从湖南省高考试题谈IP地址与子网掩码的设置

Talking IP Address and Subnet Mask Setting on College Entrance Examination of the Hunan Province

湖南省高考对口招生每年都涉及IP地址与子网掩码的问题。IP地址是人们在Internet上为了区分数以亿计的主机而给每台主机分配的一个专门的地址，通过IP地址就可以访问到每一台计算机。IPv4地址由32bit二进制数组成，用4个点分十进制数表示。子网掩码是一个32bit二进制数，用于区分IP地址的网络号和主机号。

Hunan Province, the college entrance examination of enrollment counterparts involves IP address and subnet mask issue in recent years. IP address is that people in order to distinguish the hundreds of millions host in the Internet and each host assigned to a specific address, can be accessed to each computer through the IP address. IPv4 address from the 32bit binary form, with four dotted decimal number indicates. Subnet mask is a 32bit binary number used to distinguish the IP address of the network number and host number.