NAP is binded on the basis of attributes selected in the NAP settings. Like user name, nas IP address, Nas port , radius attributes.
This mapping is done on the basis of incoming attributes at the time to user authentication.
For example ..In NAP we can define a condition that if request comes from specif nas ip , it should be authenticated to specific database....so NAP is mapped according to the incoming radius attributes.
Regards,
~JG
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