Cisco TrustSec User Manual

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Cisco TrustSec Configuration Guide
OL-22192-01
Chapter 6 Configuring Endpoint Admission Control
MAC Authentication Bypass Configuration
-------------------------------
Supplicant = 000c.293a.048e
Session ID = AC1AD01F0000000904BBECD8
Auth SM State = AUTHENTICATED
Auth BEND SM State = IDLE
Port Status = AUTHORIZED
MAC Authentication Bypass Configuration
MAC Authentication Bypass (MAB) enables hosts or clients that are not 802.1X capable to join
802.1X-enabled networks. It is not required to enable 802.1X authentication prior to enabling MAB.
The following example is a basic MAB configuration on a Catalyst switch:
switch(config)# interface GigabitEthernet2/1
switch(config-if)# authentication port-control auto
switch(config-if)# mab
For additional information on configuring MAB authentication, see the configuration guide for your
access switch.
Verifying the MAB Configuration
To verify the MAC Authentication Bypass configuration, use the show authentication interface
command.
switch# show authentication interface gigabitEthernet 2/1
Client list:
Interface MAC Address Domain Status Session ID
Gi2/1 000c.293a.048e DATA Authz Success AC1AD01F0000000A04CD41AC
Available methods list:
Handle Priority Name
2 1 mab
Runnable methods list:
Handle Priority Name
2 0 mab
To verify that the port has successfully authenticated, use the show mab interface command.
switch# show mab interface gigabitEthernet 2/1 details
MAB details for GigabitEthernet2/1
-------------------------------------
Mac-Auth-Bypass = Enabled
MAB Client List
---------------
Client MAC = 000c.293a.048e
Session ID = AC1AD01F0000000A04CD41AC
MAB SM state = ACQUIRING
Auth Status = UNAUTHORIZED

Cisco TrustSec Specifications

General

Category	Network Security
Functionality	Provides role-based access control, network segmentation, and policy enforcement.
Key Components	Security Group Tags (SGT), Security Exchange Protocol (SXP).
Authentication Methods	802.1X, MAC Authentication Bypass (MAB), Web Authentication
Security Group Tagging (SGT)	Assigns security group tags to users and devices for identity-based segmentation.
Security Exchange Protocol (SXP)	A protocol used to propagate SGT information across network devices.
Policy Enforcement	Enforces security policies based on SGTs and SGACLs.
Benefits	Enhanced security, simplified policy management, and improved compliance.
Encryption	Supports encryption for data in transit through IPsec and MACsec.
Scalability	Scalable to large enterprise networks with thousands of devices.
Compatibility	Compatible with a wide range of Cisco network devices.
Description	Cisco TrustSec is a security architecture framework designed to build secure networks. It uses identity-based access control to segment the network and enforce policies based on user roles and device types, rather than relying solely on IP addresses.