Reference : TNT, Watch me Explode: A Light in the Dark for Revealing MPLS Tunnels
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Computer science
http://hdl.handle.net/2268/235109
TNT, Watch me Explode: A Light in the Dark for Revealing MPLS Tunnels
English
Vanaubel, Yves mailto [Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Smart grids >]
Luttringer, Jean-Romain []
Mérindol, Pascal []
Pansiot, Jean-Jacques []
Donnet, Benoît mailto [Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Algorithmique des grands systèmes >]
Jun-2019
Network Traffic Measurement and Analysis (TMA) Conference 2019
Yes
No
International
Network Traffic Measurement and Analysis (TMA) Conference 2019
du 19 juin 2019 au 21 juin 2019
Paris
France
[en] TNT ; MPLS tunnels ; Traceroute
[en] Internet topology discovery aims at analyzing one of the most complex distributed system currently deployed. Usually, it relies on measurement campaigns using hop-limited probes sent with traceroute. However, this probing tool comes with several limits. In particular, some MPLS clouds might obfuscate collected traces. Thus, the resulting Internet maps, the inferred properties, and the graph models are incomplete and inaccurate.

In this paper, we introduce TNT (Trace the Naughty Tunnels), an extension to Paris traceroute for revealing, or at least detect, all MPLS tunnels along a path. First, along with traceroute and ping probes, TNTlooks for hints indicating
the presence of hidden tunnels. Those hints are peculiar patterns in the resulting output, e.g., significant TTL shifts or duplicate IP addresses. Second, if those hints trigger alarms, TNT launches additional dedicated probing for possibly revealing hidden tunnels. We use GNS3 to reproduce, verify, and understand the limits and capabilities of TNT in a controlled environment. We also calibrate the thresholds at which alarms are triggered through a dedicated measurement campaign. Finally, we deploy TNT on the Archipelago platform and provide a quantified classification of MPLS usage. All our results, including the data, the code, and the emulation configurations, are fully and publicly
available
http://hdl.handle.net/2268/235109
Extended version available here http://hdl.handle.net/2268/232334

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