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首页> 外文会议>IEEE Conference on Local Computer Networks >Share or Not: Investigating the Presence of Large-Scale Address Sharing in the Internet
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Share or Not: Investigating the Presence of Large-Scale Address Sharing in the Internet

机译：共享与否：调查Internet中是否存在大规模地址共享

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Network Address Translation (NAT) allows multiple devices with private addresses to share one public address. NAT was mainly confined to home gateways, but with the exhaustion of the IPv4 address space, large-scale NATs have been deployed. Other technologies causing large-scale address sharing are on the rise as well (e.g. VPNs). Large-scale address sharing is problematic, since it limits the number of concurrent TCP connections and severely limits geolocation and geoblocking. We investigate the presence of large-scale address sharing in the Internet, including how frequently it occurs, in which types of organisations it occurs, where it occurs geographically, how many users share addresses, and whether its presence is linked to IPv4 address shortage. Our results show that there are thousands of addresses with significant large-scale sharing with up to a few thousand users sharing a single address. Most of this sharing occurs within ISPs, many of which are located in countries with IPv4 address shortage, indicating that large-scale NATs may be a consequence of IPv4 shortages.
机译：网络地址转换（NAT）允许具有私有地址的多个设备共享一个公共地址。 NAT主要限于家庭网关，但是随着IPv4地址空间的耗尽，已经部署了大规模NAT。引起大规模地址共享的其他技术也在不断增加（例如VPN）。大规模地址共享是有问题的，因为它限制了并发TCP连接的数量，并严重限制了地理位置和地理封锁。我们调查了Internet中大规模地址共享的存在，包括它发生的频率，发生的组织类型，地理发生的位置，有多少用户共享地址，以及它的存在是否与IPv4地址短缺有关。我们的结果表明，有成千上万个具有大规模共享的地址，多达数千个用户共享一个地址。这种共享大部分发生在ISP中，其中许多都位于IPv4地址短缺的国家/地区，这表明大规模NAT可能是IPv4短缺的结果。

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