Local networks are no longer something unusual, as they were at the dawn of their creation. The advantages of such networks are obvious. Users of computers connected to a single local network will have access to shared files and folders and can easily exchange necessary information, edit documents, play games using command modes, etc. However, this only applies to computers that are connected to each other using wires and quite a large amount of “iron” equipment. But what to do when the computers are quite far from each other? This is where software products for creating virtual local networks come to the rescue. Among them, quite often there are completely free programs. Downloading free programs for creating local networks and installing them on your computer is not a problem now. As they say, there would be a desire. Among the free burnouts for local networks of such applications, two main types can be distinguished. The first type allows you to create a virtual private network in such a way that one of the computers will act as a server. And this also includes programs that use computers alternately as the main server. Data exchange in this case is carried out using P2P (peer-to-peer) technologies, that is, using the universal BitTorrent protocol. The second type includes programs where the role of the central server is performed by a remote server of the software manufacturer. Here you only need to register on the manufacturer’s website. If we talk about free programs of this kind, then, in comparison with paid analogues, they allow you to create networks with the connection of about one and a half dozen computers or accounts. It is clear that paid analogues can create networks connecting even several hundred computers. However, for home use or small offices, 15-20 users are completely sufficient. It must be said that networks created using such applications have all the capabilities of conventional wired networks. And the setup, in most cases, is very similar. The difference in such programs may also be that sometimes one computer is bound to only one specific IP address. In some other cases, the IP address may be assigned automatically. To work on such a network, you will only need a program installed on your computer. Some free programs for creating private virtual networks even allow you to use the registration data of many Internet messengers, for example, Jabber accounts. However, the capabilities of such programs are quite similar. Some additional features may differ, such as the presence of built-in chats or short text messaging capabilities. It seems that today, virtual networks are still preferable, since they allow computers located even in different parts of the globe to be united into a single network. On our website you can download the most modern programs for creating local networks.

We continue to consider home low-current networks. In this article I want to touch on a very relevant topic today - local computer network at home.

We are surrounded by more and more devices that can connect to a local computer network or the global Internet. Let's look at how to organize the connection of several computers or devices to a local network. How to organize Internet access over a local network so that every device connected to the network can have access to the global Internet. We will also look at how to create a wireless local network using Wi-Fi.

Local network between computers

In order to connect several computers into a local network, a special device is used - switch (switch).

The switch has several connectors - ports, to which using a special cable twisted pair UTP-5e connects computers or other devices. The twisted pair is crimped on both sides with special RJ-45 connectors. This wired connection technology is called Ethernet.

Internet connection via local network

There is a concept local computer network LAN, it is internal, we discussed how to create it above. There is also global computer network WAN, she is external.

Let's look at how to connect devices connected to our local network to the global Internet. So that from each individual device of ours (desktop computer, laptop, network media player, TV) we can have access through our Internet provider to the global Internet.

For this purpose, a special device is used - router (router).

The router has a separate WAN port, to which a twisted pair cable from the Internet provider is connected. Through this port, our local network is connected to the global Internet.

Also, depending on the model, the router has several LAN ports for connecting local network devices. Usually these are four or more ports.

In general, one router is enough to create a local network and organize its access to the Internet. If there are not enough ports to connect devices on the internal LAN network, then you must additionally use a switch.

In the figure below, I just showed the option when some devices are connected through a router, and some through a switch.

The cable from the Internet provider is connected to the WAN port of the router. Our router has four ports to connect four LAN devices.

We want to connect:

Three computers; - network storage NAS; - TV with Internet connection; - maybe something else in the future.

We connect the all-in-one computer and the network drive to the LAN ports of the router, leave one port as a backup for the future, and connect the remaining free port with a twisted pair cable to a free port on the switch.

We connect a desktop computer, laptop and TV to the free ports of the switch.

If you need to connect several more devices to the local network, but there are not enough free ports on the switch, add another switch and connect these devices to it. This option can be useful when organizing a local computer network in a cottage, when a separate switch can be installed on each floor.

I would like to note that in our example, you can purchase a router with a larger number of ports and connect all local network devices to it. Then a switch is not needed.

This configuration using a router will allow each device connected to the local network to access the Internet via one channel from the Internet provider.

