Cisco CRS User Manual page 24

aaa authentication
Command History
Release
Release 2.0
Release 3.3.0
Usage Guidelines
Use the aaa authentication command to create a series of authentication methods, or method list. You can
specify up to four methods in the method list. A method list is a named list describing the authentication
methods (such as TACACS+ or RADIUS) in sequence. The subsequent methods of authentication are used
only if the initial method is not available, not if it fails.
The default method list is applied for all interfaces for authentication, except when a different named method
list is explicitly specified—in which case the explicitly specified method list overrides the default list.
For console and vty access, if no authentication is configured, a default of local method is applied.
• The group tacacs+, group radius, and group group-name forms of this command refer to a set of
Note
• Use the tacacs-server host or radius-server host command to configure the host servers.
• Use the aaa group server tacacs+ or aaa group server radius command to create a named subset
• The login keyword, remote keyword, local option, and group option are available only in
Task ID
Task ID
aaa
Examples The following example shows how to specify the default method list for authentication, and also enable
authentication for console in global configuration mode:
RP/0/RP0/CPU0:router# configure
RP/0/RP0/CPU0:router(config)# aaa authentication login default group tacacs+
The following example shows how to specify the remote method list for authentication, and also enable
authentication for console in administration configuration mode:
RP/0/RP0/CPU0:router# admin
RP/0/RP0/CPU0:router (admin)# configure
RP/0/RP0/CPU0:router(admin-config)# aaa authentication login remote local group tacacs+
Cisco IOS XR System Security Command Reference for the Cisco CRS Router, Release 4.1
14
previously defined TACACS+ or RADIUS servers.
of servers.
administration configuration mode.
Authentication, Authorization, and Accounting Commands
Modification
This command was introduced.
The method-list argument was added to specify either group tacacs+
, group radius, group named-group, local, or line options.
Operations
read, write
OL-24740-01