subnet calculator

Description A subnet mask is a basis for determining whether the IP addresses of any two computers belong to the same subnet.The subnet mask is the same as the IP address structure, which is a 32-bit binary number, where the network number section is all "1" and the host number is all "0". Use the subnet mask to determine whether two hosts are in the same

Subnet Mask calculation: Decimal Turn binary:Decimal:23-> 111,010 Binary2|23---12|11---12|5---12|2---02|1---10Move the remainder from bottom to top, from high to Low: 10111 Binary goto decimal:Binary:11011-> 272 binary system1 (24) + 1 (23) + 0 (22) + 1 (21) + 1* (20) = 16 + 8 + 0 + 2 + 1 = 27From right to left, 2 of the N power operation, n increments from 0, and then multiplies each bit of the binary as a coefficient and the power ope

Many people are certainly not familiar with the subnet mask setting, which is a headache. Now I will tell you how to easily calculate the subnet mask and help people who like to be lazy :) Everyone should know how many hosts are between the power 0 and the power 10 of 2? Let us also say that they are:1 2 4 8 16 32 64 128 256 512 1024. If you want only five IP addresses in each

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 subnet mask of the address category corresponding to this IP address is first obt

PHP calculator instance based on factory mode, php factory calculator instance The example in this article describes the calculator implemented by PHP Based on the factory mode. Share it with you for your reference. The details are as follows: abstract class Calculator{ private $number1; private $number2; public $resul

IP address is composed of network address + host address so you can get the network bit + host bit = 32 bitsThe concept of the same network segment :The same network segment refers to the IP address and subnet mask, and the same net address is obtained.Want to be in the same network segment, must do network identity is the same, that is, network address. For example, Class A address: Only the first paragraph (255.0.0.0); Class B Address: First to seco

Windows Azure Platform Family of articles Catalog　　When I use Azure virtual machine VMS, I often use them in conjunction with the virtual network.But sometimes, we deploy in the virtual network subnet subnet information is wrong, I want to modify this virtual machine belongs to the subnet, how should I modify?Let me briefly introduce you here.　　1. First, we have

We can determine whether the IP address is in the same CIDR Block through the IP address directly. The following describes how the computer uses the subnet mask to determine whether the IP addresses of two hosts are in the same CIDR block ~ How can I calculate the network ID if I want to have the same network ID in the same network segment? Network Identification Algorithms for various IP addresses are differ

Reference Original address: http://www.cnblogs.com/JuneWang/p/3917697.htmlIP Address:IPv4IP address = network number + host numberSubnet Mask:A subnet mask is a basis for determining whether the IP addresses of any two computers belong to the same subnet . The simplest understanding is that the respective IP addresses of the two computers and the subnet mask afte

represents the different hosts within the network segmentAttention:Private IP is an IP address that everyone can access for use in the intranet.Let's explain what a subnet mask is, why put this concept with an IP address? Remember that because the subnet mask and IP are present together .The standard subnet mask for Class A is 255.0.0.0The standard

1 We in the Apple 5s main screen, with the finger from the lower screen to pull up, and then in the open "Control Center" we click on "Turn Screen" then we open the interface and click "Vertical direction lock." (pictured below) 2 into the "add-on" we Click "Calculator" Now you will find that the calculator is still very simple oh. 3 Rotate the mobile phone screen, when your mobile phone display horiz

for virtual networks. In particular, it not only supports traditional port-based VLAN division, but also supports VLAN division based on IP addresses, subnet numbers, and protocol types, this brings great convenience to campus network management. Therefore, the new layer-3 Exchange router is used as the main device in the LAN of the campus and building. In addition to providing high bandwidth for packet forwarding and the above functions, it also pro

The following is from the author of the "network administrator must read-Super network Management Experience" (2nd edition) The first thing to understand here is what it means to make a molecular network, which is one of the things that many readers don't understand. As we all know, the use of subnetting subnet in the subnet division not only can not increase the new available IP address, but also loss of