TACACS+ servers are available, the following takes place:
• If the next method in the authentication method list is "enable", the login prompt is skipped, and the
user is prompted for the Enable password (that is, the password configured with the enable super-
user-password command).
• If the next method in the authentication method list is "line", the login prompt is skipped, and the
user is prompted for the Line password (that is, the password configured with the enable telnet
password command).
Entering privileged EXEC mode after a Telnet or SSH login
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FastIron Ethernet Switch Security Configuration Guide
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