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8.2 Configuring Radius
RADIUS (Remote Authentication Dial-In User Service) is a common protocol to realize AAA
(Authentication, Authorization and Accounting).RADIUS is an information interaction protocol of
distributed and C/S construction. It can protect the network from unauthorized visits. It is used in the
network that allows remote visits but requests the higher security. It defines the RADIUS packet
format and the message transmission mechanism. It stipulates that using UDP as transport layer
protocol to encapsulate the RADIUS packet.
At the beginning, RADIUS is the AAA protocol for the dial-up users only. With the development of
the user accesses, RADIUS adapts to various access, including Ethernet access and ADSL access. It
accesses server through authentication and authorization, and collects records the usage of network
source through accounting.
Step 1
Select
Authentication
>
RADIUS
.
Step 2
Click
Add
.
Step 3
Set the
IP Address
,
port
, and
key
.
Step 4
Click
OK
.