iDRAC Discovery

I need to get IP of iDRAC from many Windows server 2008/2012/R2, most of these servers has OMSA installed however open manage essential is not configured. I can get the details by logging on to the server and running racadm getniccfg however considering number of servers, it seems to be a daunting taks. Is there any script/way to get this done with less effort?