Patent ID: 8787390

Claim:
A method of operating a mobile vehicular network for providing a reachability service to connect portable nodes of the mobile vehicular network to at least one external fixed network via at least one mobile router, comprising: registering a group of temporary name identifiers on behalf of several portable nodes attached to the mobile vehicular network by the mobile router; allocating the temporary name identifiers to the portable nodes; mapping the temporary name identifiers to current reachable addresses of the portable nodes by at least one proxy name server; updating the at least one proxy name server by mobile routers of the mobile vehicular network cooperatively sending registration and mobility update messages with recent address information of the portable nodes in response to any address change to ensure that sufficient information to resolve naming requests is available in the at least one proxy name server; and providing, by the mobile router, the at least one proxy name server with an address to forward a name resolving request to a local name server in case the proxy name server is unable to resolve a naming request.