Wireless LAN via Wi-Fi

Above, we looked at the topology of constructing a wired local network. But today, more and more devices are appearing with the ability to connect to the network using Wi-Fi wireless technology. First of all, these are tablets and smartphones. How to create a local network via Wi-Fi? To do this, you need to connect a special device to a free port of our router or switch using a compressed twisted pair - Wi-Fi hotspot.

It will allow you to exchange information between all devices connected to the local network both via wired Ethernet technology and wireless Wi-Fi. In addition, we get the opportunity to access the Internet from our tablets and smartphones.

If Wi-Fi coverage is not enough, you can expand it by adding another access point.

Recently, they have become widespread in apartments and small offices. Wi-Fi routers, they combine a router and a wireless access point in one package. I discussed in detail how to create a local Wi-Fi router network in the video, and also discussed several more schemes for creating a local network that are not discussed in this article.

Watch the video: Local network at home via the Internet

The following publications will be devoted to the architecture (circuits and layout) of an apartment low-current switchboard, including a computer network. What is installed where, what cables are pulled where, what equipment is used. Therefore, I recommend subscribing to the newsletter, there is a lot of interesting things ahead! Subscription form at the bottom of the article.

How to connect several computers to each other and to the Internet, distributing the same speed to the Internet? Through such connections, you can not only use files located on another PC, the Internet, but also printers that are connected to any link of this network. Let's try to consider all the options for setting up a local network, from the simplest to the complex.

Let us divide the sequence of actions into two stages.

First, let’s analyze and discard the option when you only need to divide the Internet.

Connecting 2 or more computers to the Internet in one apartment without creating a local network

There are several ways to solve this issue:

1. Installing a router (router)- allows each computer to have access to the Internet without connecting the second one to the network. Since the IP address (identification details of a computer on the network) is assigned directly to the router, you will have one tariff for the provision of Internet services, and the Internet can be used by two computers at once.
2. Wi-fi technology- wireless network connection. It is possible when using a special set of equipment and its configuration.

1st stage. Setting up a local network

How to connect two computers to a network (Network Bridge)

One of the computers connects to the Internet, the second computer connects to the first. The main disadvantage in this case is that in order for the second computer to connect to the network, the first computer must also be on the network. And also, if your connection to the Internet is via a network card, then you need an additional network card to connect the second computer to the first, because the built-in network card is already occupied (it receives the Internet).

To connect two computers to each other and to the Internet via a Network Bridge, you will need:

1. Special cable (twisted pair) and possibly an additional network card.

Twisted pair cables can be obtained at radio markets or in specialized stores. It is made independently, using a special tool called a “crimp” and based on the required length of the cable itself. The pinout can be found on the Internet. Or you can ask to crimp the “vita” directly on the radio market (tell the seller that you need to crimp it for the type of connection “via network cards” or “comp-to-comp”, there is also a “comp-switch”) or buy a ready-made cable (if available), but it may be short. There is no factory-assembled cable like this, there is only a “comp switch” on sale, you can buy it, but then one end is cut off and crimped.

A twisted pair is an 8-core cable (eg UTP-5) with RJ-45 connectors. The ends of the cables are specially crimped. tool (special pliers) into the connectors in accordance with the colors of the ends. The order of crimping the network cable is as follows: BO-O-BZ-S-BS-Z-BK-K at both ends to connect to the hub. To connect a computer to a computer, one of the sides must have: BZ-Z-BO-S-BS-O-BK-K, where O-orange, Z-green, S-blue, K-brown, BO-white-orange, etc. etc. (don’t go into too much detail, but give the cable to knowledgeable people to crimp).

Twisted pair ($2-2.5 - 3 m)

Crimping tool

So, using a “twisted pair” we connect computers card-to-card (computer-to-computer connection type)!

Network card ($3-6)

2. After connecting 2 computers via cable, you need to configure them programmatically.

It is necessary that the computers be in the same workgroup, in the same address range and with different network names. The settings for these parameters are shown in the graphic diagram:

In this case, it is also advisable to set the IP addresses and subnet mask manually (the subnet mask is formed automatically when the IP address is specified). IP addresses can be selected in the range 192.168.0.xxx. In this case, on all computers on the local network, the IP address must begin with “192.168.0.xxx”, and the last three digits (xxx) must be different (otherwise there will be a conflict, since this is equivalent to two different houses having the same same address), and be in the range 0 - 255. The IP address setting is shown in the graphic diagram:

2.2. Setup using the wizard

To do this, go to “Control Panel” -> “Network Setup Wizard” and follow the wizard’s instructions.

