Introduction to 802.1x······························································································································1-1

Architecture of 802.1x Authentication······························································································1-1

The Mechanism of an 802.1x Authentication System ·····································································1-2

Encapsulation of EAPoL Messages ································································································1-3

802.1x Authentication Procedure ····································································································1-5

Timers Used in 802.1x·····················································································································1-8

802.1x Implementation on an S4210 Series Switch········································································1-9

Introduction to 802.1x Configuration ·····································································································1-12

Basic 802.1x Configuration ···················································································································1-12

Configuration Prerequisites ···········································································································1-12

Configuring Basic 802.1x Functions······························································································1-13

Timer and Maximum User Number Configuration·········································································1-14

Advanced 802.1x Configuration············································································································1-15

Specifying a Mandatory Authentication Domain for a Port····························································1-15

Configuring Proxy Checking··········································································································1-17

Configuring Client Version Checking·····························································································1-17

Enabling DHCP-triggered Authentication ······················································································1-18

Configuring Guest VLAN ···············································································································1-18

Configuring 802.1x Re-Authentication···························································································1-19

Configuring the 802.1x Re-Authentication Timer ··········································································1-19

Displaying and Debugging 802.1x ········································································································1-20

Configuration Example··························································································································1-20

802.1x Configuration Example ······································································································1-20

802.1X Mandatory Authentication Domain Configuration Example ··············································1-23

2 HABP Configuration ··································································································································2-1

Introduction to HABP·······························································································································2-1

HABP Server Configuration ····················································································································2-1

HABP Client Configuration······················································································································2-2

Displaying HABP·····································································································································2-2

3 System-Guard Configuration ···················································································································3-1

System-Guard Overview ·························································································································3-1

Configuring the System-Guard Feature ··································································································3-1

Configuring the System-Guard Feature ··························································································3-1

Displaying and Maintaining System-Guard·····························································································3-2

Table of Contents