A network router is a device that can connect two or more packet-switched subnetworks and networks. It primarily has two functions. First, network routers can manage the traffic between these connected networks by forwarding the data packets to the intended IP addresses. They can also allow multiple devices to connect and use the same internet connection without interruptions. They function smoothly by assigning the local IP addresses to each gadget available on the network. Network routers are available in different groups of devices, catering to the specific requirements of all organizations.