How much overhead does the GRE header add to an IPv4 packet?

How much overhead does the GRE header add to an IPv4 packet?

How much overhead does the GRE header add to an IPv4 packet?

A.
24 bytes

B.
32 bytes

C.
48 bytes

D.
64 bytes



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SFS

SFS

Does anyone know if this dump is still valid? I noticed there’s no difference between v.4 and this v.5. The first 200 questions or so are basically duplicates of the first 70 questions in v.4, there are no new questions in v.5.