We propose a method for predicting a port number of a NAT equipment according to results of inquiring a STUN server twice in this invention. Laminated materials and a method of producing the same are also provided. The battery gauge circuitry also includes a logic device that determines if at least one of the switches is open. A plurality of IO resources that are used to provide IO to the unallocated storage blocks are then interrupted. Each flow is processed by functional blocks along the data path in accordance with one of several application types, the application type for a flow being predetermined by the host processor of the router or switch. When data refresh is to be carried out in a standby mode, the signal for selecting the way is maintained at an \u201cH\u201d level and is not reset to an \u201cL\u201d level while the corresponding upper address is designated.