Tetherway

Schulz, Steffen; Sadeghi, Ahmad-Reza; Zhdanova, Maria; Mustafa, Hossen Asiful; Xu, Wenyuan; Varadharajan, Vijay

doi:10.1145/2185448.2185468

Cited by 8 publications

References 31 publications

(35 reference statements)

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Passive Remote Source NAT Detection Using Behavior Statistics Derived from NetFlow

Abt

Dietz

Baier

et al. 2013

Lecture Notes in Computer Science

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Network Address Translation (NAT) is a technique commonly employed in today's computer networks. NAT allows multiple devices to hide behind a single IP address. From a network management and security point of view, NAT may not be desirable or permitted as it allows rogue and unattended network access. In order to detect rogue NAT devices, we propose a novel passive remote source NAT detection approach based on behavior statistics derived from NetFlow. Our approach utilizes 9 distinct features that can directly be derived from Net-Flow records. Furthermore, our approach does not require IP address information, but is capable of operating on anonymous identifiers. Hence, our approach is very privacy friendly. Our approach requires only a 120 seconds sample of NetFlow records to detect NAT traffic within the sample with a lower-bound accuracy of 89.35%. Furthermore, our approach is capable of operating in real-time.

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Passive Remote Source NAT Detection Using Behavior Statistics Derived from NetFlow

Abt

Dietz

Baier

et al. 2013

Lecture Notes in Computer Science

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Mobile tethering: overview, perspectives and challengess

Constantinescu

Onur

Durmus

et al. 2014

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Purpose – The purpose of this paper is to analyze mobile tethering from technological and social perspectives. Mobile tethering allows us to share cellular data connection with others over WiFi, Bluetooth or USB. Although the technology is ready and has promising outcomes, service providers and the users still keep their distance. Therefore, the incentives for the users and service providers should be identified. Design/methodology/approach – Technical challenges in terms of energy and bandwidth consumption are explored using an application specifically developed for mobile tethering. Usage issues are studied through conjoint analysis, in which we analyze the importance of technical aspects as well as social conditions for sharing data connection with others. Findings – The research shows that although energy, bandwidth and security are important technical challenges, users are mainly concerned about social aspects, such as with whom the connection will be shared, rather than monetary issues. Mobile tethering is a viable cooperative service, only when users are familiar with the person with whom the data connection is being shared. Research limitations/implications – In the technical evaluation of the mobile tethering application, only Android operating systems are being used. Other operating systems (e.g. iOS) may perform differently. Moreover, only a small fraction of smartphones and tablets has been tested. Practical implications – Service providers tend to block mobile tethering technology, as they do not have control and do not expect to gain revenues. However, service providers have the abilities to satisfy the security and privacy concerns of the users and can create secure femtocells for their customers. Social implications – Mobile tethering performance results indicate that more people can access the Internet while they are mobile even if they do not have cellular data subscription. More Internet-based services can be offered to people while they roam in other countries. Originality/value – For technology developers, both the key technical issues and the concerns of the consumers are highlighted. Future applications must contain reliable security and privacy protocols in their design. Moreover, the significance of the social networks is shown in the decision-making of the use of mobile tethering, especially with respect to the credit exchange.

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