Broadband Internet connection or high speed is what most users use at home. Along with high-speed Internet, many users can also use a router to allow multiple computers to connect to the Internet. This document describes how a router used to connect multiple computers. To make it easier to understand, I, in which this comparison, how to live your Internet-connected computer.
What is an IP address?
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IP addresses are a series of numbers inForm: nnn, where nnn is a number of 1-3 digits. An IP address is unique for each computer on a network, just like your house has a unique address. For a connection to the Internet has an IP address from your Internet service provider (ISP) delivered. In some cases, the ISP will give you more than one IP address, which you can connect to multiple computers. As discussed below, but you can still more computers with a single IP addressAddress.
Connecting a single computer
Connecting a single computer for your high-speed Internet very easy to do. Simply connect a network cable into your modem, and then the network card in your computer. The computer will then be assigned an IP address from your ISP. For example, if the provider has been assigned the IP address 24.24.50.17, then the computer has the IP address.
If you make a request to a server, such as a website, learn about Web servers,The IP address of the request. The information is then sent via the Internet and back to your computer. This is comparable, if someone sends you e-mail to your home. The address on the mail you back home and not elsewhere.
Connecting multiple computers
How can multiple computers are connected, even an address assigned? If you make a request for a web page, as it aims to know which computer asked for what page? Take our home analogy a stepfurther. Let's say that instead of living in a house that you live in an apartment. If you receive mail, not only address but also a dish. This number is located inside your home and each apartment has its own number. Similarly, more than one computer connected to the Internet, though each had its own unique local IP address. This can be managed by a router.
A router is a piece of hardware that directly to the modem. Each computeris then connected to the router, instead of the modem. Now, instead of the computer with the IP address from your ISP, the router is now that the IP address assigned. This is similar to the router as a residence.
The beauty of a router that assign their own local IP addresses. If you have a computer connected to the router now receives an IP address assigned by the router, as each apartment has its own number. Well, if you have a brandRequest for a Web page, the request sent from the same IP address, but this time is assigned to the router. If the Web page is returned, the router receives the request and sends it locally on your computer, the page requested.
The router also has its own local address, which is similar to the IP addresses of local computers. So now the router has assigned two addresses: external contact and a local ISP provided. This allows the routerThe connection to the Internet and local network.
Note: The address 192.168.xxx.xxx are special IP addresses for LAN (local area).
Managing a Web or FTP server on the network
Let's take a look at this scenario. Do you have a router connecting multiple computers to the Internet. But now you want to create a Web or FTP server. No problem. To set the required software on a computer network, said someone outside the local network IP addressYour FTP server and try to combine them. Then they discover that they can not connect. Why? His mailing something someone like you simply stating your home number and no address.
The IP address of your computer on the network. You can connect to computers on the network, but not from the Internet. You must use your ISP assigned IP address (assigned to the router) to have someone from the Internet to connect to the FTP server.The problem is that the router has assigned that IP and not the computer as an IP address must be unique, as can two computers have the same IP? The answer: it is not possible, but do not.
The routers have the ability to retrieve information about a connection to a specific computer to transmit. A port is a channel number, the data can be sent over a network. You can not physically see, as it is a widely used virtual channel networking solutions for sending / receiving data. For FTP serversDefault port is 21, but another port can be used.
Open the router configuration and look for the port forwarding option. Enter the internal IP address of the FTP server and the port number and then save this information. Now, if a user access to the FTP site, have the ISP IP address that is assigned to the router. The router then realize that the data sent to port 21 and then guides them to the FTP server automatically. A web server can be configured the sameGone, but the default port is 80, in general,
Note: By default, a router connected to dynamic IP addresses to computers. This means that the first computer is connected to the router, the first IP address available to receive, and the next is to get the second, and so on. If you manage an FTP server, it can be easier to assign a static IP address to the computer to make sure that the FTP server is always the same IP address.
This article discussed how to connect one ormore computers sharing an Internet connection. It 'important to note the following:
If you connect a computer directly to the modem, so that the computer's IP address assigned by your ISP. When using a router, the router's IP address is assigned by your ISP. Each computer is connected to the router has a local address assigned by the router. A router is the IP address of the ISP and a local IP address. This allows both the connection to the Internetand network. When you set up a computer such as FTP, Web or other servers to communicate over the Internet, it is important to use the IP address of the router to access the server. You then have the necessary port forwarding on your server.
For more information see the blog is technically easy.
How to connect multiple computers to a broadband Internet connection
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