Which of the following descriptions about the characteristics of GRE over IPsec is incorrect?

Question

Options

• AWhen gateways are connected using GRE over IPsec, IPsec encapsulation is performed first, and
• BThe data flow that IPsec needs to protect is the data flow from the GRE start point to the GRE end
• CGRE over IPsec can take advantage of GRE and IPsec to provide secure transmission of
• DThe encapsulation mode used by GRE over IPsec can be tunnel mode or transport mode.

• A
  78% (18)
• B
  4% (1)
• C
  4% (1)
• D
  13% (3)

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