Operation Manual – 802.1x-HABP-MAC AuthenticationH3C S5500-EI Series Ethernet Switches Chapter 1 802.1x Configuration1-1Chapter 1 802.1x ConfigurationWhen configuring 802.1x, go to these sections for information you are interested in:z 802.1x Overviewz Configuring 802.1xz Configuring a Guest VLANz Displaying and Maintaining 802.1xz 802.1x Configuration Examplez Guest VLAN Configuration Examplez ACL Assignment Configuration Example1.1 802.1x OverviewThe 802.1x protocol was proposed by IEEE 802 LAN/WAN committee for securityproblems on wireless LANs (WLAN). Currently, it is widely used on Ethernet as acommon port access control mechanism.As a port-based network access control protocol, 802.1x authenticates and controlsaccessing devices at the level of port. A device connected to an 802.1x-enabled port ofan access control device can access the resources on the LAN only after passingauthentication.To get more information about 802.1x, go to these topics:z Architecture of 802.1xz Operation of 802.1xz EAP Encapsulation over LANsz EAP Encapsulation over RADIUSz Authentication Process of 802.1xz 802.1x Timersz Implementation of 802.1x in the Devicesz Features Working Together with 802.1x1.1.1 Architecture of 802.1x802.1x operates in the typical client/server model and defines three entities: supplicantsystem, authenticator system, and authentication server system, as shown in Figure1-1.
