Which field in the IPv6 header is used to identify the upper-layer protocol?

Options

  • A. Hop Limit
  • B. Payload Length
  • C. Next Header
  • D. Flow Label
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

C. Next Header

Detailed Explanation

Correct Answer: Next Header

  • The Next Header field identifies the type of header immediately following the IPv6 base header.
  • It may identify TCP, UDP, ICMPv6 or an IPv6 extension header.
  • It performs a role similar to the Protocol field in IPv4.