Juniper
JN0-343 · Question #372
You add a GRE tunnel to transport packets between two routers. After implementing this, you notice an increase in the number of dropped packets. While looking at packet captures, you notice that the…
The correct answer is A. The GRE tunnel has a lower MTU than the physical interface. See the full explanation below for the reasoning.
Question
You add a GRE tunnel to transport packets between two routers. After implementing this, you notice an increase in the number of dropped packets. While looking at packet captures, you notice that the do-not-fragment (DF) bit is set in the IP header of all the dropped packets. What would cause this changed behavior?
Options
- AThe GRE tunnel has a lower MTU than the physical interface.
- BGRE tunnels do not support fragmentation.
- CGRE tunnels do not support the DF bit.
- DThe GRE tunnel has a higher MTU than the physical interface.
How the community answered
(54 responses)- A83% (45)
- B6% (3)
- C2% (1)
- D9% (5)
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