Research Context
"In advanced network observability, understanding the default behavior of various operating systems is vital for traffic profiling. This article explores the structural differences in ICMP Echo Requests across different OS environments and analyzes how 'Traffic Mimicry' can be used to evaluate the accuracy of Network Intrusion Detection Systems (NIDS)."
1. The Anatomy of an ICMP Signature
A standard ICMP Echo Request is not just a simple signal; it carries a specific "fingerprint" based on the operating system that generated it. These fingerprints consist of:
Total Packet Size
