D-Link DGS-3024, Manual

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DGS-3024 Gigabit Ethernet Switch Manual
Figure 7- 55. Authenticator
Client
The Client is simply the workstation that wishes to gain access to the LAN or Switch services. All workstation must be running
software that is compliant with the 802.1x protocol. For users running Windows XP, the software is included within the operating
system. All other users are required to attain 802.1x client software from an outside 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 7- 56. Client
Authentication Process
Utilizing the three components 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 is
granted access and therefore successfully “unlocks” the port. Once unlocked, normal traffic is allowed to pass through the port.
The implementation of 802.1x allows network administrators to choose Port-Based Access Control. This method requires only
one user to be authenticated per port by a remote RADIUS server to allow the remaining users on the same port access to the
network.
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