How to understand that the network card is faulty. How to check a network card
Spoiler
1. A menu appears in the upper right corner when you move the cursor off the edge of the desktop. Select settings - Control Panel
2. Select the “Network and Internet” section
3. Change network adapter settings
4. On the network adapter icon in context menu select the "Properties" section
5. Using the "Details" button you can view the current connection parameters
Spoiler: To open the folder “Control Center for Security and Access Control” there are 2 ways:
1. Point to the Connection icon with the right mouse button and select “Security and access control center”
2. Select the “Services - Windows” section in the “Start” menu, then “Control Panel”. In the window, select the “Merezha and Internet” folder, then “Merger and Backdoor Access Control Center”.
Select the “Change adapter settings” section
Select “Connections via local network”, which will be selected. Press with the right
use the mouse key to select “Stan”
Check the fluidity of the border card: 
help.volia.com
Network card not working | Personal Computer
A fairly common and common occurrence is a network card error. Immediately or after some time, the Internet disappears and an unpleasant system message appears stating that the network cable is faulty or not connected correctly. Users usually start checking the cable, connection, calling service center your provider in search of a solution to this problem. The occurrence of such an error is influenced by several factors and often the network card has nothing to do with it, the reasons lie elsewhere......
A fairly common and common occurrence is a network card error. Immediately or after some time, the Internet disappears and an unpleasant system message appears stating that the network cable is faulty or not connected correctly. Users usually start checking the cable, connection, and calling their provider’s service center in search of a solution to this problem. The occurrence of such an error is influenced by several factors and often the network card has nothing to do with it, the reasons lie elsewhere.
Let's immediately determine the range of reasons why such an error may occur. Firstly, of course, the network card may simply fail. This can be affected by the quality of the computer hardware itself, as well as the quality of the network card itself, it all depends on the manufacturer. In addition, external factors can also affect its work - inaccurate attitude, incorrect installation when a personal computer user tried to forcefully insert a card into PCI slot, while damaging some contact or the outer surface of the network card itself, etc. The PCI slot is faulty, which is the case, then try just inserting network card to another slot.
Secondly, the simplest and most common type of malfunction is the absence or mismatch of network card drivers or their incorrect installation. In this case, the drivers are removed and replaced with new ones. Thirdly, there is actual damage to the network cable that delivers the signal to your computer. In this option, there may be several causes of damage, from mechanical to manufacturing defects. There can only be one option for eliminating this malfunction - connect the computer to the Internet from another signal source, for example, take the computer to a neighbor and connect it to the Internet there. If it was just a cable issue, then the computer will successfully connect to the network. Then the reason is not in the network cable, and not in the RJ45 type connector (you need to pay attention to it first), but in the network card itself.
Now let's talk about another reason that I personally encountered, on own experience. My computer has an integrated network card (built-in), it worked flawlessly and there were no complaints about it. I recently purchased a removable network card and tried to install it on my computer. Before that, I used it on another computer that did not have an integrated network card. Everything worked fine there, but as soon as I inserted it into my computer, an inscription appeared on the network adapter icon: “The network cable is faulty or incorrectly connected” and a bold cross indicating that there was no connection to the Internet. But what was striking was the fact that the card in the system unit was blinking, and everything indicated that it was working. When this network card, as a device, was successfully identified in the BIOS, the Windows7 operating system automatically installed the drivers and displayed a message that the equipment was ready for use and there were no problems with it. The device manager clearly stated that everything is in order, the equipment is turned on and working normally. First of all, the thought arose that the network cable was damaged. Having transferred the cable to the integrated network card, the Internet appeared immediately. I had to continue dancing with a tambourine around this network card. The driver update did not result in the desired result, the system continued to display a message about a cable fault and that it was unable to fix this situation. The solution came naturally, and it turned out to be simple and not complicated.
Solution of the problem. The first thing I did was disable the integrated network card in Device Manager and delete the previously installed drivers for the non-working network card. After that, I reinstalled the card into the PCI slot in the system unit and started the computer. The operating system detected the hardware and installed it. At the next stage, launched the “Device Manager” (Start - Control Panel - Device Manager) and clicking right click mouse by device ( network adapters- for example, Realtek RTL8139/810x Family Fast Ethernet Nick). Going to the Properties - Advanced menu, highlighted the “Link Speed/Duplex Mode” section and on the right in the “Value” window, made changes and set “100Mbps/Full Duplex”.
