Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 238

A network engineer must configure a DMVPN network so that a spoke establishes a direct path to another spoke if the two must send traffic to each other. A spoke must send traffic directly to the hub if required. Which configuration meets this requirement?

Answer options

• A. At the hub router: interface tunnel10 ip nhrp nhs dynamic multipoint ip nhrp nhs shortcut tunnel mode gre multicast On the spokes router: interface tunnel10 ip nhrp nhs multicast dynamic ip nhrp nhs redirect tunnel mode gre multicast
• B. At the hub router: interface tunnel10 ip nhrp map dynamic multipoint ip nhrp redirect tunnel mode gre multicast On the spokes router: interface tunnel10 ip nhrp map multicast dynamic ip nhrp shortcut tunnel mode gre multicast
• C. At the hub router: interface tunnel10 ip nhrp nhs multicast dynamic ip nhrp nhs shortcut tunnel mode gre multipoint On the spokes router: interface tunnel10 ip nhrp nhs multicast dynamic ip nhrp nhs redirect tunnel mode gre multipoint
• D. At the hub router: interface tunnel10 ip nhrp map multicast dynamic ip nhrp redirect tunnel mode gre multipoint On the spokes router: interface tunnel10 ip nhrp map multicast dynamic ip nhrp shortcut tunnel mode gre multipoint

Correct answer: D

Explanation

Option D is correct because it uses the appropriate commands to configure the hub and spoke routers for direct communication between spokes while allowing traffic to the hub. The other options either incorrectly configure the NHRP settings or do not enable the required direct spoke-to-spoke communication.