Phase 4 Archive
Duration: September - October 2025 Status: Complete Tests at Completion: 1,166
Overview
Phase 4 focused on performance optimization and advanced networking capabilities, transforming ProRT-IP from a functional scanner into a high-performance tool.
Goals
- Implement zero-copy packet processing
- Add NUMA-aware memory allocation
- Create PCAPNG output format
- Develop firewall evasion techniques
- Establish IPv6 foundation
Achievements
Zero-Copy Processing
Implemented zero-copy packet handling for packets larger than 10KB:
- Direct memory mapping
- Reduced CPU overhead by 15-20%
- Lower memory bandwidth usage
NUMA Optimization
Added NUMA-aware memory allocation:
- Thread-local allocators
- IRQ affinity configuration
- Cross-socket penalty avoidance
PCAPNG Output
Full PCAPNG format support:
- Interface descriptions
- Packet timestamps
- Comment blocks
- Wireshark compatibility
Evasion Techniques
Implemented 5 evasion techniques:
| Technique | Flag | Purpose |
|---|---|---|
| IP Fragmentation | -f | Split packets |
| Custom MTU | --mtu | Control fragment sizes |
| TTL Manipulation | --ttl | Set Time-To-Live |
| Decoy Scanning | -D | Hide among decoys |
| Bad Checksums | --badsum | Invalid checksums |
Metrics
| Metric | Start | End | Change |
|---|---|---|---|
| Tests | 391 | 1,166 | +198% |
| Coverage | ~30% | 37.26% | +7.26% |
| Throughput | 5M pps | 10M+ pps | +100% |
Key Decisions
- Raw sockets over libpcap - Better performance
- DashMap for state - Concurrent access
- Tokio runtime - Async I/O
- pnet crate - Cross-platform packets
Lessons Learned
- NUMA awareness critical for high-performance
- Zero-copy only beneficial above threshold
- Evasion techniques need careful testing
- IPv6 more complex than anticipated