What is the NHRP role in DMVPN? (Choose two)
A. obtains the next-hop to be used for routing
B. routes the packet through the tunnel
C. identifies the PIM-SM RP used to route the packet
D. can authenticate VPN endpoints
E. It requires each tunnel endpoint to have an unique network ID
AD
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_nhrp/configuration/xe-3s/nhrp-xe-3s-book/config-nhrp.html
NHRP is an ARP-like protocol that alleviates these NBMA network problems. With NHRP, systems attached to an NBMA network dynamically learn the NBMA address of the other systems that are part of that network, allowing these systems to directly communicate without requiring traffic to use an intermediate hop.
Specifying the NHRP Authentication String
Perform this task to specify the authentication string for NHRP on an interface.