蜂窝网络中TCP NAT穿越可行性的测量

L. Makinen, J. Nurminen
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引用次数: 14

摘要

本文研究了各种技术来克服防火墙和nat对点对点连接造成的障碍。在移动环境中,防火墙和nat通常由移动运营商管理,因此不受移动用户的控制。因此,本文的重点是利用nat和防火墙的已知行为的技术。我们不是研究如何对这些设备应用显式控制,而是分析不同的NAT和防火墙穿越技术如何在不同的蜂窝网络中工作。为了了解运营商NAT/防火墙的行为,我们测量了世界不同地区的六个蜂窝网络。分析结果表明,这些网络存在较大的方差;三到四个(取决于使用的方法)网络似乎允许nat或防火墙后面的对等点之间的TCP通信。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Measurements on the Feasibility of TCP NAT Traversal in Cellular Networks
This paper studies various techniques to overcome the barriers that firewalls and NATs cause to peer-to-peer connectivity. In the mobile context firewalls and NATs are typically managed by the mobile operator and are thus beyond the control of the mobile user. Therefore the focus of this paper is on techniques that take advantage of known behaviors of NATs and firewalls. Instead of studying how to apply explicit control to these devices we analyze how the different NAT and firewall traversal techniques would work in different cellular networks. To get an idea of operator NAT/firewall behavior we measured six cellular networks in different parts of the world. The analysis of the results shows that there is much variance in these networks; three to four (depending on the used approach) of the networks seem to allow TCP traffic between peers behind NATs or firewalls.
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