I have a trouble with configure DMVPN.
I configured it by document AN 54.
On the Hub side I use Cisco Router 2921 and I also configured interface tunnel0 with mode gre multipont and in another side I use DIGI Transport WR11.
When I create gre interface on the digi transport, I can't pinging tunnel interface on the side Cisco.
I don't need configure full mash topology. I want configure only Multihub and spoke topology.
Please help me to to implement this scheme.