Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
mab
mab
To enable and configure MAC authorization bypass (MAB) on a port, use the mab command in interface
configuration mode. To disable MAB, use the no form of this command.
mab [eap]
no mab [eap]
Note The mab command is totally independent of the effect of the dot1x system-auth control command.
Syntax Description
Command Default Disabled
Command Modes Interface configuration mode
Command History
Usage Guidelines When a port is configured for MAB as a fallback method, it operates in a typical dot1X method until a
configurable number of failed attempts to request the identity of the host. The authenticator learns the
MAC address of the host and uses that information to query an authentication server to see whether this
MAC address will be granted access.
Examples The following example shows how to enable MAB on a port:
Switch(config-if)# mab
Switch(config-if)#
The following example shows how to enable and configure MAB on a port:
Switch(config-if)# mab eap
Switch(config-if)#
The following example shows how to disable MAB on a port:
Switch(config-if)# no mab
Switch(config-if)#
eap (Optional) Specifies that a full EAP conversation should be used, as opposed to
standard RADIUS Access-Request, Access-Accept conversation.
Release Modification
12.2(50)SG Support for this command was introduced.

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