Deep Packet Inspection Engine
Advanced Network Traffic Analysis System
Overview
A high-performance Deep Packet Inspection (DPI) engine built in C++ for advanced network traffic analysis, protocol classification, and security filtering.
This project involved developing a custom Deep Packet Inspection engine capable of parsing and analyzing network packets across multiple OSI layers in real time. Built using C++ and libpcap, the engine classified application-layer protocols including HTTP, TLS, and DNS while supporting advanced traffic filtering and malware signature detection. The system was designed for high throughput and low-latency packet inspection, making it suitable for cybersecurity and enterprise traffic monitoring applications.
- Category
- Cybersecurity
- Year
- 2025
- Role
- Full Stack Developer
Technologies
Tech Stack
4 technologies across 4 layers
backend
1- C++
tools
3- libpcap
- Wireshark
- Linux Networking Tools
Key Features
Real-time packet inspection across L2–L7 layers
Protocol classification for HTTP, TLS, and DNS traffic
Rule-based traffic filtering engine
Malware signature detection pipeline
TCP and UDP traffic analysis support
P2P throttling and content filtering capabilities
High-performance packet parsing using libpcap
Network monitoring and security-focused architecture
Challenges & Solutions
01
Processing and classifying high volumes of network packets in real time without packet loss.
Optimized packet parsing logic using efficient memory handling techniques and lightweight filtering pipelines to maintain high-throughput packet inspection.
02
Accurately detecting malicious traffic patterns while minimizing false negatives.
Implemented a multi-stage rule-based inspection pipeline combined with protocol-aware traffic classification mechanisms for reliable threat detection.
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