RadialNet is a network visualization tool. It consists in a graphical visualization of the networks mapped with Nmap, with some efforts to make it easy to find security problems.
You can download it from the following link: https://packetstormsecurity.com/files/download/64388/radialnet-0.44.tar.gz
Source: https://packetstormsecurity.com/files/64388/radialnet-0.44.tar.gz.html