Router: A device that forwards data packets
A router is in fact a device that forwards data packets along with networks. A router remains connected to at least two networks, commonly two LANs or WANs or sometimes a LAN and its ISP’s network. Routers are generally located at gateways, the places or the juncture where two or more networks connect, and are the critical device that keeps data flowing between two networks and also keeps the networks connected to the Internet. When data is sent between locations on one network or from one network to a second network the data is always seen and directed to the perfect and correct location via the router. The routers also use protocols such as ICMP to establish communication with each other and configure the best route between any two hosts. The Internet is meant for establishing a global network that connects millions of computers and smaller networks and here routers play a crucial role
Router is ideal for every home user who uses computers. Users who want to set-up or establish a LAN or local Area Network or WLAN (wireless LAN) and want to connect all computers to the Internet without paying a full broadband subscription service then router is the best and the most reliable option. Most of the time an ISP allows users to use a router and connect multiple computers to a single Internet connection by paying a nominal fee for each additional computer sharing the connection.
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