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Exam 300-101 topic 2 question 496 discussion

Actual exam question from Cisco's 300-101
Question #: 496
Topic #: 2
[All 300-101 Questions]

Which common issue causes intermittent DMVPN tunnel flaps?

  • A. a routing neighbor reachability issue
  • B. a suboptimal routing table
  • C. interface bandwidth congestion
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Suggested Answer: D. that the GRE tunnel to hub router is not encrypted 🗳️
DMVPN Tunnel Flaps Intermittently

Problem -
DMVPN tunnel flaps intermittently.

Solution -
When DMVPN tunnels flap, check the neighborship between the routers as issues with neighborship formation between routers may cause the DMVPN tunnel to flap. In order to resolve this problem, make sure the neighborship between the routers is always up. Reference: http://www.cisco.com/c/en/us/support/docs/ security-vpn/ipsec-negotiation-ike- protocols/29240-dcmvpn.html#Prblm1
by diegonamaste at Feb. 20, 2020, 1:53 p.m.

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diegonamaste
5 years, 2 months ago
A. a routing neighbor reachability issue
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