I have been looking for a tool that will visualize traceroute data in a graph. Skitter looks ideal, but its availability is quite limited. I have tried Netmap (netmap.sourceforge.net) and have been mucking about with Graphviz (graphviz.org) in general. However, the problem of building a map from traceroute data (with graphviz anyway) is sorting out the unique paths. Technically possible, but I don't want to re-invent the wheel if I don't have to. Tulip (tulip-software.org) is a framework that something like this could be written in, as is any other viz tool (opendx.org, etc...) The tools from Opte (opte.org) aren't available yet. Is there a tool that you are currently using to represent large traceroute graphs that is available under a gpl/bsd/open license? Even something based on Dot or Neato? Thanks, -- Jamie.Reid, CISSP, jamie.reid@mbs.gov.on.ca Senior Security Specialist, Information Protection Centre Corporate Security, MBS 416 327 2324