After this, the Internet connection was restored, and the Windows 7 operating system stopped displaying a message stating that the network cable was faulty or not connected correctly. Thus, the error in the operation of the network card was corrected. Yes, I almost forgot, in the properties of the network card in the “Power Management” tab, you need to uncheck the “Allow the computer to turn off this device to save power” option.
info-lite.ru
Regular users can test a network card to see if it works as expected and may or may not allow the computer to connect to other devices and networks.
One of the most simple ways check the network card, ping a site that is known to be up most of the time. You can also check the network card by checking its properties and Internet Protocol (IP) in your personal computer configuration. When pinging a website to test your network card, it's best to choose one of the most popular websites because they will likely be up most of the time. Popular search engines are examples of this type of site. You can do this by opening your computer's command prompt. From the command line, simply type the word ping, followed by a space and the website's uniform resource locator (URL), and press Enter.
Then you will see the results of the ping that you sent to the site. These results often display response time, number of packets sent, number of packets received, number of packets lost. If you get these numbers, it means your network card is working correctly. Any other result may mean that the site you pinged is down or your network card is down.
Another way to check your network card is to check the device properties to see the status of your network card. With most computers, you can do this by going to Device Manager and opening the properties window for the network card you want to test. Here you will be able to see the device is working properly or not. If this message does not appear, you can check the status or even reinstall the network card drivers.
You can also check your computer's IP configuration if your networks are not working. By looking at your computer's IP configuration, you can see the IP address of your network card. If the values are set in the section and the network cards have the same IP, then they usually indicate that the network card was installed correctly. These values can be verified by testing the connection. Sending a ping to a trusted site - this is often good way to make sure these values are correct.
There are several types of network cards. They include integrated network cards, local network (LAN) cards, and mini network cards. Each of these network cards has its own software, which can be used to install, troubleshoot, and test your network card. These packages include several diagnostic tools that can be used to make sure your network card is working properly.
From the bandwidth of network equipment (network card and wi-fi router) to which the company cable is connected depends on the possibility of obtaining more high speed. Of course, it is worth taking into account the tariff you have chosen at which the service is provided, because... It also depends on getting the highest possible speed.
Check throughput Wi-Fi router is possible by looking at its technical specifications.
How to check the network card bandwidth yourself? We will talk about this and give examples in this article.
Basic verification methods for operating systems Windows family:
You can check the network connection status in 2 ways:
Option #1
1. In the taskbar, right-click on the network connection icon and select “Network and Sharing Center.”
2. Select the “Changes adapter settings” section on the left
3. Check the status of the "Ethernet" network connection
Option No. 2
1. Go to the Start menu and select Settings on the left.
2. In the window that opens, select “Network and Internet”.
3. In the Status section, select Configure adapter settings.
Check our connection status .
4. Highlight Ethernet connection, right-click on it and select "Properties":
5. Click on the “Customize” button
6. Go to the “Advanced” tab and find “Speed and duplex” in the list. By clicking on “Value” you can see a list of parameters on which the network card can operate.
1. Go to "Desktop".
2. Hover your mouse over the lower right or top corner screen, after which it will be displayed additional panel, in which click on the "Options" icon.
3. Go to "Control Panel".
4. In the window that opens, open "Network and Internet".
5. Open Network and Sharing Center.
6. On the left, select "Change adapter settings." 
7. In the window that opens, you will see the “Connect via local network"
8. Select the local network connection, right-click on it and select “Properties”:
9. Click on the “Customize” button
10. Go to the “Advanced” tab and find “Speed and duplex” in the list. By clicking on “Value” you can see a list of parameters on which the network card can operate.
