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Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
Chapter 40 Configuring 802.1X Port-Based Authentication Configuring 802.1X Port-Based Authentication
This example shows how to set the retransmission time to 60 seconds:
Cisco IOS Release 12.2(50)SG and later
Switch# configure terminal
Switch(config)# interface fastethernet5/9
Switch(config-if)# switchport mode access
Switch(config-if)# dot1x pae authenticator
Switch(config-if)# dot1x timeout tx-period 60
Switch(config-if)# authentication port-control auto
Switch(config-if)# end
Switch#
Cisco IOS Release 12.2(46)SG or earlier
Switch# configure terminal
Switch(config)# interface fastethernet5/9
Switch(config-if)# switchport mode access
Switch(config-if)# dot1x pae authenticator
Switch(config-if)# dot1x timeout tx-period 60
Switch(config-if)# dot1x port-control auto
Switch(config-if)# end
Switch#
Setting the Switch-to-Client Frame-Retransmission Number
In addition to changing the switch-to-client retransmission times, you can change the number of times
that the switch sends EAP-Request/Identity and other EAP-Request frames to the client before restarting
the authentication process. The number of EAP-Request/Identity retransmissions is controlled by the
dot1x max-reauth-req command; the number of retransmissions for other EAP-Request frames is
controlled by the dot1x max-req command.
Note You should change the default values of these commands only to adjust for unusual circumstances such
as unreliable links or specific behavioral problems with certain clients and authentication servers.
Step 6 Cisco IOS Release 12.2(50)SG and later
Switch(config-if)# authentication
port-control auto
Cisco IOS Release 12.2(46)SG or earlier
releases
Switch(config-if)# dot1x
port-control auto
Enables 802.1X authentication on the interface.
Step 7 Switch(config-if)# end Returns to privileged EXEC mode.
Step 8 Switch# show dot1x all Verifies your entries.
Step 9 Switch# copy running-config
startup-config (Optional) Saves your entries in the configuration file.
Command Purpose