A Decentralized VPN Service over Generalized Mobile Ad-Hoc Networks

Sho FUJITA  Keiichi SHIMA  Yojiro UO  Hiroshi ESAKI  

IEICE TRANSACTIONS on Information and Systems   Vol.E92-D   No.10   pp.1897-1904
Publication Date: 2009/10/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.E92.D.1897
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on New Technologies and their Applications of the Internet)
Category: Network Architecture and Testbed
network architecture,  ad hoc network,  mobile computing,  

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We present a decentralized VPN service that can be built over generalized mobile ad-hoc networks (Generalized MANETs), in which topologies can be represented as a time-varying directed multigraph. We address wireless ad-hoc networks and overlay ad-hoc networks as instances of Generalized MANETs. We first propose an architecture to operate on various kinds of networks through a single set of operations. Then, we design and implement a decentralized VPN service on the proposed architecture. Through the development and operation of a prototype system we implemented, we found that the proposed architecture makes the VPN service applicable to each instance of Generalized MANETs, and that the VPN service makes it possible for unmodified applications to operate on the networks.