Router is an active device in a computer network that connects computer networks that operate on the same network protocol. The router forwards (routes) data packets to the target device with the most appropriate way. A router operates on the third level of the OSI model.
What is router for?
The router is used to connect two identical computer networks. This is a technical device (active network element). Routers are one of the key elements of Internet, which is actually made up of different networks connected by routers. Routing is carried out over different protocols, most commonly over IP protocol.