Cisco Catalyst 2960 Software Configuration Manual page 315

Chapter 10 Configuring IEEE 802.1x Port-Based Authentication
Configuring 802.1x Authentication
To disable multiple hosts on the port, use the no authentication host-mode interface configuration
command.
This example shows how to enable 802.1x authentication and to allow multiple hosts:
Switch(config)# interface gigabitethernet2/0/1
Switch(config-if)# authentication port-control auto
Switch(config-if)# authentication host-mode multi-host
Switch(config-if)# end
This example shows how to enable MDA and to allow both a host and a voice device on the port:
Switch(config)# interface gigabitethernet2/0/1
Switch(config-if)# authentication port-control auto
Switch(config-if)# authentication host-mode multi-domain
Switch(config-if)# switchport voice vlan 101
Switch(config-if)# end
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
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