D-Link D DGS-3048 DGS-3048, Руководство по эксплуатации продукта

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DGS-3048 Gigabit Ethernet Switch Manual
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Figure 10- 4. 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 10- 5. 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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