If you have 1.0 GB in your list, a speed of 200 MB/sec (more than 100 MB/sec) is available to you
1. Click on the "Start" menu, select "Control Panel".
2. In the window that opens, double-click on “Network and Internet” with the left mouse button.
3. Go to "Network and Sharing Center".
Windows 7: 4. Left-click on "Change adapter settings"
Windows Vista: 4. Left-click on “Manage network connections”
5. In the window that opens, you will see the “Local Area Connection” shortcut
6. Select the local network connection, right-click on it and select "Properties":
7. Click on the “Customize” button
8. Go to the “Advanced” tab and find “Speed and duplex” in the list. By clicking on “Value” you can see a list of parameters on which the network card can operate.
Sometimes this situation happens: you turn on the computer, but there is no Internet. And it’s a shame that yesterday he was definitely there, but today he’s no longer there! Of course, there may be a lot of options for solving network problems, but let’s consider the most standard example for practice. In stock system unit with a network card built into the motherboard, and a network card that is inserted into the PCI connector. Cable Internet, of which there are plenty now. Where should I start?
Let's begin.
1. First we need to define network hardware. I repeat once again that in our case there are two network cards.
You can find out the network equipment with the command:
ifconfig
As a result, I received this command output:
eth0 Link encap:Ethernet HWaddr 10:bf:48:7e:3a:12
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
eth1 Link encap:Ethernet HWaddr 54:e6:fc:85:7f:76
inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::56e6:fcff:fe85:7f76/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:50872 errors:0 dropped:0 overruns:0 frame:0
TX packets:40181 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:53009700 (53.0 MB) TX bytes:6912325 (6.9 MB)
lo Link encap:Local loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:2674 errors:0 dropped:0 overruns:0 frame:0
TX packets:2674 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:292948 (292.9 KB) TX bytes:292948 (292.9 KB)
From this command we see that the system sees both of our network cards (eth0 and eth1), which means that they are physically working. You can also see the network equipment with the command:
ip link show up
Command result:
1:lo:
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0:
link/ether 10:bf:48:7e:3a:12 brd ff:ff:ff:ff:ff:ff
3: eth1:
link/ether 54:e6:fc:85:7f:76 brd ff:ff:ff:ff:ff:ff
The equipment is working, which means the problem is not in the hardware. Let's move on.
2. Let's check the operation of the equipment with the network using the ping utility. This is a program for checking connections in computer network. She sends to a given node certain packets and receives responses from it, allowing you to indirectly determine the network congestion.
To check the functionality correct operation network components execute the command in the system:
ping 127.0.0.1
The output of the command, which indicates that the packets are passing through normally:
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.026 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.011 ms
64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.029 ms
64 bytes from 127.0.0.1: icmp_seq=4 ttl=64 time=0.028 ms
64 bytes from 127.0.0.1: icmp_seq=5 ttl=64 time=0.032 ms
64 bytes from 127.0.0.1: icmp_seq=6 ttl=64 time=0.028 ms
64 bytes from 127.0.0.1: icmp_seq=7 ttl=64 time=0.033 ms
64 bytes from 127.0.0.1: icmp_seq=8 ttl=64 time=0.032 ms
64 bytes from 127.0.0.1: icmp_seq=9 ttl=64 time=0.031 ms
or by specifying the IP address of your computer, which can be seen in the information about network connection, or by looking at it in the output of the ifconfig command. In our case, the eth1 network card with the IP address is 192.168.1.101. This is the IP address of our computer.
ping 192.168.1.101
Command output:
PING 192.168.1.101 (192.168.1.101) 56(84) bytes of data.
64 bytes from 192.168.1.101: icmp_seq=1 ttl=64 time=0.043 ms
64 bytes from 192.168.1.101: icmp_seq=2 ttl=64 time=0.038 ms
64 bytes from 192.168.1.101: icmp_seq=3 ttl=64 time=0.033 ms
64 bytes from 192.168.1.101: icmp_seq=4 ttl=64 time=0.035 ms
64 bytes from 192.168.1.101: icmp_seq=5 ttl=64 time=0.037 ms
64 bytes from 192.168.1.101: icmp_seq=6 ttl=64 time=0.036 ms
64 bytes from 192.168.1.101: icmp_seq=7 ttl=64 time=0.017 ms
64 bytes from 192.168.1.101: icmp_seq=8 ttl=64 time=0.034 ms
64 bytes from 192.168.1.101: icmp_seq=9 ttl=64 time=0.034 ms
The second part of the test showed that the system works perfectly with network equipment.
