Accessing IP list...

Hello I want My Radius server not to access the clients IP List, and it should entertain everyother IP which sends the request. It must not block the IP to get info. HOw can i do this? Second, if there is any way that radius server should look for Mysql database for the IP which tries to connect to it. I mean, if i send some request from some new IP, then radius server should check the database for the list and then authenticate? Bye -- Kamran Bukhari