Identification Field

• IP packet has a 16-bit Identification field

  • Source host internet process places a random number in the Identification field
  • Different for each IP packet

Total Length in bytes (16)

Time to Live (8)

Version

(4)

Hdr Len

(4)

TOS (8)

Indication (16 bits)

Flags (3)

Fragment Offset (13)

Header Checksum (16)

Protocol (8)

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