Disconnect previus session if new access-request is received

[Juanjo Abenza]

Hello,

Some time ago i've configured a freeeradius file so freeradius could behave
in the next way:

If an access-request is received and the user (Limited to one simultaneous
use) has a previous session with the same mac-address, close the session
and validate the user request.

I've been searching for this configuration for two days now and i'm not
able to find it. Does anyone has this configuration so you can share it
with us?

Best regards, Juanjo.