You can also combine manual network setup and setup using a wizard, for example, after setting up the network using the wizard, specify the IP address.

After all this, you can give access (share) to some folders in the folder properties, in the “Access” tab. You can see shared folders by going to “My Computer” and selecting “Network Neighborhood” in the “List of Common Tasks”. Or, through Total Commander, go to “Network and Plugins” (disk button on the far right) -> “Entire Network” -> “Microsoft Windows Network”.

3. Setting up the printer.

3.1. Share a printer over a local network
To do this, go to Start - Control Panel - Printers and Faxes. We find the printer connected to this PC, right-click on it and select “Sharing...” in the context menu. After this, this printer will automatically be detected on other PCs connected to this local network.

3.2. Using a shared printer on your local network
On other PCs, go to Start - Control Panel - Printers and Faxes. Click on “Install a printer”, and then follow the instructions of the printer installation wizard.

I. Select “Network printer or printer connected to another computer”
Let's move on to the next stage.

II. We put a choice on “Browse printers”
We review printers on the local network.

III. If you plan to use this printer frequently or constantly, set it to “Use this printer as default?” - "Yes".

This completes the setup.

We connect 3 PCs via network cards using the Network Bridge type

It is not necessary to have a router or switch to connect 3 PCs; it is enough to buy another network card.
This option is cheaper than a switch, because... A switch is 3 times more expensive than a network card. To connect 3 computers, you need to select one of them and make it the master, the other two slaves. You need to install 2 network cards on the host computer. Then connect it to 2 other twisted pair cables and create a Network Bridge. Then share the Internet and local folders, while the slave computer must be constantly turned on and connected to the Internet.

We connect 3 or more computers (up to 20 PCs) via an external hub (switch or network hub)

How to connect 3 or more computers to each other and to the Internet, provided that you need to distribute the same speed to each?

The simplest solution is to buy a switch (Hab), with 5 or more ports, N cables (taking into account the distance of each from the expected location of the switch to each computer) with a computer-switch crimp (this has already been discussed above), where N is the number computers. After purchasing what you need, you need to connect the computers to the switch. After this, we configure the computers in the same way as with a connection between two computers.

We connect 3 or more computers (up to 6 PCs) via an internal hub (Hub)

We create a local area using an internal 5-port 100 Mbit hub

This option is perfect for organizing a network for home and small office (up to 6 computers), using a hub (or, as they also say, hub), for example, Genius GF4050C. The advantage of this PCI hub is that it is installed inside the computer like a regular expansion card. And for very little money ($45) you will get a 100 Megabit high-speed network in your office. But you should take into account that when you turn off the server (the PC where the hub is installed), the network will not work. However, the hub does not require an extra power outlet and does not take up space on the desk.

Internal hub

We connect 5-20 or more PCs through the Central PC Server

We create a network with a central server computer that serves as a switch.
This option is designed for large offices and corporate organizations. More than 20 PCs can be connected to each other. The central server computer with some server OS installed on it, for example, FreeBSD + switch, serves as a hub.

After the number of computers in the local area exceeds 20, you need to abandon the switch (hub) and install a central server, because With so many PCs, data transfer will slow down the computer. This occurs due to the extra load on the processor when transmitting/receiving data, since a lot of processing has to be done, for example, when a movie is downloaded (resources are spent on creating packets where the data is read, and parsing packets where the data is received). All this leads to a slowdown in the performance of both computers: the one who reads and, most of all, the one where the data is read. If it costs central. server, then it is he who is engaged in this matter, and not the client computers. That is why they install a central server. The switch takes over some of the processing, but this is not enough if there are a large number of PCs connected to the network.

But it is better, of course, to use a server with fewer computers, and there will be no slowdown, but in this case, you need to spend extra money on a server, i.e. to another PC. In addition, the server must be maintained by someone, which is why there is such a position as “System Administrator”. In general, if you don’t have money for an additional computer, you can connect up to 20 computers through a switch.

A local network server (Fig. 1.1) is a server that provides services to users of the Intranet network. Do not confuse “Intranet” with “Internet”. An Intranet is an internal corporate network, usually without Internet access.

Imagine a small office network. If you have a strong imagination, you can even imagine a large local area network located in a multi-story building. In such a network, the server can perform a wide variety of functions, for example, be a print server or a file server. Typically, on internal networks, servers perform only these functions. Depending on the type of activity of the organization in which the server is installed, quite often it is used as a database server.

