Graphical Traceroute

GTrace is a graphical front-end to traceroute that geographically displays the IP path information between the source and destination hosts. It is written in Java and works on the Solaris, Linux, and FreeBSD. It uses a combination of methods to either determine or guess at the physical location of a node in the traceroute path. It is flexible enough to support the addition of new databases, heuristics to map IP addresses to physical locations, and maps.