Bedienungsanleitung Netgear GS324TP (Seite 347 von 365) (Englisch)

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S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Managed Pro Switches

Configuration Examples User Manual347

between the authenticator (the system that passes an authentication request to the

authentication server) and the supplicant (the system that requests authentication), as well

as between the authenticator and the authentication server.

The switch supports a guest VLAN, which allows unauthenticated users limited access to the

network resources.

Note: You can use QoS features to provide rate limiting on the guest VLAN

to limit the network resources that the guest VLAN provides.

Another 802.1X feature is the ability to configure a port to enable or disable EAPoL packet

forwarding support. Y

ou can disable or enable the forwarding of EAPoL when 802.1X is

disabled on the device.

The ports of an 802.1X authenticator switch provide the means by which it can offer services

to other systems reachable through the LAN. Port-based network access control allows the

operation of a switch’s ports to be controlled to ensure that access to its services is permitted

only by systems that are authorized to do so.

Port access control provides a means of preventing unauthorized access by supplicants to

the services offered by a system. Control over the access to a switch and the LAN to which it

is connected can be desirable when you restrict access to publicly accessible bridge ports or

to restrict access to departmental LANs.

Access control is achieved by enforcing authentication of supplicants that are attached to an

authenticator's controlled ports. The result of the authentication process determines whether

the supplicant is authorized to access services on that controlled port.

A port access entity (P

AE) is able to adopt one of two distinct roles within an access control

interaction:

1. Authenticator. A port that enforces authentication before allowing access to services

available through that port.

2. Supplicant. A port that attempts to access services of

fered by the authenticator.

Additionally, there exists a third role:

3. Authentication server. Performs the authentication function necessary to check the

credentials of the supplicant on behalf of the authenticator.

All three roles are required for you to complete an authentication exchange.

The switch supports the authenticator role only

, in which the PAE is responsible for

communicating with the supplicant. The authenticator P

AE is also responsible for submitting

the information received from the supplicant to the authentication server for the credentials to

be checked, which determines the authorization state of the port. The authenticator PAE

controls the authorized/unauthorized state of the controlled port depending on the outcome

of the RADIUS-based authentication process.

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