subnet mask tutorial

The Ip2long IP address is converted to an integer type.Long2ip integer data is converted to IP. The subnet mask is converted to a mask length mode:$slash _notation = strlen (Preg_replace ("/0/", "", Decbin (Ip2long ($subnet _mask)));$bits =strpos (Decbin (Ip2long ($mask)), "

Label: style HTTP Io OS ar use SP Div on How to calculate the subnet mask Browsing:5984 | Updated: Business development often causes many organizations to face the following problem: the number of workstations is increasing, and it is becoming increasingly difficult to manage a single large network. If a single large network is divided into multiple subnets, the performance of the e

/** * Get broadcast address * */public static String getbroadcastaddress (string subnet, string IP) {string[] ips = ip.split ("\ \."); string[] subnets = subnet.split ("\ \"); StringBuffer sb = new StringBuffer (), for (int i = 0; i Get the Java implementation of the broadcast address based on the IP address and subnet mask

Subnet Mask and IP address operation subnet mask: function: divide an IP address into two parts: network address and host address. Once the subnet mask is set, the network address and host address are fixed. Calculation: Convert t

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 to derive the subnet address and broadcast address. Ideas are as follows:1. The subnet

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

This example describes JS authentication IP, subnet mask, gateway, and Mac methods. Share to everyone for your reference. as follows: The wants this article to help you with your JavaScript programming.

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 A

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

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

This article describes in detail how to configure network IP addresses. What operations do we need? I believe that reading this article will help you. A few days ago, the netizen harcsbg encountered a strange subnet mask problem during network IP address configuration. harcsbg asked for help in the ccid it community. Dear experts, I have encountered a strange problem in network IP address configuration toda

Linux generally uses the ifconfig command to modify the IP, gateway, or subnet mask of a Linux host. 1. Command format:ifconfig [Network Devices] [parameters]2. Command function:The Ifconfig command is used to view and configure network devices. This command can be used to configure the network appropriately when the network environment changes. 3. Command parameters:up starts the specified network device/N

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 6

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 addresses of one or two computers in the Intranet are 218.102.142.7 and 218.102.142.219. Try to calculate the

IP address and subnet mask 1. IP Address:The Internet is formed by the interconnection of different physical networks. The computer communication between different networks must have a corresponding address ID, which is called an IP address. IP addresses provide a uniform address format consisting of 32 bits. Because the binary format is inconvenient to use, users can use the "dot-decimal" method. The IP ad

1. Use the number of subnets for Calculation Before obtaining the subnet mask, you must first understand the number of subnets to be divided and the number of hosts required in each subnet. 1) convert the number of subnets to binary representation.2) The number of digits to obtain the binary value is N.3) obtain the subnet