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http://dx.doi.org/10.5762/KAIS.2013.14.4.1935

The Efficient Scenario of Solving NAT Traversal in the IMS  

Han, Seok-Jun (Department of Electrical, Electronic and Communication Engineering, Korea University of Technology and Education)
Lee, Jae-Oh (Department of Electrical, Electronic and Communication Engineering, Korea University of Technology and Education)
Kang, Seung-Chan (Department of Electrical, Electronic and Communication Engineering, Korea University of Technology and Education)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.4, 2013 , pp. 1935-1941 More about this Journal
Abstract
We can use NAT(Network Address Translation) technology to solve the lack of IP address. The problem of NAT traversal is happened when the filtering characteristics of NAT remove the packet that has no binding in the address translation table of NAT. There were many kinds of way to solve these problems by using additional device. Lately, network market is changed into integrating wired and wireless network by the IMS(IP Multimedia Subsystem). The IMS integrates to control network of wired and wireless network, has emerged to control convergence network effectively. Lately, the additional devices like IBCF(Interconnection Border Control Function) and IBGF(Interconnection Border Gateway Function) are used to solve the NAT traversal problem in the IMS. In this paper, we propose the solution of NAT traversal using P-CSCF without any additional equipment in the IMS.
Keywords
NAT; NAT Traversal; IMS; P-CSCF;
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