Patent ID: 9413595
Filing Date: 2016-08-09
CPC Classification: G06F,H04L

Claim Text:
1. A management server comprising a memory and a processor connected to the memory, the processor being configured to execute a process including managing a physical server that operates a virtual machine, the process further comprising: specifying, when the management server is compatible with an IPv4 network and when receiving a connection request to establish a connection to the physical server from a relay device via a virtual private network, the relay device being connected to a client network to which an information processing apparatus belongs, an identifier, an interface identified thereby being not used for a virtual machine meeting the connection request, wherein the interface is used for connecting the information processing apparatus to the virtual machine and the identifier corresponds to a zone index of an IPv6 address for distinguishing the client network from another client network, an identifier that is stored in association with a virtual machine in a storage unit indicating that an interface identified thereby is currently used; instructing the virtual machine to virtually generate an address translating unit, the generated address translating unit translating an IPv4 address of a transmission destination of the information processing apparatus belonging to the client network to an IPv6 address and setting the translated IPv6 address on an interface side of the generated address translating unit, the interface side corresponding to the interface identified by the specified identifier; connecting the relay device and the virtual machine based on an address of a virtual switch corresponding to the interface identified by the specified identifier and an address of the relay device, the virtual machine distinguishing the client network to which the information processing apparatus belongs from another client network by the translated IPv6 address and the specified identifier; and storing the specified identifier in the storage unit in association with the virtual machine and the client network connected to the relay device that is connected to the virtual machine at the connecting.