Users to IP limit Please help me

[Dumpfbacke 102731]

Hello, 

I has Freeradius with a Mysql data bank in run. Now I would like to assign
the users them there are put down an IP. Also, if the user another IP Use,
than they who stand in the data bank should be rejected he(it) by the radius
server.

How or where I can put this that are limited the users to a certain IP ?

Please, Help to me I be in despair


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