Request types

Your device is able to send different types of RADIUS requests to an accounting server. These requests differ according to a user's session state:

An accounting start request is sent after a successful authentication.
An accounting stop request is sent after a Public Spot session is terminated.
Optional: Interim updates are sent throughout the session.

There are two types of interim updates: An initial update is sent immediately after the start request since some RADIUS servers need this in order to create a session in the accounting database. All further updates depend on whether an accounting cycle was created for the respective session (see Public Spot > Users > Accounting update cycle).

Alternatively, this value may be included in a RADIUS authentication response: The RADIUS server offers the RADIUS client (for example, your Public Spot) an interim accounting interval, which the client will use if it has the appropriate support for this and as long as no interval was set locally on the device itself.

Note: If a local value was set, it will always be given a higher priority than the one received from a RADIUS server, which the RADIUS RFCs require by default!