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124 | 802.1X
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When the host mode is changed on a port that is already authenticated:
• Single-host to Multi-host: all devices attached to the port that were previously blocked may access
the network; the supplicant does not re-authenticate.
• Multi-host to Single-host: the port restarts the authentication process, and the first end-user to
respond is authenticated and allowed access.
Task Command Syntax Command Mode
Configure Multi-host Authentication mode on a port.
Enter
no dot1x host-mode to return to Single-host
mode.
dot1x host-mode multi-host
Default: Single-host mode
INTERFACE
FTOS(conf-if-gi-2/1)#dot1x port-control force-authorized
FTOS(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: Disable
Untagged VLAN id: None
Guest VLAN: Enable
Guest VLAN id: 200
Auth-Fail VLAN: Enable
Auth-Fail VLAN id: 100
Auth-Fail Max-Attempts: 5
Tx Period: 90 seconds
Quiet Period: 120 seconds
ReAuth Max: 10
Supplicant Timeout: 15 seconds
Server Timeout: 15 seconds
Re-Auth Interval: 7200 seconds
Max-EAP-Req: 10
Host Mode: MULTI_HOST
Auth PAE State: Initialize
Backend State: Initialize