3. “Ping” remote hosts. Let's run the command in the Terminal:
ping google.com
Command output:
PING google.com (173.194.113.197) 56(84) bytes of data.
64 bytes from 173.194.113.197: icmp_seq=1 ttl=58 time=13.5 ms
64 bytes from 173.194.113.197: icmp_seq=2 ttl=58 time=13.5 ms
64 bytes from 173.194.113.197: icmp_seq=3 ttl=58 time=20.6 ms
64 bytes from 173.194.113.197: icmp_seq=4 ttl=58 time=13.3 ms
64 bytes from 173.194.113.197: icmp_seq=5 ttl=58 time=13.3 ms
64 bytes from 173.194.113.197: icmp_seq=6 ttl=58 time=18.7 ms
64 bytes from 173.194.113.197: icmp_seq=7 ttl=58 time=13.6 ms
64 bytes from 173.194.113.197: icmp_seq=8 ttl=58 time=13.3 ms
64 bytes from 173.194.113.197: icmp_seq=9 ttl=58 time=13.7 ms
or you can specify a different host:
ping ya.ru
Command output:
PING ya.ru (213.180.204.3) 56(84) bytes of data.
64 bytes from www.yandex.ru (213.180.204.3): icmp_seq=1 ttl=55 time=29.6 ms
64 bytes from www.yandex.ru (213.180.204.3): icmp_seq=2 ttl=55 time=29.3 ms
64 bytes from www.yandex.ru (213.180.204.3): icmp_seq=3 ttl=55 time=29.5 ms
64 bytes from www.yandex.ru (213.180.204.3): icmp_seq=4 ttl=55 time=29.5 ms
64 bytes from www.yandex.ru (213.180.204.3): icmp_seq=5 ttl=55 time=29.9 ms
64 bytes from www.yandex.ru (213.180.204.3): icmp_seq=6 ttl=55 time=29.8 ms
64 bytes from www.yandex.ru (213.180.204.3): icmp_seq=7 ttl=55 time=29.4 ms
64 bytes from www.yandex.ru (213.180.204.3): icmp_seq=8 ttl=55 time=29.4 ms
64 bytes from www.yandex.ru (213.180.204.3): icmp_seq=9 ttl=55 time=29.7 ms
In our case, all 3 parts of the test passed “Excellent” and, accordingly, the Internet works. But if, for example, the problem was on the provider’s side (cable break, Internet disconnected for non-payment, power supply problems on the provider’s side), then the command output could be like this:
ping: unknown host google.com
And finally. If suddenly you cannot access only a certain site, for example vk.com, but access other resources normally, then you need to check the /etc/hosts file just in case. See more details. You never know.
With that, let me take my leave and good luck!
Network card, also called Ethernet or Network adapter, network card, is one of those devices on which the interaction of the computer with other gadgets connected to it in the network, as well as the web connection, depends. Accordingly, if so important element The PC breaks down, the ability to access the Network or interact with connected devices becomes unavailable, so it is important for anyone to have an idea of how to check the functionality of the network card. The specific type of computer does not particularly affect the methods of such testing, except in certain nuances - for example, if we are talking about a laptop, then you will have to figure out how to check the built-in network card for functionality, and on a stationary PC - the connected one.
There is more than one way to test the above-mentioned computer element to see how functional it is, but first of all, it is worth understanding in what situations it would be reasonable to check the network card of a laptop, the functionality of which is in some doubt. Most often this happens if without visible reasons the web connection stops working, and at the same time the device transmitting the Internet signal: modem, router, etc., turns out to be quite working, and its indicators indicate that data transmission is in progress. Such cases are not uncommon, and it is the network card that should be suspected of their occurrence, although it would not hurt, before taking specific steps to test it, to contact the Internet operator and find out if there are any problems with its part.
