Advanced Host Detection – Techniques To Validate Host-Connectivity. (PDF) Security Engineers spend a tireless amount of effort to block and filter packet anomalies in an internetwork connected environment. Advanced host mapping bypasses many forms of intrusion detection systems, filters, and routers, essentially enabling an attacker to map and discover previously unknown firewalled hosts. Also available in DOC form.
You can download it from the following link: https://packetstormsecurity.com/files/download/24080/host-detection.pdf
Source: https://packetstormsecurity.com/files/24080/host-detection.pdf.html