Nokia A032 User Manual page 147

protocol. Many vendors, including Nokia, sell
such authentication servers.
Using an external server has the following
advantages:
•
•
If you are using an authentication server, you'll
need to enter the keys manually by reading the
text file
Note that the value of the key which is stored in
the authentication server is itself encrypted.
This means that the key cannot be discovered
while being retrieved by the access point across
the network. On arrival at the access point, the
key is decrypted using the RADIUS Shared
Secret of the access point.
Setting up a RADIUS external key database
The Nokia A032 can use RADIUS to access an
external key database. There are several
parameters which must be configured to allow
this feature to work. To understand these
parameters it is necessary to describe the way
in which the keys are accessed.
In this section we will use the term RADIUS
server to refer to an "Authentication Database
server accessed using the RADIUS protocol".
Such servers are widely available from various
vendors for most platforms.
You can store a large number of keys.
All the keys are stored at a central location
– you don't need to update all the access
points individually when a key is added,
deleted or modified.
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