Freeradius and COA

Hi, I am trying to figure out to use the Coa functionality in Freeradius. I have two seperate questions. 1) For originating a COA packet, is it possible to trigger it from rlm_perl. i.e. cause an "update coa". 2) For receiving a COA packet. How can I "process" it. I see that when perl instantiates, it claims it will use two funtions, send_coa and recv_coa. In what section must I put perl for it to call the functions? I've created a listen section for Coa. Freradius receives it, but "does nothing" and simply sends back an ack. Hope this makes sense... -- Johan Meiring Cape PC Services CC Tel: (021) 883-8271 Fax: (021) 886-7782