Netgear FS526Tv2 - 24-Port Smart Switch with Gigabit Ports ユーザーガイド

RADIUS servers provide additional security for networks. A RADIUS server maintains a user 
database, which contains per-user authentication information. The smart switch passes 
information to the configured RADIUS server, which can authenticate a user name and 
password before authorizing use of the network.

On the smart switch, RADIUS servers provide a centralized authentication method for port 
authentication (see 

Before you specify the maximum number of retransmission requests to a RADIUS server and 
the time-out duration for each request, which apply to all configured RADIUS servers, take 
the following information into consideration.

If you configure multiple RADIUS servers, the smart switch does not contact a second 
RADIUS server until the maximum number of retransmit requests has been sent to the first 
RADIUS server and the time-out duration for the last retransmit request has been exceeded. 
The total response time for an individual RADIUS server is its response time multiplied by the 
number of retransmit requests. The total response time for all RADIUS servers is the sum of 
the total response time for each individual RADIUS server. If a user login attempt generates a 
RADIUS request, all user interfaces are blocked until the RADIUS server returns a response.

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Select Security > Management Security > RADIUS > Global Configuration.

The Global Configuration screen displays.