Installation guide

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
How to Configure EtherSwitch HWICs
22
Cisco IOS Release 12.3(8)T4
OL-6454-01
Enabling Periodic Reauthentication
You can enable periodic 802.1x client reauthentication and specify how often it occurs. If you do not
specify a time period before enabling reauthentication, the number of seconds between reauthentication
attempts is 3600 seconds.
Automatic 802.1x client reauthentication is a global setting and cannot be set for clients connected to
individual ports.
Beginning in privileged EXEC mode, follow these steps to enable periodic reauthentication of the client
and to configure the number of seconds between reauthentication attempts:
SUMMARY STEPS
1. configure terminal
2. dot1x re-authentication
3. dot1x timeout re-authperiod seconds
4. end
5. show dot1x
6. copy running-config startup-config
DETAILED STEPS
To disable periodic reauthentication, use the no dot1x re-authentication global configuration
command. To return to the default number of seconds between reauthentication attempts, use the no
dot1x timeout re-authperiod global configuration command.
Changing the Quiet Period
When the switch cannot authenticate the client, the switch remains idle for a set period of time, and then
tries again. The idle time is determined by the quiet-period value. A failed authentication of the client
might occur because the client provided an invalid password. You can provide a faster response time to
the user by entering smaller number than the default.
Command Purpose
Step 1
configure terminal
Enters global configuration mode.
Step 2
dot1x re-authentication
Enables periodic reauthentication of the client, which is disabled by
default.
Step 3
dot1x timeout re-authperiod seconds
Sets the number of seconds between reauthentication attempts.
The range is 1 to 4294967295; the default is 3600 seconds.
This command affects the behavior of the switch only if periodic
reauthentication is enabled.
Step 4
end
Returns to privileged EXEC mode.
Step 5
show dot1x
Verifies your entries.
Step 6
copy running-config startup-config
(Optional) Saves your entries in the configuration file.