![]() The whole broadband will be used to transmit data in one direction.įull Duplex Modem – This modem allows transmission of signal in both directions at the same time. Half Duplex Modem – This modem allows transmission of signal in one direction only at any given point in time. It is also referred to as a wireless modem. ![]() Type – There are different types of modems available.ĭial-up Modem – This modem helps you to get an internet connection through a telephone line.ĭSL Modem – This modem comes with a twisted pair cable for faster transmission of signals in comparison to dial-up modems.Ĭable Modem – This modem helps you to get an internet connection through a television line.īroadband Modem – This is the most popular modem for getting a broadband speed internet connection. To simplify the working, we can say that it brings the requested information from the internet to the network from where the request was sent. Thereby, it transforms the transmitted data in its original form. On the other side, it decodes the carrier signal and then demodulates the information transmitted. It modulates the analog signal to digital information for easy transmission. A modem is a device that modules signal and demodulates information. The term ‘MODEM’ stands for ‘Modulator-Demodulator’. But on a deeper level, many differences are discussed below. A router distributes the connection on multiple devices. In layman’s terms, a modem brings an internet connection to your home or office(network). Type – There are different types of routers available.Type – There are different types of modems available.The static IP address you will be assigned will be a public IP address, which means that data can be sent directly to your computer. You will configure your computer to use that IP address for as long as you have the DSL service. If you are connecting only one computer to your DSL modem, it will use the static IP address that comes with your DSL service (please see the instruction sheet in your DSL kit for which IP address you have been assigned). A static IP address has to be manually configured on the device that is going to use it. The opposite of a dynamically assigned IP address is a static IP address. Computers are set by default to ask for an IP address dynamically. ![]() It also means that you do not have to configure your computer’s IP address manually. When the router keeps track of IP address assignments, that means that a human does not have to do it. The next time the computer asks for an IP address, it might get the same IP that the router assigned to it before, or it might get a different one. It uses a network protocol called DHCP ( Dynamic Host Configuration Protocol).Īfter the computer has used an IP address and has disconnected from the router, the address can be put back into the pool of available IP addresses. This process of computers asking for an IP address from the router is called “dynamic” IP address assignment. The router makes sure that two computers are not assigned the same IP address. When a computer connects to it and asks for an IP address, the router picks an IP address from the pool and assigns it to the computer. The router has a “pool” of IP addresses that it keeps track of. One of the primary jobs of a router is to assign IP addresses to the computers on a home network. This is the side of the router that faces the home network’s computers and has a private IP address.ĪSSIGNING IP ADDRESSES TO COMPUTERS DYNAMICALLY The second router interface is called the LAN (Local Area Network) interface. This is the side of the router that faces the Internet and has a public IP address. The first router interface is called the WAN (Wide Area Network) interface. An IP address is assigned to each of the router’s two “interfaces”. Routers are special because they have two IP addresses. ![]() It will deliver the data to the router (which has a public IP address) and then the router will deliver the data to the computer that has the private IP address. A Web server will not deliver Internet data to a private IP address. Private IP addresses are special IP addresses that are known only to a router and its home network. Public IPs are used by routers and by computers connected directly to DSL modems without a router. There are two types of IP addresses – public and private. An IP address is a series of four numbers separated by dots: IP addresses identify where the computer is located on the Internet so that Web servers and mail servers can send data to the correct computer. Every computer that connects to the Internet has to have an IP address assigned to it.
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