@inproceedings {Det2013,
	title = {Revealing Middlebox Interference with Tracebox},
	booktitle = {ACM/USENIX Internet Measurement Conference (IMC)},
	year = {2013},
	month = {10/2013},
	abstract = {<p>Middleboxes such as firewalls, NAT, proxies, or Deep Pack-et Inspection play an\&nbsp;increasingly important role in various types of IP networks, including\&nbsp;enterprise and cellular networks. Recent studies have shed the light on their\&nbsp;impact on real traffic and the complexity of managing them. Network operators\&nbsp;and researchers have few tools to understand the impact of those boxes on any<br />path. In this paper, we propose tracebox, an extension to the widely used\&nbsp;traceroute tool, that is capable of detecting various types of middlebox\&nbsp;interference over almost any path. \&nbsp;tracebox sends IP packets containing TCP\&nbsp;segments with different TTL values and analyses the packet encapsulated in the\&nbsp;returned ICMP messages. Further, as recent routers quote, in the ICMP message,\&nbsp;the entire IP packet that they received, tracebox is able to detect any\&nbsp;modification performed by upstream middleboxes. In addition, tracebox can often\&nbsp;pinpoint the network hop where the middlebox interference occurs. We evaluate\&nbsp;tracebox with measurements performed on PlanetLab nodes. Our analysis reveals\&nbsp;various types of middleboxes that were not expected on such an experimental\&nbsp;testbed supposed to be connected to the Internet without any restriction.</p>},
	keywords = {middlebox, network discovery, tracebox},
	doi = {10.1145/2504730.2504757},
	author = {Gregory Detal and Benjamin Hesmans and Olivier Bonaventure and Yves Vanaubel and Benoit Donnet}
}
