49-62
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 49 Configuring 802.1X Port-Based Authentication
Configuring 802.1X Port-Based Authentication
Cisco IOS Release 12.2(46)SG or earlier
Switch# configure terminal
Switch(config)# interface gigabitethernet3/3
Switch(config-if)# switchport mode access
Switch(config-if)# dot1x pae authenticator
Switch(config-if)# dot1x port-control auto
Switch(config-if)# dot1x mac-auth-bypass
Switch(config-if)# end
Switch# show dot1x int g3/3 details
Dot1x Info for GigabitEthernet3/3
-----------------------------------
PAE = AUTHENTICATOR
PortControl = AUTO
ControlDirection = Both
HostMode = SINGLE_HOST
ReAuthentication = Disabled
QuietPeriod = 60
ServerTimeout = 30
SuppTimeout = 30
ReAuthPeriod = 3600 (Locally configured)
ReAuthMax = 2
MaxReq = 2
TxPeriod = 1
RateLimitPeriod = 0
Mac-Auth-Bypass = Enabled
Dot1x Authenticator Client List
-------------------------------
Supplicant = 0000.0000.0001
Auth SM State = AUTHENTICATED
Auth BEND SM Stat = IDLE
Port Status = AUTHORIZED
Authentication Method = MAB
Authorized By = Authentication Server
Vlan Policy = N/A
Switch#
Configuring 802.1X with Inaccessible Authentication Bypass
Caution You must configure the switch to monitor the state of the RADIUS server as described in the section
Configuring Switch-to-RADIUS-Server Communication, page 49-32 for Inaccessible Authentication
Bypass to work properly. Specifically, you must configure the RADIUS test username, idle-time,
deadtime and dead-criteria. Failure to do so results in the switch failing to detect that the RADIUS server
has gone down, or prematurely marking a dead RADIUS server as alive again.
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