Nomadix Access Gateway User Manual page 134

client authenticates the customer with the RADIUS server, applies associated attributes stored
in that customer's profile, and logs their activity (including bytes transferred, connect time,
etc.).
The Access Gateway's RADIUS implementation also handles vendor specific attributes
(VSAs), required by WISPs that want to enable more advanced services and billing schemes,
such as a per device/per month connectivity fee.
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All subscribers attempting to gain access to
the network are validated by RADIUS.
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CCESS ATEWAY
System Administration