The very first step of co-existence of Exchange 2013 with 2010 is re-direction for OWA. I installed 2013 in test with 2010 and the first thing which should be working out of the box is OWA re-direction. I am stuck like many others with basic re-direction issues. It has been days since I have been struggling to get it fixed and no progress in further testing. No answers on forums, large number of people seeing same issue.
I never understood why Microsoft clients (Exchange administrators) need to put so much time in making things work which should be working with minimum time and efforts. Instead of working on Exchange architecture and design we all are working on to make re-direction work.
May be after sometime we give up and start opening up support cases with Microsoft and start paying them for support for no real reason or problem.