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Router definition

An intelligent connecting device that can send packets to the correct LAN segment to take them to their destination. Routers link LAN segments at the network layer of the OSI Reference Model for computer-to-computer communications. The networks connected by routers can use similar or different networking protocols. A router may be one or more of the following types: Central Acts as a network backbone, connecting many LANs. Peripheral Connects individual LANs to either a central router or to another peripheral router. Local Operates within its LAN driver's cable-length limitations. Remote Connects beyond its device driver limitations, perhaps through a modem or remote connection. Internal Part of a network file server. External Located in a workstation on the network.