H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – 802.1x - MAC Authentication
H3C S7500E Series Ethernet Switches Chapter 1 802.1x Configuration
1-1
Chapter 1 802.1x Configuration
When configuring 802.1x, go to these sections for information you are interested in:
z 802.1x Overview
z Configuring 802.1x
z Configuring a Guest VLAN
z Displaying and Maintaining 802.1x
z 802.1x Configuration Example
z Guest VLAN Configuration Example
z ACL Assigning Configuration Example
1.1 802.1x Overview
The 802.1x protocol was proposed by IEEE802 LAN/WAN committee for security
problems on wireless LANs (WLAN). Currently, it is widely used on Ethernet as a
common port access control mechanism.
As a port-based network access control protocol, 802.1x authenticates and controls
accessing devices at the level of port. A device connected to an 802.1x-enabled port of
an access control device can access the resources on the LAN only after passing
authentication.
To get more information about 802.1x, go to these topics:
z Architecture of 802.1x
z Operation of 802.1x
z EAP Encapsulation over LANs
z EAP Encapsulation over RADIUS
z Authentication Process of 802.1x
z 802.1x Timers
z Implementation of 802.1x in the Devices
z Features Working Together with 802.1x
1.1.1 Architecture of 802.1x
802.1x operates in the typical client/server model and defines three entities: supplicant
system, authenticator system, and authentication server system, as shown in
Figure
1-1.