Description
Traceroute is probably the most famous networking
tool widely adopted in both industry and research. Despite
its long life, however, measurements based on Traceroute are
potentially inaccurate, misleading or incomplete due to several
unresolved issues. DRAGO is a tool able to detect, quantify and locate hidden routers - devices that do not decrement the TTL, being
thus totally invisible to Traceroute.
The tool implements a novel active probing technique composed of three main steps.
First, a novel Traceroute enhanced by the IP
Timestamp option is launched toward a destination. Second, a
procedure is applied to quantify the hidden routers contained in
the path, if any. Third, a last procedure is performed to identify
the exact position in the path of the detected hidden routers.
Experimental results demonstrate that the phenomenon is not
uncommon: DRAGO detects the presence of hidden routers in
at least 6% of the Traceroute IP paths and limits the affected
area to one fifth of the trace containing these devices.
Currently DRAGO is under alpha testing. To obtain the alpha version, please send an email to: e-mail
Papers
- Pietro Marchetta and Antonio Pescapè, DRAGO: Detecting, quantifying and locating hidden routers in Traceroute IP paths, INFOCOM, 2013 Proceedings IEEE , vol., no., pp.3237,3242, 14-19 April 2013.