internet_address_census_it63g-20150117 (01/17/2015 to 03/23/2015)

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，研究人员开展了全球互联网IP地址扫描工作：针对互联网编号分配机构（Internet Assigned Numbers Authority）分配的全部IP地址段，向每个IP地址发送一次ICMP回声请求（PING）数据包。若接收到对应的ICMP回声应答（ICMP_ECHO_REPLY），则将该IP地址收录至本数据集。本次实验累计探测超过25亿个独立IP地址。