Netgear GS728TS(B) – ProSAFE 24-Port Gigabit Stackable Smart Switch with 4 SFP uplinks Software Guide

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GS728TS, GS728TPS, GS752TS, and GS752TPS Gigabit Smart Switches
The GS728TS, GS728TPS, GS752TS, and GS752TPS switches support a guest VLAN, 
which allows unauthenticated users to have 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 the guest VLAN provides.
Another 802.1X feature is the ability to configure a port to Enable/Disable EAPoL packet 
forwarding support.You 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 in which it can offer services 
to other systems reachable via the LAN. Port-based network access control allows the 
operation of a switch’s ports to be controlled in order to ensure that access to its services is 
only permitted 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 in order to 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 (PAE) 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 via that Port.
2. 
Supplicant: A Port that attempts to access services offered 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 in order to complete an authentication exchange.
The GS728TS, GS728TPS, GS752TS, and GS752TPS switches support the Authenticator 
role only, in which the PAE is responsible for communicating with the Supplicant. The 
Authenticator PAE is also responsible for submitting the information received from the 
Supplicant to the Authentication Server in order for the credentials to be checked, which will 
determine 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.