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Question 52 - JN0-351 discussion

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You want to ensure traffic is routed through a GRE tunnel.

In this scenario, which two statements will satisfy this requirement? (Choose two.)

A.
Tunnel endpoints must have a route that directs traffic into the tunnel.
Answers
A.
Tunnel endpoints must have a route that directs traffic into the tunnel.
B.
All intermediary devices must have a route to the tunnel endpoints.
Answers
B.
All intermediary devices must have a route to the tunnel endpoints.
C.
Keepalives must be used on stateless tunneling protocols.
Answers
C.
Keepalives must be used on stateless tunneling protocols.
D.
BFD must be used on the stateless tunneling protocols.
Answers
D.
BFD must be used on the stateless tunneling protocols.
Suggested answer: A, B

Explanation:

Option A is correct. For traffic to be sent through a GRE tunnel, there must be a route that directs the traffic into the tunnel. This is typically accomplished through the use of a static route or a dynamic routing protocol.

Option B is correct. All intermediary devices must have a route to the tunnel endpoints34. In real-world scenarios, the tunnel endpoints for a tunnel going over the Internet must have globally reachable internet addresses. Otherwise, intermediate routers in the Internet cannot forward the tunneled packets.

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asked 18/09/2024
Mauro Daniele
37 questions
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