计算机技术与发展
計算機技術與髮展
계산궤기술여발전
COMPUTER TECHNOLOGY AND DEVELOPMENT
2014年
2期
242-245
,共4页
对等网络%网络地址转换%ICMP%生存时间%穿越
對等網絡%網絡地阯轉換%ICMP%生存時間%穿越
대등망락%망락지지전환%ICMP%생존시간%천월
P2P%NAT%ICMP%TTL%traversal
针对目前常用的几种NAT穿越技术存在的需要改变网络环境、不支持Symmetric NAT与TCP的穿越、延时、丢包等问题，在对P2P网络环境下NAT穿越原理认真分析的基础上，以穿越原理为基点，对目前NAT穿越技术存在的问题进行了研究。给出了‘采用端口预测穿越NAT的新方案爷，该新方案在不需要改变现有网络设备的情况下实现了TCP对各种NAT的穿越，减少了延时和丢包等NAT穿越常见的问题。通过大量的实验表明该新方案更适合于对网络安全需求更高而使用对称型NAT的企业。
針對目前常用的幾種NAT穿越技術存在的需要改變網絡環境、不支持Symmetric NAT與TCP的穿越、延時、丟包等問題，在對P2P網絡環境下NAT穿越原理認真分析的基礎上，以穿越原理為基點，對目前NAT穿越技術存在的問題進行瞭研究。給齣瞭‘採用耑口預測穿越NAT的新方案爺，該新方案在不需要改變現有網絡設備的情況下實現瞭TCP對各種NAT的穿越，減少瞭延時和丟包等NAT穿越常見的問題。通過大量的實驗錶明該新方案更適閤于對網絡安全需求更高而使用對稱型NAT的企業。
침대목전상용적궤충NAT천월기술존재적수요개변망락배경、불지지Symmetric NAT여TCP적천월、연시、주포등문제，재대P2P망락배경하NAT천월원리인진분석적기출상，이천월원리위기점，대목전NAT천월기술존재적문제진행료연구。급출료‘채용단구예측천월NAT적신방안야，해신방안재불수요개변현유망락설비적정황하실현료TCP대각충NAT적천월，감소료연시화주포등NAT천월상견적문제。통과대량적실험표명해신방안경괄합우대망락안전수구경고이사용대칭형NAT적기업。
Due to several problems in the common technology of the NAT traversal at present,such as the need of changing the environ-ment,non-supporting the Symmetric NAT and TCP traversal,delaying,the lost of data and so on,after carefully analyzing the theory of the NAT traversal in P2P,based on the traversing theory,studied the appearing problems of the NAT traversal,then give a new method of using pot to predict the NAT traversal. This new method achieves the way of TCP crossing all kinds of NAT in no need of changing the original equipment of the Internet,which reduced the common problems in the field of NAT traversal such as delaying and the lost of da-ta. Some experiments which has been verified present that the method can adapt to the enterprises which have higher requirement of net-work security and using a class of symmetry NAT.
