Challenge and solutions of NAT traversal for ubiquitous and pervasive applications on the Internet

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Title:	Challenge and solutions of NAT traversal for ubiquitous and pervasive applications on the Internet
Authors:	Chen, Yaw-Chung;Jia, Wen-Kang
Contributors:	Department of Computer Science and Information Engineering
Keywords:	Gateways (computer networks);Internet;Internet protocols;Network protocols;NAT (Network Address Translator);NATng (NAT next generation);P2P(Peer to Peer);Pervasive;Ubiquitous
Date:	2009-10
Issue Date:	2010-04-07 13:27:19 (UTC+0)
Publisher:	Asia University
Abstract:	Network Address Translator (NAT) has brought up many changes and opportunities to the Internet. How do the ubiquitous and pervasive applications coexist with NAT and interoperate with each other? In this article, we discuss the essence of NAT sensitive applications as well as the challenge and response for various NAT traversal solutions. All questions pointed to redesign a new NAT framework with a major change to accommodate NAT problems all at once. We introduce a novel next generation NAT (NATng) framework, which consists of a Bi-directional NAT (BNAT) and a Domain Name System Application Level Gateway (DNS_ALG) with a Border Network Address Translator Control Protocol (BNATCP) function to control all BNATs. The above components coordinate and provide bidirectional access capability between intranet and Internet, so all private hosts can be addressed via Fully Qualified Domain Name (FQDN). Logistically, NATng extends the IPv4 address space from 2<sup>32</sup> to 2<sup>48</sup> or even more. It features high potential to solve the problems for ubiquitous and pervasive applications which may encounter IPv4 address exhaustion on the current Internet. © 2009 Elsevier Inc. All rights reserved.
Relation:	Source title: Journal of Systems and Software 82(10) :1620-1626
Appears in Collections:	[資訊工程學系] 期刊論文

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