Computers and Technology, 04.02.2021 01:00, ernest214

Probabilistic Packet Marking is used in a network. Node B received 20 packets with the same source IP address, which is 10.3.2.30. Among them, 11 packets have IP address 10.0.2.24 in the marking field, 5 packets have IP 64.3.0.18 in that field, and 4 packets have no information there. Can you tell whether they are spoofed packets? If among them, ten packets with 12.0.2.24, six packets with 8.9.0.1, three packets with 1.2.3.4, and one packet with 33.24.11.7, can you tell whether they are spoofed packets? Bob thinks that using a lower overwrite probability, say, 30% instead of 50%, this technique can support IP Traceback with more intermediate routers. Do you agree with him? Why?

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Probabilistic Packet Marking is used in a network. Node B received 20 packets with the same source I...