internet_address_census_it74g-20170222 (02/22/2017 to 03/26/2017)

To collect this data, an Internet-wide IP address sweep was conducted. Every IP address in the ranges allocated by IANA was pinged once by sending ICMP ECHO_REQUEST (PING) packet. If the response (ICMP_ECHO_REPLY) came, its IP address was recorded in this data-set. In all, over 2.5 billion distinct IP addresses were probed during this experiment.

为采集本数据集，研究人员实施了一次全球互联网IP地址扫描：针对互联网编号分配机构（Internet Assigned Numbers Authority, IANA）分配的全部IP地址段，通过发送互联网控制消息协议（Internet Control Message Protocol，ICMP）回显请求（即PING）数据包，对每个IP地址执行一次ping操作。若接收到对应的ICMP回显应答（ICMP_ECHO_REPLY），则将该IP地址收录至本数据集。本次实验中共探测了超过25亿个唯一IP地址。