In a spoke-to-spoke DMVPN topology, which type of interface does a branch router require?
A. Virtual tunnel interface
B. Multipoint GRE interface
C. Point-to-point GRE interface
D. Loopback interface
In a spoke-to-spoke DMVPN topology, which type of interface does a branch router require?
A. Virtual tunnel interface
B. Multipoint GRE interface
C. Point-to-point GRE interface
D. Loopback interface