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Cisco Catalyst 4500 Series Administration Guide

Cisco Catalyst 4500 Series
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46-91
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
Switch(config)# interface GigabitEthernet5/23
Switch(config-if)# switchport mode access
Switch(config-if)# spanning-tree portfast
Switch(config-if)# dot1x pae authenticator
Switch(config-if)# authentication port-control auto
Cisco AV Pair Configuration
Next, you need to configure a Cisco AV pair value.
Log into ACS, and Select/Create a User. Go to User Setup and scroll down to the [009\001]
cisco-av-pair Tab. Enter device-traffic-class=switch (Figure 46-17).
Figure 46-17 Specifying the Cisco AV Pair
Starting with Cisco IOS XE Release 3.2.0 SG (15.0(2)SG) the spanning-tree bpduguard feature is
automatically disabled or enabled as part of a macro provided it was previously enabled in the port
configuration. If the configuration did not have BPDU Guard enabled before the supplicant switch was
authenticated, the spanning-tree bpduguard feature is not applied to the macro.
Note Disabling spanning-tree bpduguard happens only if it was previously enabled through the port level
command. Enabling it globally without a specific port level CLI prevents NEAT from disabling it on the
port after the authenticator switch receives a device-traffic-class=switch AV Pair and applies the macro.
There are 2 scenarios:
Scenario 1: With Port Level BPDU Guard Configuration
Before Authorization

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Cisco Catalyst 4500 Series Specifications

General IconGeneral
SeriesCatalyst 4500 Series
CategorySwitch
Layer SupportLayer 2, Layer 3
Form FactorModular chassis
StackableNo
Chassis Slots3, 6, 7, 10
Power Supply OptionsAC, DC
RedundancyPower supply, Supervisor engine
Network ManagementCisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
FeaturesSecurity, QoS
Port DensityUp to 384 ports per chassis
Security Features802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine8-E

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