D-Link DMS-3130 User Manual - Page 338

DMS-3130 Series Multi-Gigabit L3 Stackable Managed Switch Web UI Reference Guide source. The Client will request access to the LAN and or Switch through EAPOL packets and, in turn will respond to requests from the Switch. Figure 9-8 The Client Authentication Process Utilizing the three roles stated above, the 802.1X protocol provides a stable and secure way of authorizing and authenticating users attempting to access the network. Only EAPOL traffic is allowed to pass through the specified port before a successful authentication is made. This port is "locked" until the point when a Client with the correct username and password (and MAC address if 802.1X is enabled by MAC address) is granted access and therefore successfully "unlocks" the port. Once the port is unlocked, normal traffic is allowed to pass through the port. The following figure displays a more detailed explanation of how the authentication process is completed between the three roles stated above. Figure 9-9 The 802.1X Authentication Process The D-Link implementation of 802.1X allows network administrators to choose between two types of Access Control used on the Switch, which are: 327