Freeradius with DHCP and VLANs

Hi all, I'm using Freeradius version 2.1.12 with MySQL backend and EAP-TLS authentication to serve dynamic VLAN and a DHCP server to leases this IP address. This setup work sucefully but IP address of supplicants doesn't stored in the database. Is there any setup to store IP address of supplicants in the database? How sqlippoll works? does it work as a DHCP server? Is it posible to setup Freeradius with DHCP module to server diferents VLANs? Thanks for all. Fernando