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masks, and address classifications can be divided and addressed together. The absence of any of the three elements will lead to logical vulnerabilities.
The last problem: Similarly, in a LAN, theoretically we also need to split subnets of varying sizes, which also need to classify IP addresses, for example, 10.0.0.0/8 is divided into 10.0.0.0/16 ~ 10.127.0.0/16 and 10.128.0.0/24 ~ 10.191.255.0/24, etc. Ask
, 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
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
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
, 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
The IP address is composed of four digits. Here, let's take a look at three common IP addresses.Class a ip segments 0.0.0.0 to 127.255.255.255Class B IP segments 128.0.0.0 to 191.255.255.255C-type IP segments 192.0.0.0 to 223.255.
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
Network Segment
Encyclopedia business cards
A cidr Block refers to the part in a computer network that uses the same physical layer device (transport medium, repeater, hub, and so on) for direct communication. From one IP address to another, it is like a network segment from 192.168.0.1 to 192.168.255.255.
Network Segment
The subnet
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
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
QT5 obtains the local IP address, computer name, network connection name, MAC address, subnet mask, and broadcast address.Get Host Name
/** Name: get_localmachine_name * function: get the name of the Local Machine * parameter: no * returned: QString */QString CafesClient: ge
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
Transferred from: http://www.cnblogs.com/JuneWang/p/3917697.htmlIn order to learn more about the TCP/IP protocol, recently read a lot of relevant information, collected and recorded as follows, for later use and convenient for you to learn:IP address, subnet mask, default gateway, what does DNS server mean?(a) Problem
PS: found a good article on the Internet, carried over, in case you can't find it later. At the same time the individual made a simple change. IP address, subnet mask, default gateway, what does DNS server mean?(a) Problem analysis001. Q: IP
You must know something about the IP address, right? We know that the TCP/IP protocol that is widely used in the Internet is to differentiate between different hosts by using IPs. If you've ever had a TCP/IP protocol set up, then you're bound to encounter the term subnet
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