30 bit subnet mask

, which is scaled down step by step and located on a house number. If we create numbers for the province, city, and street, and combine them with the street number, we can get a long string of numbers to uniquely identify a home address. Similarly, the IP address has a 32-bit length, so long as an encoding, why can't we retrieve the first few digits as a "region" address, which of the remaining digits is used as the "relative" address in this region?

Subnet mask (Subnet masks): The subnet mask is used to identify which part of the IP address is a network address. Which part is the host address, there are 1 and 0 components, long 32 bits, all 1 of bits represent the network number. Not all networks require subnets, so th

The subnet mask cannot exist alone, it must be used in conjunction with an IP address. The subnet mask has only one function, which is to divide an IP address into two parts: network address and host address.The subnet mask settin

this point the network number bit becomes 25 bits, and the host label becomes 7 bits. Similarly borrowing 2 host bits can divide a class C network into 4 subnets ... How did the computer know if the network was divided into subnets? This can be seen from the subnet mask. The subnet

As for subnet division, the subnet mask is odd. 1.0.1.0 -- 1.0.3.255 Fujian Telecom converts the subnet mask to an IP segment 1.0.1.0/24--1.0.2.0/23, if two IP addresses are replaced by binary IP addresses in a general way, or the budget is 0001.00000000.00000001.00, the

into several subnets, each subnet contains 700 hosts:1) 700 = 10101111002) the binary is ten digits, n = 103) set all the host addresses of the subnet mask 255.255.0.0 for the Class B address to 1, and obtain 255.255.255.255.255.Then, move the last 10 positions 0 from the back to the back, that is, 11111111.1111111100.00000000.That is, 255.255.252.0. This is the

computer number. If the IP address is represented by a binary, the Class A IP address consists of a 1-byte network address and a 3-byte host address, and the highest bit of the network address must be "0". A class of IP address network identification length of 8 bits, host identification length of 24 bits, a class of network addresses a small number of 126 networks, each network can accommodate the number of hosts up to more than 16 million units. Cl

255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.255.1. Based on the subnet mask, you can know the number of network numbers and the number of host numbers!Convert bytes into binary: 11111111 11111111 11111111 11100000There are 27 network numbers and 5 Host numb

host address. The subnet mask must be set according to certain rules. Same as the IP address, the subnet mask length is also 32 bits, the network bits on the left are represented by the binary number "1", and the host bits on the right are represented by the binary number "0. Www.2cto.com "192.168.1.1" and the

subnets will need to occupy 1 bits of the original host identity bit. At this point the network number bit becomes 22 bits and the host label becomes 7 bits. Similarly borrowing 2 host bits can divide a class C network into 4 subnets ... How did the computer know if the network was divided into subnets? This can be seen from the subnet

part is the host address, there are 1 and 0 components, long 32 bits, all 1 of bits represent the network number. Not all networks require subnets, so there are 1 concepts: The default subnet mask (defaulted subnet mask). The default subnet