Reference Guide

90 | 802.1X
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Re-authenticating a Port
Periodic Re-authentication
After the supplicant has been authenticated, and the port has been authorized, the authenticator can be
configured to re-authenticates the supplicant periodically. If re-authentication is enabled, the supplicant is
required to re-authenticate every 3600 seconds, but this interval can be configured. A maximum number of
re-authentications can be configured as well.
To configure a re-authentication or a re-authentication period:
To configure a maximum number of re-authentications:
Figure 6-9. Configuring a Reauthentiction Period
Step Task Command Syntax Command Mode
1 Configure the authenticator to
periodically re-authenticate the
supplicant.
dot1x reauthentication [interval] seconds
Range: 1-65535
Default: 60
INTERFACE
Step Task Command Syntax Command Mode
1 Configure the maximum number of
times that the supplicant can be
reauthenticated.
dot1x reauth-max number
Range: 1-10
Default: 2
INTERFACE
Force10(conf-if-gi-2/1)#dot1x reauthentication interval 7200
Force10(conf-if-gi-2/1)#dot1x reauth-max 10
Force10(conf-if-gi-2/1)#do show dot1x interface gigabitethernet 2/1
802.1x information on Gi 2/1:
-----------------------------
Dot1x Status: Enable
Port Control: FORCE_AUTHORIZED
Port Auth Status: UNAUTHORIZED
Re-Authentication: Enable
Untagged VLAN id: None
Tx Period: 90 seconds
Quiet Period: 120 seconds
ReAuth Max: 10
Supplicant Timeout: 30 seconds
Server Timeout: 30 seconds
Re-Auth Interval: 7200 seconds
Max-EAP-Req: 10
Auth Type: SINGLE_HOST
Auth PAE State: Initialize
Backend State: Initialize
Auth PAE State: Initialize
Re-authentication
New Re-authentication
New Maximum