It is generally advisable to allocate one computer each for the database server and file server, because if the load on the database server is quite large, and this is the case in most cases, then this will reduce the performance of the file server, and vice versa. If the server performance is poor, then, as always, the user suffers. In turn, the “suffering” of users will affect no one other than you, the administrator.

Rice. 1.1. LAN Server

In Fig. Figure 1.1 shows a small local network without Internet access. All workstations and the server itself are connected to the central device of the network - a hub. Instead of a hub, you can use (and it is preferable to use) a switch. Unlike a switch, a hub does not “know” which port a particular computer is connected to, and when one of the computers transmits a data packet, the hub repeats it to all its ports. Each computer on the network receives this packet and checks for its IP address in its header. If the destination IP address does not match the IP address of the computer that received the packet, then the packet is simply ignored. The switch transmits the packet only to the port to which the recipient is connected. Thanks to this, in addition to increasing security, the load on the network is reduced. This is how data packets are delivered from source to destination.

Apart from a hub or switch, in most cases no other network equipment is needed, with the possible exception of network cards. In the case of a long network, repeaters are used, which, passing the signal through themselves, amplify it. At its core, a repeater is a simple hub. The hub, minus some service functions, is a multiport repeater.

About choosing a network adapter and other hardware for the server is written in paragraph 7.6 “A few words before setting up the server.” Here you need to say a few words about choosing a switch. Previously, the main stumbling block to using switches was their high cost. Nowadays you can buy quite powerful switches for relatively little money. For a home or small office, we can recommend the LUCENT CAJUN P115G switch. It has 24 10/100Mb ports as well as 1 100FX fiber port. According to the latest data, its cost is about 230 US dollars.

A more expensive and more productive option for 48 ports 10/100 Mbit LUCENT-CAJUN P334T. This switch has an internal 8 Gbps bus and a modular design that allows you to install additional modules. The cost of the P334T model is about $900. When installing additional 100FX fiber optic ports, the cost will increase by approximately $150...250 depending on the number of ports.

Instructions

Start creating such a network by selecting a server computer. It must be powerful enough to process information flows passing through it to other computers or laptops. Another important requirement is the presence of a second network adapter.

Connect the Internet connection cable to the selected computer. Set up Internet access for this device.

Buy a network hub (switch). It is necessary in order to ensure the connection of other computers or laptops with the computer - server.

Now you need to configure the control computer. In Control Panel, open the Network and Connections folder. Internet" Right-click on the “external” adapter icon to bring up the drop-down menu. Select the “Properties” option and go to the “Advanced” tab. Check the “Allow others to use the connection...” checkbox. If you consider it necessary, allow other users to manage sharing by checking the appropriate box. Click OK.

Answer “Yes” to the warning about changing the IP address. The "internal" network adapter that connects the control computer to net y, a static network address 192.168.1.1 will be assigned. If one of the computers within the network plays the role of an FTP or WEB server, in the “Sharing” section, activate the “Settings” button. In the list of services, select the protocols that will be used within the network.

If you want to create your own service, click Add. In the new window, enter a description of the service, the IP address or name of the computer on which it will run, the port numbers, and the protocol type that will be used by the service.

The DCHP protocol, running on the control computer, automatically assigns network addresses to computers on the local network. The inconvenience will be that net will not work when the server is turned off. To avoid this, you can manually assign static IP addresses to client computers. Go to Control Panel and open the network connections icon. Right-click on the “Local Area Connection” icon to open the context menu and select the “Properties” option.

In the "Components" section, check "Internet Protocol (TCP/IP)" and activate "Properties". If you decide to set IP addresses manually, select “Use the following IP address.” You can use the address range 192.168.0.2 – 192.168.0.254. The address must be unique for each computer on the network. Assign the subnet mask value to 255.255.255.0. In the “Default gateway” field, enter the server network address 192.168.1.1.

Enter 192.168.1.1 for “Use the following DNS addresses.” Click "Advanced" and go to the DNS tab. In the Connection DNS Suffix field, enter MSHOME.NET. Select the “Register addresses for this connection” checkbox.

Launch Internet Explorer and go to the Tools menu. Select "Internet Options" and go to the "Connections" tab. Click “Install”, then “Next” to continue. Check “Connect to the Internet” and click “Next”. Select “Set up a connection manually” and click “Next” to continue. Specify “Connect via a persistent high-speed connection”, click “Next” again and on the next screen “Done”.

