Ethernet Header Extraction Tool

The Ethernet Header Extraction Tool is a utility designed for network packet analysis, capable of capturing and parsing Ethernet data frames. Developed using MATLAB, this tool can capture network data streams in real-time and extract critical information such as timestamps, packet lengths, and payload content.

The core logic of the tool comprises the following components: Packet Capture: Leverages MATLAB's network interface capabilities or external libraries (such as pcap adapters) to intercept raw Ethernet frames, ensuring efficient data stream reception through socket programming or library integrations. Header Parsing: Analyzes the Ethernet frame structure to extract key information including MAC addresses and type fields, while recording packet arrival timestamps for subsequent time-series analysis using bit manipulation and struct parsing techniques. Payload Extraction: Isolates the payload portion of data frames to facilitate further parsing or storage by upper-layer protocols (such as IP or TCP) through buffer segmentation and data copying operations. Logging: Saves captured packet information (including frame length, timestamps, and critical fields) to files or databases using MATLAB's file I/O functions or database connectors for subsequent回溯 and analysis.

This tool is suitable for network performance monitoring, security analysis, or protocol development scenarios, enabling developers and researchers to quickly access low-level details of network packets through programmable data processing workflows.