Rlm_sqlippool with Simultaneous-Use > 1

Using freeradius-2.2.5-1.centos6.x86_64. Accounting data in mysql, IP pools in psql. Is it possible to use rlm_sqlippool with Simultaneous-Use > 1 ? Currently on second connection user is assigned same IP, causing a conflict on client side. Is it possible to add some other unique parameter to allow to assign multiple IPs for duplicate connections from same user? (assuming the two sessions are registered correctly in accounting DB) Amir.