Hello sales2161
When you have a Point-to-Multipoint Non-Broadcast network type over Frame-Relay and you want to configure EIGRP, no automatic neighbor discovery occurs. Th is because it is a non-broadcast network type. For this reason, neighbors must be configured manually.
Now in order to configure the neighbours manually, it is only necessary to employ the neighbor
command on the Hub. Once this is done, the spoke routers will receive the EIGRP packet being sent to them and will respond to it creating the adjacency.
I hope this has been helpful!
Laz