What are three requirements to ensure proper GRE or IP-IP tunnel routing? (Choose three.)

The correct answer is B. Tunnel endpoints must have a route that directs traffic into the tunnel. C. BGP must be used on intermediate devices. D. Tunnel endpoints must have a valid route to the remote endpoint. See the full explanation below for the reasoning.

Question

Options

AKeepalives must be used on stateless tunneling protocols.
BTunnel endpoints must have a route that directs traffic into the tunnel.
CBGP must be used on intermediate devices.
DTunnel endpoints must have a valid route to the remote endpoint.
EAll intermediary devices must have a route to the tunnel endpoints.

How the community answered

(18 responses)

A
6% (1)
B
78% (14)
E
17% (3)

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