I have a design with dmvpn where the hub is a router asr 1000 with public static IP addres and the spokes with ADSL, the spokes are branch office of different clients (A y B), and I configured VRF in the HUB for separate the networks, in the hub I configured diferent tunnel for each client with their VRF.
the DMVPN configuration is ok in HUB and in SPOKES., the issue is that only work for one tunnel, when shutdown one tunnel in the HUB, the other tunnel get UP, and backwards.
do you have any idea for that it happens ??
this is the design
This is a very generic problem we need more details - is it tunnel interface status that goes down or IPsec goes down or no NHRP mappings are possible?
I think it's best you open a TAC case to investigate.