When, in the course of communication with representatives of the operator, it turns out that the signal is indeed being transmitted correctly, in fact, with complete confidence, you need to move on to checking the network card. If it is not built-in, as in laptops, but is connected via a certain cable to the computer motherboard, first you should make sure that the contacts have not come loose anywhere, and the daisy chain connection is fully functional, and not just barely holding on, and also that the connectors are not loose. In some cases, problems with the full functioning of the network card arise when the PC overheats, its battery is not sufficiently charged, and other situations in which the system provides for a transition to energy saving mode with some devices disabled.
By the way, any energy saving mode that does not imply operation at full performance is only relevant for laptops equipped with a battery and having the ability battery life, and there is no point in installing it on a desktop PC. In addition, it doesn’t hurt to make sure that the drivers installed on the PC for this network card are the most up-to-date, i.e. not outdated and not in need of updating - and for this you will have to go to the "Device Manager". Where exactly to look for it depends on the modification operating system- for example, in Windows 10 you just need to enter this phrase into the search box of the start menu; the card you are looking for is usually located in the "Network devices" section.
Next, you need to act based on what is reflected network card in the above list or not, in other words, is it visible to the system, and if the answer is yes, it is advisable to check the relevance of the drivers. To do this you need to click right key click on the name of the card in the list of devices, view its properties, go to the drivers section there, or immediately find an offer. By the way, the symbol surrounded by yellow exclamation mark next to the details of this board in the list network devices indicates a problem with the drivers, or more specifically, the need to update them as soon as possible - otherwise the device will not work correctly.
An indicator of complete inoperability of the network card will be a slightly different icon - a red cross, which directly indicates the need to replace it, but sometimes it also happens that a card of questionable performance is not visible in the list at all. Perhaps then it makes sense to check that it is correctly connected to the motherboard - on a de-energized PC, of course - reconnect everything and go to the device manager again. Another way to check a network card, and not an integrated one, is to connect it with a patch cord ( special cable) to a switch, ADSL router, etc., which must be an Internet signal transmitter and connected to power. If in this situation a notification about connecting a new device is displayed in the system tray in the lower right corner of the display, the network card is fully functional.
Non-working network port V laptop- not uncommon in the distance. If the network connection does not work, then the network card may have failed. There may be several reasons for this: starting from a spark static electricity and ending mechanical damage the connector contact itself.
You will need
- – manager rights.
Instructions
1. Check network settings. Every network has its own rules for setting up a network connection. Typically they relate to parameters such as range, IP address, core gateway and others. Check that you are in the correct IP address range and that there are no address conflicts on your network. If you are unable to set up independently, look online for specific instructions. They similarly describe what and how to do, and also have special screenshots taken by users during this procedure.
2. Restart your computer and sign in Laptop BIOS. To do this, immediately after starting the laptop, press Del on the keyboard (this can also be F2, Esc or other buttons). Check that the network card has the Enable parameter - that is, enabled. Install drivers for the network adapter by downloading them from the official website of your laptop manufacturer. When choosing drivers, pay attention to the laptop model and operating system version. if you have installation disk, then download all the software from it to Personal Computer and reboot it so that all the metamorphoses are preserved.
3. Remove the network connection and make it again. This way you will get rid of false settings that may be assigned to a shabby network connection. As a last resort, you can try to reinstall the system. If all these steps did not help you start the network map, then, alas, it failed. External network adapters connected via USB are available for sale specifically for laptops and netbooks. If it is not possible to use wireless special technologies, use a similar device. However, it is worth noting that such special technologies have some limitations in speed, and the tariffs are much more expensive.
Connecting to the network through a dedicated channel has its own characteristics. The process of connecting and setting up programs for working with the Internet occurs in several stages. First you need to decide on a provider. Prices for connection and traffic on home networks can vary significantly. It all depends on the type of connection that the providers provide. For residents of large cities, most likely, all types of connections will be available. As usual, many “home networks” offer their customers different tariff plans, including a fixed amount of traffic.
Instructions
1. After the contract is completed, you will receive a document from the company that will detail all the parameters you need: - your IP - digital address on the network; - subnet mask; - core gateway - the address of the main computer in your local network, through the one that you access the Internet; - DNS server - the name of the domain name server, the one that translates alphabetic characters into digital ones that are understandable to the computer. - WINS - server - this digital address is not always indicated; - proxy server - the address of the “intermediary” server, through which the flow of information received from the network will pass; - address “ home page” provider, as well as login and password to access your “local” section, to which you will monitor the status of your account.
