The operation of core router is to restrict network broadcast to the LAN, to act as default gateway, to move data between different networks and to advertise loop free path. The technology of Wi-Fi, Worldwide interoperability for Microwave Access (WiMAX), General Packet Radio Services (GPRS), Enhanced Data rates for GSM Evolution (EDGE), EVolution Data Optimized (EV-DO) which are used for remote data access. A router must be able to support multiple telecommunications interfaces of the highest speed in use in the core internet and must be able to forward IP packets at full speed on all of them.