Patent ID: 7315888

Claim:
A management protocol proxy between a private network and a global network, the private and global networks being connected via an Internet Protocol (IP) Network Address Translator (NAT) for translating between a private address system of the private network and a global address system of the global network, the management protocol proxy comprising: an address translation processing unit that receives a packet containing management protocol data transmitted from a monitored apparatus on the private network, and translates a transmission source address contained in the received packet into a virtual address belonging to a management address system different from the private and global address systems to form management protocol proxy data comprising the virtual address and the management protocol data; an assembly/disassembly processing unit that generates a management protocol proxy data packet including the management protocol proxy data, an address of the management protocol proxy as a transmission source address of the management protocol proxy data packet, and an address of another management protocol proxy as a transmission destination address of the management protocol proxy data packet; and an interproxy communication unit that transmits the management protocol proxy data packet to said another management protocol proxy designated by the transmission destination address, via the global network.