We present a method to perform Internet tomography obtaining its enriched topology, i.e., adding to each link properties such as delay, utilization, etc. We consider symmetrical measurements, that is, we execute traceroute’s like probes using controllable nodes playing either source and target role. We based on PlanetLab testbed our experiments and we obtain an annotated map of a representative Internet portion. This information could be useful to build a thorough Internet model.