From securityonline.info
IVRE is an open-source framework for network recon. It relies on open-source well-known tools (Nmap, Zmap, Masscan, Bro, and p0f) to gather data (network intelligence), stores it in a database (MongoDB), and provides tools to analyze it.
It includes a Web interface aimed at analyzing Nmap scan results (since it relies on a database, it can be much more efficient with huge scans than a tool like Zenmap, the Nmap GUI, for example).