Cisco Systems 3750E manual Configuring a Restricted Vlan, Switchport mode private-vlan host, 10-34

Chapter 10 Configuring IEEE 802.1x Port-Based Authentication

Configuring IEEE 802.1x Authentication

	Command	Purpose
Step 3
	switchport mode access	Set the port to access mode,
	or	or
	switchport mode private-vlan host	Configure the Layer 2 port as a private-VLAN host port.
Step 4
	dot1x port-control auto	Enable IEEE 802.1x authentication on the port.
Step 5
	dot1x guest-vlan vlan-id	Specify an active VLAN as an IEEE 802.1x guest VLAN. The range is 1
		to 4094.
		You can configure any active VLAN except an internal VLAN (routed
		port), an RSPAN VLAN, a primary private VLAN, or a voice VLAN as
		an IEEE 802.1x guest VLAN.
Step 6
	end	Return to privileged EXEC mode.
Step 7
	show dot1x interface interface-id	Verify your entries.
Step 8
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To disable and remove the guest VLAN, use the no dot1x guest-vlaninterface configuration command. The port returns to the unauthorized state.

This example shows how to enable VLAN 2 as an IEEE 802.1x guest VLAN:

Switch(config)# interface gigabitethernet2/0/2

Switch(config-if)# dot1x guest-vlan 2

This example shows how to set 3 as the quiet time on the switch, to set 15 as the number of seconds that the switch waits for a response to an EAP-request/identity frame from the client before re-sending the request, and to enable VLAN 2 as an IEEE 802.1x guest VLAN when an IEEE 802.1x port is connected to a DHCP client:

Switch(config-if)#dot1x timeout quiet-period 3

Switch(config-if)#dot1x timeout tx-period 15

Switch(config-if)# dot1x guest-vlan 2

Configuring a Restricted VLAN

When you configure a restricted VLAN on a switch stack or a switch, clients that are

IEEE 802.1x-compliant are moved into the restricted VLAN when the authentication server does not receive a valid username and password. The switch supports restricted VLANs only in single-host mode.

Beginning in privileged EXEC mode, follow these steps to configure a restricted VLAN. This procedure is optional.

	Command		Purpose
Step 1	configure terminal		Enter global configuration mode.
Step 2	interface interface-id		Specify the port to be configured, and enter interface configuration mode.
			For the supported port types, see the “IEEE 802.1x Authentication
			Configuration Guidelines” section on page 10-23.
Step 3	switchport mode access		Set the port to access mode,
	or		or
	switchport mode private-vlan host		Configure the Layer 2 port as a private-VLAN host port.
		Catalyst 3750-E and 3560-E Switch Software Configuration Guide
10-34			OL-9775-02