You can use a router device as contemporary control to share an Internet connection or devices on a network so that each device does not have to be individually connected to the device you want to share. Routers are several inches wide and usually have a small light or a set of flashing lights to show that the router is working. Some routers are stationery, and others are horizontal; others have visible antennas and others are not.
Share Internet Access
A router helps to share Internet access in two ways: wirelessly or with cables called Ethernet network cables. All routers are designed to connect devices using Ethernet cables and allow you to share the incoming Internet connection between more than one computer. To share the wired connection, connect to the Internet with the router and connect each computer to the router using a separate Ethernet cable. Wireless routers have this function, but they increase the ability to send the same signal over the air over a relatively short distance, such as within the confines of a home or office building. Available devices have access to Wi-Fi, such as desktop computers or laptops, tablets,
In addition to sharing an Internet connection, routers allow computers to come together to form a small network of computers. Using this type of network, computers can share files and access a network printer. You can use this functionality with or without sharing an Internet connection, although a little more installation is required to share just one Internet connection.
Firewall And Network Security
Since wireless routers make the network, and therefore every computer on the network, accessible to any Wi-Fi device within the range of the signal, third parties can access it for harmful purposes. The way to resolve this is for the router to act as a firewall, restricting access by any unauthorized person. This is done with security keys similar to passwords. Only devices preloaded with the security key or used by users who can enter the correct password have access to the network.
Add Functionality To A Network.
Some routers have additional functionality with ports designed to allow sharing devices that can connect to that port. An example is a router with an integrated USB port, which allows you to share a USB printer or a USB storage device on the network. This works differently from the printer access and swap files stored on or connected to one of the computers on the network. Another option is to share devices connected directly to the router using an Ethernet cable, such as a storage device connected to the network.