2008Telecommunications for Electric Power SystemRequires access

Study on NAT transversal for Peer-to-Peer network communication

Rong Li

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Abstract

Network Address Translation(NAT) is a method by which IP address is mapped from one realm to another,in an attempt to provide transparent routing to hosts.Although it can resolve the problem of IP address exhaustion,it brings some difficulties on Peer-to-Peer communication.Bases on the technology of internet Peer-to-Peer and NAT theory,this paper analyzes the NAT impact on P2P,introduces several NAT traversal techniques,analyses the characteristics respectively and points out the key factors affecting NAT traversal.The UDP Hole Punching technology and a solution on NAT traversal of TCP communications are also discussed in the paper.

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What this paper is about

Network Address Translation(NAT) is a method by which IP address is mapped from one realm to another,in an attempt to provide transparent routing to hosts.Although it can resolve the problem of IP address exhaustion,it brings some difficulties on Peer-to-Peer communication.Bases on the technology of internet Peer-to-Peer and NAT theory,this paper analyzes the NAT impact on P2P,introduces several NAT traversal techniques,analyses the characteristics respectively and points out the key factors affecting NAT traversal.The UDP Hole Punching technology and a solution on NAT traversal of TCP communications are also discussed in the paper.

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Available abstract

Network Address Translation(NAT) is a method by which IP address is mapped from one realm to another,in an attempt to provide transparent routing to hosts.Although it can resolve the problem of IP address exhaustion,it brings some difficulties on Peer-to-Peer communication.Bases on the technology of internet Peer-to-Peer and NAT theory,this paper analyzes the NAT impact on P2P,introduces several NAT traversal techniques,analyses the characteristics respectively and points out the key factors affecting NAT traversal.The UDP Hole Punching technology and a solution on NAT traversal of TCP communications are also discussed in the paper.

Key concepts: NAT traversal, Nat, Network address translation, Computer network, TCP hole punching, Tree traversal, Computer science, The Internet

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