how to calculate subnet mask from ip address

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Know an IP address, how to calculate its subnet mask ah?

There are two ways to compute the subnet mask: Method One: Use the subnet number to calculate: 1. First of all, the number of subnets from the decimal number into binary number; 2. Then, the number of digits of the binary number obtained by the statistic is set to n; 3. Finally, the

Ip address, subnet mask, and address classification, ip subnet mask

(2, n)-2 (all zeros are used for network addresses, and all 1 is used for broadcast addresses) The number of 1 in the subnet mask can be used to calculate the number of subnetworks. For example, if the IP address is 151.244.20.34 and the

How to calculate the CIDR Block Based on the IP address and subnet mask in Python

This article mainly introduces how to use Python to calculate network segments based on IP addresses and subnet masks. It involves Python character string operation techniques based on the Linux platform and has some reference value, for more information about how to use Python to calculate network segments based on

IP address, subnet mask, network number, host number, network address, host address, IP address

IP address, subnet mask, network number, host number, network address, host address, IP address IP

Subnet Mask and IP address calculation network address and broadcast address conversion

is 202.112.14.159.In the ccna test, you also need to plan the subnet address and calculate the subnet mask based on the number of hosts on each network. This can also be calculated based on the above principles. For example, if a subnet

Determine if the same subnet is owned by IP address, subnet mask

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

IP address classification, subnet mask, private address difference

Summary: Class A, B, C is actually the concept of address block, the so-called application of a class C address, refers to the application of a Class C address block. C class Address block of specific IP address of this class C

IP address and Subnet mask address

, that subnet mask set how much appropriate? Let's set out a formula first.2 m-Time Square =560First, we determine that 2 must be greater than 8 square, because we know that 2 of 8 is 256, that is, the number of Class C IP maximum capacity of the computer, we from 9 times a trial 2 9 is 512, less than 560, 2 10 is 1024, it seems 2 of the most suitable. The

Derive subnet address and broadcast address based on IP address and mask

The subnet address and broadcast address are not given directly because the condition is given precedence. However, these two parameters require that we use the IP address and subnet mask

MAC address and IP address, subnet mask, and default gateway

, infrared, etc., sometimes referred to as physical media. The MAC address is also called the physical address, hardware address, or link address, which is written by the network device manufacturer when it is produced inside the hardware. This address is not related to the

IP address, subnet mask, default gateway, DNS server knowledge detailed

, why calculate network addressThe bottom line is that the computers in the network can communicate with each other. First look at the simplest network, Figure 3 is to use a network cable (crossover) directly connect two computers. Here are several IP address settings to see if the network is on or off in different settings.1, set the

IP address, subnet mask, default gateway, DNS server detailed

different networks, so it does not pass.Here is a conclusion: the computer with a direct connection to the network cable or through the hub (hub) or the ordinary switch between the computer to be able to communicate with each other, the computer must be on the same network, that is, their network address must be the same, And the host address must be different. If it is not a network will not be able to pa

IP address, subnet mask, default gateway, DNS server details

is a private address and cannot be applied directly in the Internet. The Internet must be converted to a public address.I. Why do I need to calculate the network address?In a word, computers in the network can communicate with each other. first, let's look at the simplest network. Figure 3 uses a network cable (crossover line) to directly connect the two compute

[Network technology] calculates the network address, direct broadcast address, and host number based on the IP address subnet mask.

I don't need to analyze it professionally. I use dummies to answer questions. This is a simulated question. Use this question as an example. URL type: Of course, it is Class B. Convert the IP address and subnet mask to binary, and then perform operations on them. 145.189.24.3 10010001 10111101 00011000 00000011

IP Address/subnet mask/gateway Analysis

IP addresses, subnet masks, and gateways in network management are the basic knowledge that each network administrator must master. Only by mastering them can you really understand the TCP/IP protocol settings. The following describes what a subnet mask is.To understand what

Shell script, extract IP address and subnet mask, and check out network IP address information.

#提取IP地址和子网掩码 [[email protected]~]#ifconfigeth0|grep 'inet Addr'|awk-F'[ :]+' '{print $4 "/" $8}'192.168.16.110/255.255.255.0[[Email protected]~]# #查外网IP地址 [[email protected]~]# curl-s Ipecho.net/plain;Echo114.93.99.39#查外网ip地址是什么宽带114.93.99.39IP:114.93.99.39from: Shanghai Telecom [[email protected]~]##输出IP地址是绿色的, the

An example of how to calculate the subnet mask and broadcast address

Question: If a company has 100 computers and a class C registered IP address segment: 218.102.142.0, its Intranet (LAN) needs to be further divided into two subnets, each with 40 computers and 60 computers, Requirements: (1) Specify the subnet mask; (2) assume that the IP

A few words to master subnet mask, IP address, host number, network number, network address, broadcast address

A few words to master subnet mask, IP address, host number, network number, network address, broadcast address1, 191.172.16.10.33/27 in the/27 that is, the subnet mask is 255.255.255.22

IP address, subnet mask, default gateway, what does the DNS server mean?

): Network address + host address =192.168.100.1Broadcast address: 192.168.100.255How are these addresses calculated? Why calculate these addresses? To know how, first to understand a truth, the purpose of learning Network is how to make the network of computers communicate with each other, that is, around the word "to

How to compute IP address and subnet mask _ network

need to compute the subnet mask and allocate the corresponding host block, although using the binary calculation can draw the corresponding conclusion, but it is more convenient to calculate the decimal method. After long-term practice and experience accumulation, the author sums up the subnet

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