Hi. there is a radius server with VPN server as its nas. radius server use ldap server in back end for authentication and authorization. we want if Calling-Station-Id of user is valid radius could give ippool number=1 in access reply to vpn server and if Calling-Station-Id of user is invalid could give ippool number=2. how radius can do this compare? my user file configuration: DEFAULT Client-IP-Address == 192.168.200.123, Auth-Type := Vpn, Autz-Type := Vpn, Post-Auth-Type := Vpn, Session-type := Vpn and in client.conf: client 192.168.200.123{ secret = newvpnsecret shortname = vpn }