Sources:

• connect internet via network

Local net- This is one of the types of computer networks, limited to a certain territorial zone. Usually under local net They mean a set of devices located within certain limits (building, room, etc.).

Instructions

There are local area networks that are spread over kilometer areas. Despite the wide range of coverage, they are also considered local due to their specific construction scheme. Most local networks are built using Wi-Fi and Ethernet technologies. It is not advisable to use fiber optic cables within a local network, because ordinary twisted pair cables provide very impressive data transfer speeds over short distances.

To create modern local networks, a variety of equipment is used: network hubs, switches, routers, wireless access points, and so on. Typically, the classification of types of local networks is carried out according to the method of their administration. The type of network you choose depends on how it is managed and the design used to build it.

If routing is used on a local network, its level is usually very primitive. This is due to the fact that private local networks mostly consist of a small number of computers. A person who controls the operation of a local network and corrects errors in it is called a network administrator.

Typically, certain ranges of IP addresses are used within a local network. Internal addresses are used to connect computers with each other within a single local network. They are not available for connection from external computers. DHCP is used to prevent IP address conflicts. It allows a device that links multiple computers into a local net, give each PC a unique IP address.

There are many reasons why you need to gain access to your own local network from the global Internet: someone needs to connect in order to be able to view remote files and folders, some need access to security systems, cameras and other objects, someone “raised » web server and doesn’t want to pay for hosting, and someone needs advice on setting up a computer with a remote connection. There are many reasons, as well as options for solving the problem.

Formulation of the problem

According to network theory, to access the resources of a server or an individual computer, two main parameters are used - the IP address and the port on which the service is running, providing a connection to the resource using a specific protocol. Therefore, conscious configuration of the router, computer and server is necessary to ensure collaboration and correct access.

According to generally accepted standards, access for each protocol occurs via the following ports:

• Web server or access via HTTP protocol. Remote connection is provided via TCP ports 80 and 8080.
• Secure data transfer to the web server - port 443.
• The primary file transfer protocol, or FTP, uses port 21.
• Secure protocol for access from an SSH terminal on port 22. Typically used to perform device settings.
• An open protocol for connecting to a remote terminal is TCP - port 23.
• Access to SMTP and POP3 mail servers uses ports 25 and 110, respectively.

Specialized programs use their own ports, for example, to access the local network from the Internet using the VNC program, you need to open port 5900, Radmin - 4899, and to connect to the built-in Windows Remote Desktop Service (RDC) - 3389.

It is worth noting that opening ports on the server adds vulnerability and attracts attackers. Therefore, ports are opened only as needed, i.e. if there is no need to use access via the protocol, then the port used by the service must be closed. A good practice is to initially deny access to any service and then adjust access to the service as needed. Particularly vulnerable are ports that do not provide user authorization, for example, port 21 in Windows is open by default, which makes it possible for unauthorized connections.

Once specific goals have been defined, e.g. why and what resources you need access to, you can start setting up remote access.

Setting up a router - address translation

Address translation or forwarding is necessary for the router to switch the internal local address to an external one. This means that when connecting, the IP that “looks” at the Internet will be indicated. An external IP address can be “gray” (dynamic) or “white” (static), but the specifics of setting up a router in each case are beyond the scope of the article, so setting a static address will be used as an example.

Access is configured using the example of a Zyxel router from the Keenetic family with firmware version v2. This router is well suited for the implementation of the assigned tasks. To configure, you need to go to the configuration page through the web interface.

The computer connects to the router via DHCP. This means that every time a request is made to add to the network, it receives a new IP address. To provide access to the local network via the Internet, it is necessary to assign an IP to each device. This is done on the main page in the “Home Network” tab by clicking the green arrow (when hovered, a hint appears - “Assign an IP address to the device”).

Next, in the configuration, select the “Security” menu item and the “Network Address Translation” tab. On this tab, you need to add your own access rule and socket broadcast to the Internet for each selected service. A socket is a combination of an IP address and a port number, for example, 192.168.1.1:8080 for connecting to a Web server.

