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Catalyst 3750 Metro Switch Command Reference
OL-9645-10
Chapter 2 Catalyst 3750 Metro Switch Cisco IOS Commands
dot1x host-mode
dot1x host-mode
Use the dot1x host-mode interface configuration command to allow a single host (client) or multiple
hosts on an 802.1x-authorized port that has the dot1x port-control interface configuration command set
to auto. Use the no form of this command to return to the default setting.
dot1x host-mode {multi-host | single-host}
no dot1x host-mode [multi-host | single-host]
Syntax Description
Note Although visible in the command-line interface help, the multi-domain keyword is not supported.
Command Default The default is single-host mode.
Command Modes Interface configuration
Command History
Usage Guidelines Use this command to limit an 802.1x-enabled port to a single client or to attach multiple clients to an
802.1x-enabled port. In multiple-hosts mode, only one of the attached hosts must be successfully
authorized for all hosts to be granted network access. If the port becomes unauthorized
(re-authentication fails or an Extensible Authentication Protocol over LAN [EAPOL]-logoff message is
received), all attached clients are denied access to the network.
Before entering this command, make sure that the dot1x port-control interface configuration command
is set to auto for the specified port.
The dot1x host-mode multi-domain interface configuration command is not supported on the switch.
Configuring this command on an interface causes the interface to go into the error-disabled state.
Examples This example shows how to enable 802.1x globally, enable 802.1x on a port, and enable multiple-hosts
mode:
Switch(config)# dot1x system-auth-control
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)# dot1x port-control auto
Switch(config-if)# dot1x host-mode multi-host
multi-host Enable multiple-hosts mode on the switch.
single-host Enable single-host mode on the switch.
Release Modification
12.1(14)AX This command was introduced.
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