Router, also known as gateway equipment. The most basic function of the router is to transfer data from one subnet to another subnet, a more professional statement is used to connect multiple logical separation of a network of equipment.
The router has the function of judging the network address and selecting the IP path. It can establish a flexible connection in a multi-network interconnection environment. It can connect all kinds of subnets with completely different data packets and media access methods. The router only accepts the source station or other router Of the information, is a network layer of an Internet device.Through a router can easily achieve multiple devices to share a broadband network cable network to achieve the needs of multiple devices at the same time the Internet, the router's biggest role is to solve the needs of multi-device sharing network.