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Cisco Catalyst Blade Switch 3030 Command Reference
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Chapter 2 Cisco Catalyst Blade Switch 3030 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 IEEE 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
Defaults
The default is single-host mode.
Command Modes
Interface configuration
Command History
Usage Guidelines
Use this command to limit an IEEE 802.1x-enabled port to a single client or to attach multiple clients to
an IEEE 802.1x-enabled port. In multiple-hosts mode, only one of the attached hosts needs to 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.
Examples
This example shows how to enable IEEE 802.1x authentication globally, to enable IEEE 802.1x
authentication on a port, and to enable multiple-hosts mode:
Switch(config)#
dot1x system-auth-control
Switch(config)#
interface gigabitethernet0/1
Switch(config-if)#
dot1x port-control auto
Switch(config-if)#
dot1x host-mode multi-host
You can verify your settings by entering the
show dot1x
[
interface
interface-id
] privileged EXEC
command.
Related Commands
multi-host
Enable multiple-hosts mode on the switch.
single-host
Enable single-host mode on the switch.
Release
Modification
12.2(25)SEE
This command was introduced.
Command
Description
show dot1x
[
interface
interface-id
]
Displays IEEE 802.1x status for the specified port.
