Home > DMVPN Questions

DMVPN Questions

Question 1

Refer to the exhibit.

interface Tunnel0
ip address 2 55. 255.255.0
ip nhrp map 192 .168.1.1
ip nhrp network-id 1
ip nhrp nhs
tunnel source 192.168.2 . 2
ip mtu 1416

What is wrong with the configuration of the tunnel interface of this DMVPN Phase II spoke router?

A. The interface MTU is too high.
B. The tunnel destination is missing.
C. The NHRP NHS IP address is wrong.
D. The tunnel mode is wrong.


Answer: D

Comments (7) Comments
  1. CCIE_Banana
    October 23rd, 2014

    Where is the statement for the Tunnel Destination ? can you see, is it now the answer B ?

  2. Shardek
    October 24th, 2014

    In DMVPN Phase II Tunnel Destination is no used, the statement is correct “tunnel mode”.

  3. Sensie
    November 17th, 2014

    If we added Tunnel Destination that will make it DMVPN Phase I.

  4. CCIE
    April 2nd, 2015

    No tunnel destination is needed on the Hub router. It is still needed on the spokes, even for DMVPN.

  5. martin
    April 12th, 2015

    tunnel mode gre multipoint needed; no tunnel destination needed at all for phase 2

  6. Llew
    August 23rd, 2015

    yes agree Martin , otherwise we will be building p2p tunnel

    with not configured as per the question the router will fall back to
    Tunnel protocol/transport GRE/IP
    with it configured
    Tunnel protocol/transport multi-GRE/IP

  7. RP
    September 8th, 2015

    Phase 2 is point to multipoint, so tunnel destination is not required. We need to specify tunnel mode as GRE multipouint so Tunnel mode GRE multipoint commad is required.

Add a Comment

Reload Image