You have configured a DMVPN hub and spoke a follows (assume the IPsec profile "dmvpnprofile" is configured correctly):
With this configuration, you notice that the IKE and IPsec SAs come up between the spoke and the hub, but NHRP registration fails. Registration will continue to fail until you do which of these?
A. Configure the ipnhrp cache non-authoritative command on the hub’s tunnel interface
B. Modify the NHRP hold times to match on the hub and spoke
C. Modify the NHRP network IDs to match on the hub and spoke
D. Modify the tunnel keys to match on the hub and spoke
