Operation Manual
119
Radius Server
Radius proxy servers are used for centralized
administration. Remote Authentication Dial In User
Service (RADIUS) is a networking protocol that
provides centralized Authentication, Authorization, and
Accounting (AAA) management for users that connect
and use a network service for greater convenience.
Radius is a server protocol that runs in the application
layer, using UDP as transport. The Network Switch
with port-based authentication and all have a Radius
client component that communicates with the Radius
server. Clients connected to a port on the Switch must
be authenticated by the Authentication Server before
accessing services offered by the Switch on the LAN.
Use a Radius server to authenticate users trying to
access a network by relaying Extensible Authentication
Protocol over LAN (EAPOL) packets between the Client
and Server. The Radius server maintains a user database,
which contains authentication information. The Switch
passesinformationtotheconguredRadiusserver,
which can authenticate a user name and password
before authorizing use of the network.