internet_address_census_it89g-20200219 (2020-02-19 to 2020-03-22)

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，研究人员开展了一次全球互联网范围的IP地址扫描行动。研究人员通过发送互联网控制消息协议回显请求（ICMP ECHO_REQUEST，即PING）数据包，对互联网编号分配机构（Internet Assigned Numbers Authority, IANA）分配的地址段内的每一个IP地址进行一次ping探测。若收到对应的互联网控制消息协议回显应答（ICMP_ECHO_REPLY）响应，则将该IP地址记录入本数据集。本次实验累计探测了超过25亿个独立IP地址。