>The check field tells RadiusNT to check the set of received attributes
>for a matching attribute/value pair. If it does not find it, RadiusNT
>will reject the request. Check fields are NOT sent back to the NAS.
>Currently, two AVP checks on the same user would probably always fail,
>as both AVPs would be required in the request (it doesn't support OR
>type checks).
What we are trying to develop is a service for the customers to tell us a
set of numbers from what they will be calling to our NAS and we will accept
the calls only if coming from those numbers.