Communication Feature Analysis for Network Change Detection

The patent introduces communication feature information as an intermediary indicator to detect changes in communication devices or network configuration. Instead of directly relying on MAC addresses or IP addresses that can be rewritten, the system extracts communication features (such as communication patterns, timing characteristics, or behavioral traits) from the communication data. These features serve as a mediator that reflects actual device or network changes without being susceptible to address rewriting attacks, thereby maintaining detection reliability while preserving measurement precision.

The patent extracts only the essential communication features from the communication data that are necessary for change detection. Instead of analyzing all communication data or using complex identification methods, the system selectively extracts specific communication features (such as timing patterns, data flow characteristics, or protocol behavior) that are sufficient to detect device or network changes. This extraction approach maintains high detection reliability while minimizing processing complexity by focusing only on the most relevant features.

The patent replaces the mechanical/address-based identification system (relying on MAC addresses and IP addresses) with a behavior-based identification system that analyzes communication features. Instead of using fixed addressing mechanisms that can be rewritten by relay devices, the system substitutes address-based identification with pattern-based analysis of communication data. This substitution enables reliable change detection by observing actual communication behavior rather than relying on potentially falsifiable address information.