how to calculate subnet mask from ip address with example

first n digits of the host address (that is, the host number) of the obtained subnet mask to 1, so that the subnet mask of the IP address is obtained. 4For

International regulations: divide all IP addresses into A, B, C, D, and E. Class DefaultSubnet Mask: Class A is 255.0.0.0; Class B is 255.255.0.0; Class C is 255.255.255.255.0. The subnet mask is a 32-bit address. It is used to shield a part of the

are suitable for small networks such as campus networks, and each class C network can have up to 254 hosts. From the above introduction we know that the IP address is the network number and host number to indicate the host on the network, only in a network number under the computer can be "directly" interoperability, computers with different network numbers need to be connected through gateways. But such

is in the back. The subnet mask is used to distinguish and calculate the IP address. For example, if the subnet mask of ip192.168.1.1 is 25

Tutorial on TCP/IP Subnet Mask 1. Default class A, B, and C addresses, subnet mask; Ii. Role of subnet mask: Code:IP address 192.20.15.5 11

principle is very simple, using the ARP protocol to broadcast their own IP address to the network, if the response there is an IP conflict, this function in the tcp/ The first volume of the IP protocol ARP protocol chapter is described in detail. This first uses the ping command to probe the set

Tutorial on TCP/IP Subnet Mask 1. Default class A, B, and C addresses, subnet mask; Ii. Role of subnet mask:IP address 192.20.15.5 11000000 00010100 00001111 00000101Subnet

Technorati label: Subnet Mask, Network Subnet Mask and network address A valid broadcast address is the network address of the host plus the largest host number. The network

carrier:0collisions:0 txqueuelen:0RX bytes:2856 (2.7 KiB) TX bytes:2856 (2.7 KiB)　　Description:Eth0 represents the first network card, where HWaddr represents the physical address of the network card, you can see the current physical address of the network card (MAC address) is 00:50:56:bf:26:20inet addr is used to indicate the

Summing up, learn today about through the Socket,ioctl to obtain ip,netmask and other information, many of which refer to a lot of information on the Internet, I will list theI use this function, is the following function, which has some global variables, very understood, do not do more explanationOne. Here is a comment on this function:int get_nic_ip_address ()//Get each NIC IP

;Padapterinfo = (Ip_adapter_info *) malloc (sizeof (ip_adapter_info));ULONG Uloutbuflen;Get structure size for GetAdaptersInfo parametersUloutbuflen = sizeof (Ip_adapter_info);First call Getadapterinfo get Uloutbuflen sizeCall the GetAdaptersInfo function to populate the Pipadapterinfo pointer variable, where the Uloutbuflen parameter is both an input and an outputif (GetAdaptersInfo (padapterinfo, uloutbuflen) = = Error_buffer_overflow){Free (padapterinfo);Padapterinfo = (Ip_adapter_info *) mal

The IP address consists of 32 bits, divided into four segments, consisting of a network number and a host number. Also divided into a b C D e Five address, where a B class C address for distribution to the global network users, D E class is a special address.1, Class A

method One: First locate any other networked computer on the same LAN, and then double-click the Local Internet Protocol (TCP/IP) entry, and fill in the default gateway and subnet mask inside the computer. 　　Method Two: 1, find the same LAN other normal operation of the computer, click on the Win+r key combination, in the pop-up dialog box directly input cmd,

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.

One day, using Centos7, when discovering the network configuration, the subnet mask needs to be converted manually, because the CENTOS7 network is configured as follows:NMCLI Connection Enp4s0 Modify Ipv4.methord manual ipv4.address "192.168.1.120/24" Ipv4.gateway "192.168.1.1" Ipv4.dns "2 23.5.5.5 "A configuration item with no

hosts section, where the physical network is used to identify the different physical networks under the same IP network address, which is the subnet.Class A IP segment 0.0.0.0 to 127.255.255.255Class B IP segment 128.0.0.0 to 191.255.255.255Class C IP segment 192.0.0.0 to 2

To convert a subnet mask to an IP address range, you often need to convert the subnet mask to an IP address range for further computation. t

I open "edit"-"Virtual network Editor" menu to modify network settingsHint Subnet mask error as shownOnline query, use the following methods to solve the problemThis virtual network editor is for you to add a network card, you add Vmnet1 is in your real computer added a virtual network card, this address is the network card in the "network segment", Remember, is

1. The subnet mask is the IP reference:Split the network segment with!Like 192.168.0.1 and 192.168.0.2.(1). Subnet mask is 255.255.255.0So 192.168.0.X in the same network segment, can access each other.(2). Hope the Mask is 255.25

An error occurred while adding new nodes to Oracle11gR2RAC -- IP subnet mask system environment: Operating System: RedHatEL5Cluster: OracleGI (GridInfrastructure) Oracle: Oracle11.2.0.1.0: RAC System An error occurred while adding new nodes to Oracle11gR2RAC -- IP subnet