In the window that opens by clicking the “Add Rule” button, you need to specify specific fields to create a rule:

• “Interface” - select a WAN interface from the drop-down list. There may be several options to choose from depending on the provider settings: PPTP, PPPoE, L2TP or ISP (Broadband Connection).
• “Protocol” - select a protocol from the list for remotely connecting incoming connections.
• “Redirect to address” - indicates the local address of the machine for which you want to redirect.
• “New destination port number” is the local port number of the specified computer.

These steps must be performed for each device on the local network and for each protocol, i.e. Each device and service on it will have a separate rule. Don't forget to click the "Save" button. After all the necessary rules have been added, you can begin setting up a specific computer.

Setting up access on a Windows computer

To configure your computer, you need to open ports on it for incoming connections. This is done in the standard Windows Firewall program. The program is launched from “Control Panel - System and Security - Firewall” or “Start - Run - cmd - firewall.cpl”.

Ports are opened as follows:

• In the program, you need to select the “Advanced options” menu item.
• A new window will open that will allow you to configure advanced computer protection settings.
• When you click the “Rules for incoming connections - Create rule” button, the “Rule Creation Wizard” modal dialog opens.
• The first item in the dialog allows you to select the type of rule: for a specific program (usually, when installing a program, you add rules yourself to work correctly), for a port, preset rules and custom rules.
• You need to select the “For port” switch.
• The protocol type is selected (TCP or UDP), and a specific port or range of ports separated by a hyphen is entered in the corresponding field.
• After selecting the port, the rule itself is created, i.e. connection is allowed or denied. In our case, when opening a port, you need to check the switch next to “Allow connection”.
• The network connection profile is determined. You can check the boxes next to all profiles.
• At the last point, you need to come up with a name for the rule and click “Finish”.

This opens a port on the computer. Similarly, as in a router, you need to create a separate rule for each port. To avoid adding access to each port, you can completely disable the firewall, but this is strongly not recommended.

Setting up access using third-party programs

Accessing a local network from the Internet when using third-party specialized programs usually does not require special knowledge or skills. It is enough that the program is installed on the client machine and launched on the server. In some cases, you will need to open addresses on your router for translation.

An example is the popular TeamVewer program. It allows you to connect to a remote desktop, transfer and download files and other functions. To connect, you just need to know the UserID and password of the computer you want to connect to.

Owners of home PCs are often faced with the need to connect several computers into a local network, but for a number of reasons (distance from each other, etc.) this may not be feasible using conventional methods. And here specialized utilities that can create virtual local networks between users connected to the Internet will come to the rescue.
The most obvious area of ​​application for such utilities is multiplayer games that do not support online mode, but the matter is by no means limited to them. There are all the usual things available on a local network: viewing the contents of public folders, working with network printers, listening to other users' iTunes library, and even controlling other people's computers using the built-in Remote Desktop tools.

Developer LogMeIn

Size 3.1 MB

Works without an account; there are ways to display real network PCs in a virtual environment

Verdict

Hamachi has long been the most popular utility for creating virtual networks. True, after it was acquired by a large company LogMeIn, specializing in network software, certain concerns arose for its future, but, fortunately, they were in vain - for non-commercial use the program remains free, with a limit of 16 clients on the network. If there is a need to connect more people, you should consider purchasing a license that allows you to use the utility to connect 256 computers. This opportunity will cost $200 per year.

Unlike EasyVPN, discussed below, Hamachi can be used without creating an account: by pressing just one button, the user connects to the server and receives an IP address. Next, the procedure for creating a virtual network or connecting to an existing one looks exactly the same as in Comodo.

Let us note some of the advantages of those who are not too lazy to spend a few minutes getting a free account. In this case, they will not have to re-configure the program on a new PC each time, and they will also be able to manage their account through the web interface.

In operating mode without authorization, which is called Mesh, only computers associated with the virtual network are visible. If you have an account, the mode appears Gateway virtual networking, allowing them to access all the resources of another user's real local network. In mode Hub-and-spoke You can only work with selected PCs on a real network.

Please note that Hamachi does not have a remote desktop control feature, as LogMeIn has a separate utility for this. The program can also enable/disable encryption and traffic compression.

One of the most interesting features of Hamachi is the creation, using the web interface, of a special utility installer that can automatically add other users to the required virtual network. You can get such a distribution kit after simple operations on the website; you can use the link to the program multiple times.

