internet_address_census_it75g-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.

为采集本数据集，研究人员开展了全域互联网IP地址扫描实验。针对互联网编号分配机构（Internet Assigned Numbers Authority, IANA）分配的全部IP地址段内的每个IP地址，均发送ICMP ECHO_REQUEST（PING）数据包完成一次Ping探测。若接收到ICMP_ECHO_REPLY（ICMP回声应答）响应，则将该IP地址记录至本数据集。本次实验累计探测了超过25亿个唯一IP地址。