D-Link DES-3226 manual 802.1X Port-based Network Access Control

Models: DES-3226

1 179
Download 179 pages 59.28 Kb
Page 44
Image 44

DES-3226 NWay Standalone Fast Ethernet Switch User’s Guide

Before loading TCP/IP with an address acquired from the DHCP server, DHCP clients check for an IP address conflict by sending an Address Resolution Protocol (ARP) request containing the address. If a conflict is found, TCP/IP does not start, and the user receives an error message. The conflicting address should be removed for the list of active leases or it should be excluded until the conflict is identified and resolved.

802.1X Port-based Network Access Control

The Switch is an implementation of the server side of IEEE 802.1X-Port Based Network Access Control. Through this mechanism, users have to be authorized before being able to access the network. See the following figure:

Figure 5-9. Typical 802.1X Configuration Prior to User Authentication

Once the user is authenticated, the switch unblocks the port that is connected to the user as shown in the next figure.

34

Page 44
Image 44
D-Link DES-3226 manual 802.1X Port-based Network Access Control, Typical 802.1X Configuration Prior to User Authentication