IP address and subnet mask used for computingAfter knowing the IP address and subnet mask, you can calculate:1. Network Address2. broadcast address3. Address range4. Several hosts on this websiteExample 1: the IP address in the following example is 192 · 168 · 100 · 5. The
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)), "0"); The
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
bytes 64
Limit limit 96
2017100000000128
2017100000000160
Maximum capacity limit 192
Convert the IP address of ip192.168.2.0 to the binary address (11111111.111111.00000010) and the subnet mask.
(1) 255.255.255.255.32: 192.168.2.33 ~ 192.168.2.62 --> subnet 192.168.2.32
(2) 255.255.255.255.64: 192.168.2.65 ~ 192.168.2.94 -->
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 address and subnet mask used for computingAfter knowing the IP address and subnet mask, you can calculate:1. Network Address2. broadcast address3. Address range4. Several hosts on this websiteExample 1: the IP address in the following example is 192 · 168 · 100 · 5. The
This article mainly introduces the logic judgment of js for IP addresses, subnet masks, and gateways. If you are interested, refer to the js verification for static address configuration, I found a lot of information about ip addresses and masks on the Internet. I didn't have ip addresses, submask, or gateway logic jud
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 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 ad
: Determine whether the IP addresses of any two computers belong to the same subnet * Source: Huawei Machine Test exercises---- -------------------------------------*/#include #include "OJ.h"#include #include using namespace STD;/* Function: Determine the IP address of the two computers is the same subnet. Prototype: i
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 pro
One, the IP division of the standard classificationThis division of IP in the form of IP in accordance with the network number + host number, each type of IP network number in the first few different, the rest of you except special IP (for example, all 0 and all 1, loopback
Because to do the static address configuration JS Check, find a lot of information found on the internet is about ip,mask validity check, no ip,submask,gateway logic judgment, write down the code for the needs of people reference.Popularization of Gateway address knowledge:is to proceed with the operation 1 with 1 with a 0 for 0,0 and 0 for 0. First, the IP and
Terms
1, IP address: is a 32-bit binary decimal number representation
such as: 192.168.1.1--11000000.10101000.00000001.00000001
2, Subnet mask: is a network bit full ' 1 ', host bit full ' 0 ' dotted decimal notation
such as: 255.255.255.0--11111111.11111111.11111111.00000000
3, network address: In the IP address of the network part of the same, the main opp
Because to do static address configuration JS Check, find a lot of data found online are about ip,mask validity check, no ip,submask,gateway logical judgment, write down the code for the needs of the people reference.
Popularization of Gateway address knowledge:
1th: Proceed with the operation 1 with 1 1,1 with 0 for 0,0 and 0 for 0. First, expand the IP and
IP Address Subnet mask calculation, return IP segment start and end range, length, mask and other information.
/**
* Mask Calculator
* @author Weaksun
* @param string $ip IP
* @param Numeric $bits Mask
* @return Array Ret
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
All hosts are now required to support subnet addressing (RFC 950 [mogul and Postel 1985]). Not the I P addressAs a simple network number and a host number, but the host number is divided into a subnet number and a host number.The reason for this is because the Class A and Class B addresses allocate too much space for the host number, and the number of hosts that can be accommodated separately is22 4-2 and 2
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 255.255.255.224 that is 27 full 12. From the subnet mask 255.255.255.252 to obtain its network bit is 30 bits, so only the remaining 2-bit master, th
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.