2. After you have the necessary information in your hands, set the parameters for the network card. To do this, go to the folder network operating system. From this folder, go to the Display section network connections. Now select your network device from the list of devices map, right-click on it and select Properties.
3. Check the box opposite the line When connecting, display the icon in the notification area - after that, an icon in the form of 2 connected computers will appear in the lower right corner of your Desktop.
4. Now return to the General menu and click on the line Internet Protocol(TCP/IP). The connection settings menu will open in front of you - and this is where you enter virtually all the parameters we have listed. Specify the names of DNS and WINS servers in special tabs that will open after clicking the Additional button.
Video on the topic
Helpful advice
Carefully check all the addresses you entered - a mistake in any number will make your work with the network unthinkable!
After successful installation of the network card, it may happen that it suddenly stops working, there is no connection to the Internet, and there is no local network. Initially, you might think that the problem is with the modem or the provider - temporary Internet outages are not uncommon today. To check the functionality of your network card, use the tips described in this article.
You will need
- Checking the system settings of the network card.
Instructions
1. The most primitive method of checking the connection and network card is to pull it out of your system unit and insert it into another system unit on which the connection to the local network was fine. However, do not forget that you will need to install the most fresh drivers For proper operation devices. When installing the card in another system unit, make sure that the jumpers, which are not available on all network card models, are in the required location (select Plug&Play mode).
2. If the occasion is abnormal installed drivers or system failures, "Device Manager" will display the fault as question mark on the network controller. To launch Device Manager, right-click on the My Computer icon and select Properties. In the window that opens, go to the “Hardware” tab, click the “Device Manager” button. A window will appear in front of you with a list of all devices. The presence of any problem with one of the devices is highlighted with a yellow question mark, as described above. Please note that it is advisable not to occupy port IRQ 15 for the network controller - this port is not to everyone’s taste.
3. To check the network card for functionality, connect it to a different slot (there are several of them on the motherboard). Most likely, after these manipulations, the network card will begin to work properly. If not, it makes sense to check all network cables.
IP address (Internet Protocol Address) – the address of a device connected to a local network or the Internet. It is written as four numbers from 0 to 255, separated by dots, say 172.22.0.1. All devices connected to the Internet receive their own IP address.
You will need
- Mouse, keyboard, learning the name of your computer's operating system, Internet access.
Instructions
1. To find out the IP address of a computer running an operating system Windows systems, must be registered in command line the following: cmd /k ipconfig. For example, in OS Windows process looks like this: click “Start”, then “All Programs”, select “Typical”, then select “Command Line”, in the window that opens write: “cmd/k ipconfig”, press Enter.
2. The same must be done when working in the operating room. Unix system. The computer's IP address is determined using the same ifconfig command written in the command line, familiar from OS Windows.
3. All other commands must be executed in order to determine the IP address of the machine running the operating system. iOS systems. To do this, you first need to press Apple logo in the upper left corner of the screen, select the item " System Settings", then in the "Internet and Network" section, select "Network". You should select the current connection type from the drop-down menu (if you are connected via Ethernet, select "Built-in Ethernet", if it works wireless network, select "AirPort"). Next you should prefer “TCP/IP” in the “Network” section. The Mac's IP address will be displayed on the screen.
4. You can check the known IP address of another user’s computer using any web form network protocol applied tier, based on TCP protocol. To do this you need to enter search bar any search engine (say, Google, Yandex or Rambler) a whois request, and then choose the site you like. Next, you need to enter the IP address you know into a special form on the site.
Video on the topic
Note!
There are 3 types of IP addresses: dynamic, static and virtual. Static addresses are addresses that are issued by the provider and do not change when connecting to the Internet. Dynamic IP addresses are used in Dial-up (modems) and change (the last digit usually changes). Virtual IP addresses are a non-standard type dynamic addresses, when used, users are given the opportunity to freely receive information from the Network, however, any possibility of other access to the computer from the network is lost.
Helpful advice
IP address corresponding domain name, you can find out with the support of the command: nslookup example.net
Video on the topic