Nokia A032 사용자 설명서

Nokia A032 Addendum

Radius is a simple authentication protocol for 
remote clients. The name Radius comes from 
the words Remote Authentication Dial In User 
Service. The Radius protocol has traditionally 
been used in modem pools but nowadays its 
use has been expanded to include firewall 
authentication, amongst other things. The AP 
implementation of Radius widens the scope of 
the protocol to include Wireless LAN clients 
and the provision the key exchange as part of 
authentication scheme.

The basic characteristics and assumptions are 
following:

•

Radius is simple protocol where all 
messages are encoded on protocol specific 
way using a byte a smallest single field so 
no ASN.1 or any other kind bit-based 
message coding scheme is used.

•

Radius is stateless protocol that uses UDP 
for sending protocol packet. In practice this 
means that Radius is fairly simple to 
implement on the server side but client 
needs to have some short of retransmission 
capabilities for lost packets.

•

There is no encryption of the messages 
(except the password) so Radius assumes 
that authentication is performed inside a 
trusted network (for example, intranet).