What is considered a requirement for passing traffic through GRE tunnels?
A.
Tunnel endpoints must have static routes pointing to the remote endpoints.
B.
You must configure the tunnel on the physical interface connecting to the remote endpoint.
C.
You must be able to reach the remote endpoint through the tunnel.
D.
Tunnel endpoints must have a route that directs traffic into the tunnel.
I think, that answer D should be correct.
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D is the right answer JNCIS-ENT Routing Study Guide page 104.
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D is correct – passed today with Tunnels section on 100%.
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