(n.) A device that forwards data
packets along networks. A router is connected to at least two networks,
commonly two LANs or WANs or a LAN and its ISPís network. Routers are
located at gateways, the places where two or more networks connect.
Routers use headers and forwarding tables
to determine the best path for forwarding the packets, and they use
protocols such as ICMP to communicate with each other and configure the
best route between any two hosts.
Very little filtering of data is done