Refer to the exhibit. A network engineer configures a GRE tunnel and enters the show Interface tunnel command. What does the output confirm about the configuration?
- A. The keepalive value is modified from the default value.
- B. Interface tracking is configured.
- C. The tunnel mode is set to the default.
- D. The physical interface MTU is 1476 bytes.
Explanation: From the “Tunnel protocol/transport GRE/IP” line, we can deduce this tunnel is using the default IPv4 Layer-3 tunnel mode. We can return to this default mode with the
tunnel mode gre ip command.
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