D-Link DES-3018 - Manual (Page 158)

DES-3010F/DES-3010FL/DES-3010G/DES-3016/DES-3018/DES-3026 Fast Ethernet Switch Manual
145
MAC-Based Network Access Control
802.1X
Client
Network access controlled port
Network access uncontrolled port
RADIUS
Server
Ethernet Switch
802.1X
Client
802.1X
Client
802.1X
Client
802.1X
Client
802.1X
Client
802.1X
Client
802.1X
Client
802.1X
Client
802.1X
Client
802.1X
Client
802.1X
Client
…
Figure 10- 11. Example of Typical MAC-Based Configuration
In order to successfully make use of 802.1X in a shared media LAN segment, it would be necessary to
create “logical” Ports, one for each attached device that required access to the LAN. The Switch would
regard the single physical Port connecting it to the shared media segment as consisting of a number of
distinct logical Ports, each logical Port being independently controlled from the point of view of EAPOL
exchanges and authorization state. The Switch learns each attached devices’ individual MAC addresses, and
effectively creates a logical Port that the attached device can then use to communicate with the LAN via the
Switch.