The system implementation mainly focusing disclosing the Locations of IP Spoofers from Path Backscatter using the passive IP trace back (PIT) that bypasses the deployment difficulties of IP trace back techniques. PIT investigates Internet Control Message Protocol error messages (named path backscatter) triggered by spoofing traffic, and tracks the spoofer’s based on public available information (e.g., topology). In this way, PIT can find the spoofer’s without any deployment requirement. This paper illustrates the causes, collection, and the statistical results on path backscatter, demonstrates the processes and effectiveness of PIT, and shows the captured locations of spoofer’s through applying PIT on the path backscatter data set. These results can help further reveal IP spoofing, which has been studied for long but never well understood. Though PIT cannot work in all the spoofing attacks, it may be the most useful mechanism to trace spoofers before an Internet-level trace back system has been deployed in real.
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IP trace back, marking based trace back, opportunistic piggyback marking, network forensics, Internet Service Provider (ISP), intrusion detection system.