what is a router used for
Router Definition. A router is an electronic device and/or software that connects at least two networks and forwards packets among them according to the information in the packet headers and routing tables.Routers are fundamental to the operation of the Internet and other complex networks (such as enterprise-wide networks). brouter is a single devices that serves as both a router and a bridge. It will route some packets based on network layer information and forward other packets based on data link layer (i.e., the layer at which bridges operate) information.