9-44
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
OL-12247-04
Chapter 9 Configuring IEEE 802.1x Port-Based Authentication
Configuring 802.1x Authentication
To disable periodic re-authentication, use the
no authentication periodic
or the
no
dot1x
reauthentication
interface configuration command. To return to the default number of seconds between
re-authentication attempts, use the
no authentication timer
or the
no
dot1x timeout reauth-period
interface configuration command.
This example shows how to enable periodic re-authentication and set the number of seconds between
re-authentication attempts to 4000:
Switch(config-if)#
dot1x reauthentication
Switch(config-if)#
dot1x timeout reauth-period 4000
Manually Re-Authenticating a Client Connected to a Port
You can manually re-authenticate the client connected to a specific port at any time by entering the
dot1x
re-authenticate interface
interface-id
privileged EXEC command. This step is optional. If you want to
enable or disable periodic re-authentication, see the
“Configuring Periodic Re-Authentication” section
.
This example shows how to manually re-authenticate the client connected to a port:
Switch#
dot1x re-authenticate interface gigabitethernet2/0/1
Step 4
authentication timer
{{[
inactivity
|
reauthenticate
] [
server
|
am
]} {
restart
value
}}
or
dot1x timeout reauth-period
{
seconds
|
server
}
Set the number of seconds between re-authentication attempts.
The
authentication timer
keywords have these meanings:
•
inactivity
—Interval in seconds after which if there is no activity from
the client then it is unauthorized
•
reauthenticate
—Time in seconds after which an automatic
re-authentication attempt is be initiated
•
server
am
—Interval in seconds after which an attempt is made to
authenticate an unauthorized port
•
restart
value
—Interval in seconds after which an attempt is made to
authenticate an unauthorized port
The dot1x timeout reauth-period keywords have these meanings:
•
seconds
—Sets the number of seconds from 1 to 65535; the default is
3600 seconds.
•
server
—Sets the number of seconds based on the value of the
Session-Timeout RADIUS attribute (Attribute[27]) and the
Termination-Action RADIUS attribute (Attribute [29]).
This command affects the behavior of the switch only if periodic
re-authentication is enabled.
Step 5
end
Return to privileged EXEC mode.
Step 6
show authentication
interface-id
or
show dot1x interface
interface-id
Verify your entries.
Step 7
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
