+ Version: the packet in IPv4.+ Header length: the packet is ICMP packet (without school Option)+ Source IP: the packet sent from a source.+ Destination IP: the packet sent to the same destination.+ Differentiated Services: the ICMP packet have the same ToS class (subclass of service)+ Upper Layer Protocol: all ICMP.The school must change is:+ Identification: the IP datagram must have different ID, just the same new datagram fragmentation.+ Time to live: traceroute will increase gradually in the series TTL packet sent.+ Header checksum: header change do checksum change over.
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