Freeware (for non-commercial use)

Developer Comodo

Size 6.44 MB

Rich functionality; easy setup

Inability to use the same account on multiple PCs at the same time

Verdict

Comodo EasyVPN is a relatively new development from a company known for several good programs that are free for non-commercial use (Comodo Firewall, Comodo Backup, Comodo Antivirus, etc.). The utility for creating a virtual network, which is also distributed free of charge, was no exception.

The advantages of EasyVPN include its simple user-friendly interface and easy setup of a virtual network. The user needs to create an account - this may not be very convenient, but it will allow you to forget about re-configuring the program (all old options will be picked up again even after installing it on a new PC). Unfortunately, it is not possible to log in under one account from several computers at the same time - when you activate it on one PC, the other will be automatically disconnected from the server. This happens because the account is associated with one specific static IP address.

Comodo EasyVPN not only allows you to create virtual local networks for games, but also has a built-in chat with the function of transferring files over a secure channel (however, by default, absolutely all traffic is encrypted, not just files). Also part of EasyVPN is the ability to remotely control a PC, and all these additional options do not require special settings - for example, to activate Remote Desktop, you literally need one click on the local computer and confirmation to open access from the user at the other end of the line. In the settings you can set the ratio of picture quality/transmission speed.

EasyVPN also allows for the deployment of private, password-protected virtual networks and provides the ability to disable traffic encryption.

The Comodo utility only works in Windows, but it supports all the latest editions of Microsoft OS, including 64-bit versions.

Freeware

Developer AWIT Systems

Website

Size 12.2 MB

BitTorrent support for file sharing; launch on multiple PCs under one account

Unusual interface

Verdict

The Remobo utility is currently in beta testing, so any functions of the program are available to everyone. In the future, however, it is planned to introduce premium accounts with specific features, but free basic accounts will remain available to any users.

In general, Remobo is functionally the same as its competitors, although it looks somewhat weaker. One of the features of this program is a specific file sharing option - just add the desired set of folders and files to the list, and they become available for viewing and downloading by other users. The most interesting thing is that information is exchanged using the BitTorrent protocol; for this, a client of the same name is even installed along with the program. This solution can increase the speed of data exchange if the same files are available on different computers of several users at once.

Remobo also has a built-in utility for remote desktop management and a messaging program.

Remobo runs on Mac OS X and Linux, supports 64-bit versions of Windows. Unlike Comodo EasyVPN, it allows you to use one account to run the program on several computers at once - thus, the user can combine all of their machines into a virtual network.

Freeware (open source)

Developer

Website

Size 1.92 MB

Support for common messaging protocols; free use for commercial purposes

Average functionality

Verdict

Wippien differs from other utilities primarily in that it can also be used for commercial purposes, since the project is being developed as open source and anyone can, if necessary, download not only the program itself, but also its source codes.

Wippien is based on Jabber, so you can either use an existing JID as an account or register a new account like [email protected].

The utility supports communication between users and, unlike other programs in this review, allows you to do this not only via the internal protocol, but also in such familiar networks as ICQ, MSN, AIM and Google Talk.

For those who do not need additional features, a stripped-down version of Wippien is offered - the MiniVPN utility. This program distribution is distributed without support for the messaging function. However, to use it you still need to have the full version of Wippien installed, which should be run at least once in order for the settings to be saved in the system.

In addition to MiniVPN, another separate application is available - WippienService, which allows you to run Wippien on the system as a service and thus work with the computer, even if the user is logged out of his Windows account.

Wippien can also function in 64-bit versions of Windows; for this you need to separately download and install the 64-bit driver. There is also a beta Wippien console client for Linux.

Freeware

Developer

Website

Size 8.4 MB

Cross-platform; installation on routers; proxy support

Works as a server-client (you can create a “one-way” virtual network)

Verdict

NeoRouter is the most cross-platform utility of the above. It can be installed not only on all the latest versions of Windows (starting with Windows 2000) and Mac OS X (starting with Tiger), but also works on almost all major Linux distributions (including 64-bit versions) and, most interestingly, can be installed to routers using tomato, fon and openwrt firmware, which expand the capabilities of these devices.

NeoRouter differs from other participants in that it operates on the server-client principle. You need to install the server part on one of your computers and then connect to it using a separate Network Explorer program. A direct P2P connection is created between PCs, which allows data exchange faster than with an intermediate link. To connect to a remote computer, it is not necessary to install NeoRouter on each machine. To do this, just use the portable version of the program, recorded on a flash drive.

