A network address translation approach to the inbound session problem in private networks

Ming Deng Hsieh, Hung Chun Chang, Chien-Chao Tseng, Tsan Pin Wang*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

This paper proposes a Dynamic-Configurable NAT (DCNAT) approach to the inbound session problem for private networks behind NAT routers. DCNAT is a port-based NAT scheme that adopts a registration procedure for a host to register a session with a DCNAT router before originating a communication session to a host behind the DCNAT router. With the registration procedure, the DCNAT router can create NAT binding entries dynamically for address: port translation before the inbound session starts. Furthermore the dynamic creation of NAT binding entries makes DCNAT very flexible in supporting inbound accesses to a large number of services opened dynamically by the private nodes behind an NAT router. Although DCNAT requires minor modification to the originating host and the NAT router, it is highly suitable for proxy-based applications, such as web browsing, or instant message delivery.

Original languageEnglish
Pages (from-to)482-489
Number of pages8
JournalIEICE Transactions on Information and Systems
VolumeE90-D
Issue number2
DOIs
StatePublished - 1 Jan 2007

Keywords

  • Inbound session problem
  • NAT
  • Port collision problem

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