internet_address_census_it75c-20170427 (04/27/2017 to 05/29/2017)

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.

为收集该数据集，研究人员执行了一次全网范围的IP地址扫描。互联网号码分配机构（IANA）分配的每个IP地址段中的所有IP地址均通过发送ICMP ECHO_REQUEST（PING）数据包进行了一次ping测试。若收到响应（ICMP_ECHO_REPLY），则其IP地址会被记录在本数据集中。本次实验共探测了超过25亿个不同的IP地址。