Cisco Catalyst 4500 Series Administration Guide

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Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 46 Configuring 802.1X Port-Based Authentication
Configuring 802.1X Port-Based Authentication
Cisco IOS Release 12.2(46)SG or earlier
Switch# configure terminal
Switch(config)# interface gigabitEthernet3/1
Switch(config-if)# switchport mode access
Switch(config-if)# dot1x port-control auto
Switch(config-if)# dot1x auth-fail vlan 40
Switch(config-if)# dot1x auth-fail max-attempts 3
Switch# show dot1x all
Sysauthcontrol Enabled
Dot1x Protocol Version 2
Critical Recovery Delay 100
Critical EAPOL Disabled
Dot1x Info for GigabitEthernet3/1
-----------------------------------
PAE = AUTHENTICATOR
PortControl = AUTO
ControlDirection = Both
HostMode = SINGLE_HOST
ReAuthentication = Disabled
QuietPeriod = 60
ServerTimeout = 0
SuppTimeout = 30
ReAuthPeriod = 3600 (Locally configured)
ReAuthMax = 2
MaxReq = 2
TxPeriod = 5
RateLimitPeriod = 0
Auth-Fail-Vlan = 40
Auth-Fail-Max-attempts = 3
Switch#
Configuring 802.1X with Voice VLAN
Note You must configure 802.1X and voice VLAN simultaneously.
Note You cannot configure an authentication-failed VLAN and a voice VLAN on the same port. When you
try to configure these two features on the same port, a syslog message appears.
To enable 802.1X with voice VLAN, perform this task:
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# interface
interface-id
Enters interface configuration mode.
Step 3
Switch(config-if)# switchport
access vlan vlan-id
Sets the VLAN for a switched interface in access mode.
Step 4
Switch(config-if)# switchport mode
access
Specifies a nontrunking, nontagged single VLAN Layer 2 interface.
Step 5
Switch(config-if)# switchport voice
vlan vlan-id
Sets the voice VLAN for the interface.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E