Regarding IP address assignment

Hi In my project, I'm using IP address as 55.55.0.25/16 in nextepc.conf My tunnel inet gets 55.55.0.25 , mask is 255.255.0.0 IP address for my route from the pool is 55.55.0.1. Why is this happening? I want my route to start from 55.55.0.26 and so on... how to do this? please help -- Murali.S