How to add check item (Pool-Name) from Exec-Program-Wait script?

Hello, I want to use two ippools. That's no problem of course. But which IP pool to assign I can decide only in Exec-Program-Wait script. Now I have the following lines in users file: DEFAULT Auth-Type := Accept Exec-Program-Wait = "/etc/raddb/authclient" authclient script checks text file, connects to MySQL and Oracle and then it can say - use ippool1 or ippool2. But how to set Pool-Name check item? As far as I understand if authclient would write "Pool-Name:=ipool1" to stdout then that would be reply not check item!? So how could I tell from the script which ippool to use? I feel that that somehow should be possible since ippool is post-auth thing. :) Thanks, Mindaugas