Abstract: A method and system for train inauguration over an internet protocol (IP) based communication network. The present invention describes a method of train inauguration that includes identifying a leading car of a plurality of cars that form a train. The train includes at least one unit of cars such that a first unit includes the leading car. Network and configuration information is discovered for cars in the train using a discovery protocol. The network and configuration information is broadcast to units in the train. Car and unit topology of the train is generated based on the network and configuration information and the leading car that is identified. NAT translation addresses are generated for fixed IP addresses of devices in the plurality of cars. Routing information is exchanged between routers to enable communication between devices in the train using the NAT translation addresses.

Abstract: A method and system for hitless wireless roaming in a mobile environment. The present invention describes a system for wireless connectivity in fast moving trains. The system comprises a router for routing Internet Protocol (IP) communication signals to and from a wireless network. The router is located on an object. A first antenna is also located on the object and is communicatively coupled to the router for transmitting the communication signals to and from a plurality of access points on the wireless network. A second antenna is also communicatively coupled to the router for transmitting the communication signals to and from the plurality of access points. The second antenna is positioned a distance from the first antenna on the object that allows the router continuous access to the wireless network as the first antenna and the second antenna roam through the wireless network while the object is moving.