I have an issue with EIGRP with R-1 having a number of routes that must be summarised with different policies to it neighbours.
Neighbours are R-2,R-3 and R-4, but not on the main interface.
Leaving me with only option to create a virtual-template. Unfortunately virtual-template always read down when i do "Show int Virtual-template XX"
Had a similar experience with GRE tunnel. Trust me guys!!! the configs are okay because when the problem errupted i checked with a solution of a workbook. The only difference was my int was down.