Migration Exchange 2010 to Exchange 2013 with CAS Array and DAG

Dear All,

I am starting the migration of Exchange 2010 2 servers (CAS/Mailbox) with DAG no CAS Array to Exchange 2013 with 2 servers CAS array and 2 Mailbox servers with DAG. I read on some blogs that no requirement of CAS array on Exchange 2013. My concern how to configure NLB on CAS servers for the client to connect.

Please guide and have any deployment guide for this, kindly share.

Thanks