C H A P T E R 9 Configuring Ieee 802.1X Port-Based Authentication; Understanding Ieee 802.1X Port-Based Authentication - Cisco WS-CBS3032-DEL Software Configuration Manual

Understanding IEEE 802.1x Port-Based Authentication

Understanding IEEE 802.1x Port-Based Authentication
The IEEE 802.1x standard defines a client-server-based access control and authentication protocol that
prevents unauthorized clients from connecting to a LAN through publicly accessible ports unless they
are properly authenticated. The authentication server authenticates each client connected to a switch port
before making available any services offered by the switch or the LAN.
Until the client is authenticated, 802.1x access control allows only Extensible Authentication Protocol
over LAN (EAPOL), Cisco Discovery Protocol (CDP), and Spanning Tree Protocol (STP) traffic through
the port to which the client is connected. After authentication is successful, normal traffic can pass
through the port.
These sections describe 802.1x port-based authentication:
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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
9-2
Device Roles, page 9-3
Authentication Process, page 9-4
Authentication Initiation and Message Exchange, page 9-6
Authentication Manager, page 9-8
Ports in Authorized and Unauthorized States, page 9-11
802.1x Authentication and Switch Stacks, page 9-12
802.1x Host Mode, page 9-12
802.1x Multiple Authentication Mode, page 9-13
MAC Move, page 9-14
MAC Replace, page 9-14
802.1x Accounting, page 9-15
802.1x Accounting Attribute-Value Pairs, page 9-15
802.1x Readiness Check, page 9-16
802.1x Authentication with VLAN Assignment, page 9-16
802.1x Authentication with Per-User ACLs, page 9-18
802.1x Multiple Authentication Mode, page 9-13
802.1x Authentication with Guest VLAN, page 9-21
802.1x Authentication with Restricted VLAN, page 9-22
802.1x Authentication with Inaccessible Authentication Bypass, page 9-23
802.1x User Distribution, page 9-26
802.1x Authentication with Voice VLAN Ports, page 9-25
802.1x Authentication with Port Security, page 9-26
802.1x Authentication with Downloadable ACLs and Redirect URLs, page 9-19
VLAN ID-based MAC Authentication, page 9-21
802.1x Authentication with Wake-on-LAN, page 9-26
802.1x Authentication with MAC Authentication Bypass, page 9-27
Network Admission Control Layer 2 802.1x Validation, page 9-28
Multidomain Authentication, page 9-30
Chapter 9 Configuring IEEE 802.1x Port-Based Authentication
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