多于255台电脑如何设置ip和子网掩码的知识（More than 255 computers, how to set up IP and subnet mask knowledge）.docVIP

多于255台电脑如何设置ip和子网掩码的知识（More than 255 computers, how to set up IP and subnet mask knowledge） 530 computer, consisting of a peer-to-peer LAN, subnet mask and IP address should be how to set? Firstly, we try to understand the IP and subnet mask (A/B/C three for IP) A class of 1.0.0.0 to 127.255.255.255 is characterized in that the binary representation of the highest bit is 0 B 128.0.0.0 to 191.255.255.255 of the binary representation of the top two bits 10 C 192.0.0.0 to 223.255.255.255 of the binary representation of the top three bits 110 D (multicast) with long broadcast address, is characterized in that the binary representation of the top four bits 1110 The E class used as alternate address, is characterized in that the binary representation of the top five bits 11110 Subnet mask Windows system default distribution of each section is only 255 or 0 The default subnet mask 255.0.0.0 a subnet of a computer can accommodate up toThe default subnet mask 255.255.0.0 a subnet of the B class can accommodate up to 65534 computer The default subnet mask 255.255.255.0 a subnet of the C class can accommodate up to 254 computer Mask: a 255.0.0.000000000. 0 conversion B 255.255.0.01111111100000000 C 255.255.255.01111111100000000 Subnet mask is a number of computer decision sub networks, the formula is 2 times N, among them, we can see n as the last 1 behind the number of 0. Such as 255.255.255.0 into binary, that is1111111100000000, with 8 N 8255.255.255.0 0, that is the subnet mask can accommodate 8 Party PC 2, which is 256 units, but two IP is not used, it is not the last paragraph is 0 and 255, minus the two that is 254. We look at an example: The 255.255.248.0 subnet mask can accommodate up to how much computer? Algorithm: To convert it into four binary number (8 bits per segment, less than 8 in front of 0 fill filled)111111100000000 Then, there are several count 0, a total