Packet Analyzer in Java

Demo

A multithreaded packet analyzer developed in Java that demonstrates packet parsing, Deep Packet Inspection (DPI), connection tracking, rule-based filtering, and load balancing using object-oriented design principles.

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Features

• Packet parsing
• Deep Packet Inspection (DPI)
• Connection tracking
• Rule-based packet filtering
• Multithreaded packet processing
• Load balancing
• Fast-path packet optimization
• TLS SNI extraction
• Maven project structure

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Technologies Used

• Java 11
• Maven
• Object-Oriented Programming (OOP)
• Multithreading

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Project Structure

src/
└── main/
    └── java/
        ├── Main.java
        ├── Packet.java
        ├── PacketParser.java
        ├── Connection.java
        ├── ConnectionTracker.java
        ├── DpiEngine.java
        ├── RuleManager.java
        ├── PcapReader.java
        ├── LoadBalancer.java
        ├── FastPath.java
        ├── SniExtractor.java
        └── ThreadSafeQueue.java

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How to Run

1. Clone the repository.
2. Open it in IntelliJ IDEA or Eclipse or VS Code.
3. Import it as a Maven project.
4. Run Main.java.

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Sample Output

Packet Analyzer & Multithreaded DPI Engine

Initialized System with Worker Threads

Injecting Synthetic Packets...

HTTPS Packet -> ALLOW
HTTP Packet -> ALERT
HTTP Packet -> DROP

Connection Summary Generated

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Future Improvements

• Live packet capture using Pcap4J
• PCAP file analysis
• GUI dashboard
• Export packet analysis reports
• Real-time traffic monitoring

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Author

Jyotiranjan Acharya