Patent ID: 7873037

Claim:
An information processing apparatus for communicating with a different apparatus through one or more communication processing apparatus, said information processing apparatus comprising: a repetitive packet transmission section for transmitting a repetitive packet of a packet repeatedly transmitted through the one or more communication processing apparatus; a function determination section for determining whether or not a nearest of the one or more communication processing apparatus has a port mapping setting function; a port mapping setting section for setting port mapping for the nearest of the one or more communication processing apparatus if said function determination section determines that the nearest of the one or more communication processing apparatus has a port mapping setting function; and a transmission control section for controlling said repetitive packet transmission section so as to: (i) transmit the repetitive packet in a shorter period than a port maintaining time of the one or more communication processing apparatus if said function determination section does not determine that the nearest of the one or more communication processing apparatus has a port mapping setting function, and (ii) not transmit the repetitive packet if said function determination section determines that the nearest of the one or more communication processing apparatus has a port mapping setting function.