Network management system
First Claim
1. 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.
1 Assignment
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Accused Products
Abstract
Data communication is carried out between nodes each not having a global address. In a network management system in which a first network and a second network which have the different address systems are connected to each other through an address translator, each of the first and second networks has a node and a management protocol proxy; and each of the management protocol proxies includes a management protocol proxy data generating unit for treating, as management protocol proxy data, a transmission source address, a transmission destination address and data in a protocol data unit which are contained in a packet of a management protocol sent from the associated one of the nodes, and an address translation unit for translating the address information in the protocol data unit contained in the management protocol proxy data sent from the other management protocol proxy.
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Citations
25 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17)
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10. A method of performing network management 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 method comprising:
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translating a transmission source address of a packet containing management protocol data received from a monitored apparatus on the private network to 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; generating a management protocol proxy data packet including the management protocol proxy data, an address of a management protocol proxy which is between the private and global networks 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 transmitting the management protocol proxy data packet to said another management protocol proxy designated by the transmission destination address, via the global network.
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18. A program product comprising a computer readable storage medium and executable programming embodied on the medium, wherein execution of the programming causes a programmable device to perform steps for operation as a management protocol proxy between a private network and a global network 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 steps comprising:
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translating a transmission source address of a packet containing management protocol data received from a monitored apparatus on the private network to 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; generating 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 transmitting the management protocol proxy data packet to said another management protocol proxy designated by the transmission destination address, via the global network. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification