This post will build off my last one, DMVPN, and here we will discuss the routing protocol options as well as each of their configurations.  I will break out each protocol into a separate post in order to help keep things straight, putting them all together has the potential to get confusing (for both you and me!).   The routing protocol options I will document are OSPF, RIPv2, EIGRP, and BGP and   each has some unique features and quirks, so I will try and point them out where necessary.
One of the joys of EIGRP in a DMVPN network is Split-Horizon.  Just a quick refresher on Split Horizon – it is the rule that prohibits a router from advertising a route through an interface that the router itself uses to reach the destination.   This is done in order to prevent loops in the network, but with DMVPN we need to disable this feature via the no split-horizon EIGRP AS# command.
Quick note:  When I am posting the configurations for the sites I will only notate the routing protocol additions.  If you need information on DMVPN configuration, see my previous post.
Router/Switch Output
Commands
Notes
First up, the DMVPN hub:
First thing we should do is create a loopback interface and address so we have something to see and ping.
Rack1DMVPN(config)# int l0
Rack1DMVPN(config-if)# ip address 100.100.100.100 255.255.255.255