After the brief overview about the installation of flow-tools and FlowViewer, in this post I’d like to share my experience about the setup of a basic solution based on another pair of tools: NFDUMP and NfSen. As always on my posts, the starting point is a fresh Debian 5.0 setup.
UPDATE: you may be interested in FlowGraph too, a tool that allows to dynamically build graphs based on previously collected netflow data and to use them in a web-based front-end, adding details about Autonomous System Number holders, IPv4 and IPv6 prefixes, inet(6)num objects, netnames from RIPE Stat.