Analysis of P2P Across NAT
Qinjun Xu
Abstract
Qinjun Xu
Abstract
With the wide application of P2P(Peer-to-Peer) network technology based on Internet,more internal hosts need joining P2P.IP addresses of hosts behind NAT are unseen from Internet,and hosts in internet can’t access hosts behind NAT actively.But the P2P network requires that any computer can exchange information directly,thus P2P applications must solve the problems of bidirectional communication across NAT.This paper introduces several methods of P2P across NAT,and these methods can guide development of practical application programs.
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With the wide application of P2P(Peer-to-Peer) network technology based on Internet,more internal hosts need joining P2P.IP addresses of hosts behind NAT are unseen from Internet,and hosts in internet can’t access hosts behind NAT actively.But the P2P network requires that any computer can exchange information directly,thus P2P applications must solve the problems of bidirectional communication across NAT.This paper introduces several methods of P2P across NAT,and these methods can guide development of practical application programs.
Key concepts: Nat, NAT traversal, Computer science, The Internet, Network address translation, Computer network, Peer-to-peer, Network address