Another feature of NeoRouter is proxy support (HTTP, SOCKS4 and SOCKS5); In addition, the program's functionality can be expanded using a small number of add-ons available on the developer's website.

Setting up a virtual local network using Comodo EasyVPN as an example

Let's consider the process of creating and connecting to a virtual network using the example of two people. The procedure is almost identical in all programs, we will be based on Comodo EasyVPN.

So, both users install the utility from the manufacturer’s website (they should agree to add a new virtual adapter to the system when the installer asks about it). After launching EasyVPN, each of them needs to create an account, which can be done directly from the program by clicking on the button Register a new account.

To deploy a network, one of the users selects from the menu Networks – Create a new network. In the window that appears, you should specify the network name and password (option Enable VPN We recommend leaving it on). After this, another user selects the item on his computer Networks – Join a network and enters the network name and password in the dialog that appears.

Now both are on the same virtual network and can, for example, play computer games over the LAN.

Another important point concerns the first launch of the utility and its attempt to access the Internet. The firewall installed on the system may ask whether the new program should be added to the white list. You must answer in the affirmative, otherwise you will not be able to set up a virtual network.

A local network makes it possible to move files between computers, launch and use games and programs together, and share the Internet. Connecting computers into a common network helps protect owners from viruses entering their systems. There are several ways to connect PCs with different operating systems into a single local network.

Hardware interconnection of computers

Hardware aggregation uses technical devices with which several PCs gain access to a common network.

Via cable

The simplest connection option. To combine, you will need a special cable, a cross-over. Both ends of the cable are plugged into computers. One device transmits the Internet connection to another, which unites them into a network.

The main disadvantages of the method:

• Only 2 devices can be combined;
• There is a limitation on cable length;
• The additional cable gets in the way and can get tangled.

Via router

Using a router, you can connect any number of computers and laptops with a local network. A router is connected to one of the devices; it will distribute the network to the rest of the PCs. It is important that these devices support Wi-Fi connection mode. In this case, the IP address and access between PCs are set automatically.

The only thing that is required from the user is to enter the same names for the computers in the Connection Center.

If the device’s memory stores important files that other network users should not have access to, just right-click on the folder and go to access settings.

Setting up a local network

Turning on devices and connecting a cable or router to them are not the only actions required to create a local network. When merging, it is important to configure the computers correctly.

When connected via cable

The following tuning algorithm must be carried out on both computers to which the cable is connected.

Setting up a workgroup and PC name

This action will allow you to set the same name for devices connected by cable. To do this you need:

1. Press the key combination Win+R;
2. 2. Enter the universal command in the input field sysdm.cpl (suitable for any versionWindows);
3. Click the “Change” button;
4. Enter a name for the workgroup computers (required in Latin);
5. Save.

The same name is entered on the second device.

Setting up IP, gateways and masks, DNS

On modern operating systems Windows 8-10, this procedure consists of simply checking the boxes in the Network Control Center.

Owners of PCs with older system versions need to go through the following algorithm:

After this, the computers will be united into a single network.

Opening access to files, folders, printer

As mentioned above, on Windows 8-10, the procedure for sharing access and setting up a network comes down to selecting parameters in the Connection Center. Additionally, you can set general passwords for your PC.

On other versions of Windows:

1. Start button;
2. Control Panel;
3. Folders settings;
4. Click on the item to use the sharing wizard;
5. Save and close;
6. Go to the “My Computer” window;
7. Find the PC name, right-click and click “Change”;
8. In the settings, click the checkbox next to the relationship between the device and the workgroup;
9. Go to the access tab, confirm permission for devices.

Internet access on a second PC

If the donor computer is connected to the Internet, the second device can also be connected to the network. To do this, you need to set the same connection settings as on the donor.

When connecting via a router

In this case, fewer steps are required from the user to configure connections on computers. Wi-Fi connection requires less settings and is installed automatically.

Checking connections with computers

You need to reboot the router using the button on the back panel. This way, the configuration of the router itself will be correct, as specified by the manufacturers. The router automatically assigns addresses to computers that are within its network area.

You can check whether all computers are connected to the router via Wi-Fi in the following way:

1. Open a browser, enter 192.168.1.1 in the address bar;
2. Enter the DHCP tab;
3. Find the IP address of the PC that will be connected to the local network;
4. Launch the command line, enter “ping IP of another PC”;
5. Wait until the check is completed.