Relay device

A relay device which relays a relay packet which is transmitted from a first network to a second network, the relay device comprising:

• a receiver to receive the relay packet from the first network;
• an information obtaining unit to obtain data type information for identifying a type of data which is transmitted and received by the relay packet and address information which indicates a destination address and a source address of the relay packet;
• an object information storage unit to store a combination of a destination address and a source address of an object packet in which communication quality is controlled by the second network;
• a parameter storage unit to store the control parameter which is used for controlling communication quality in the second network, so as to be associated with a type of transfer data indicating data transferred to the second network;
• and
• a parameter setting unit to set the control parameter which is associated with transfer data of a same type as data identified by the data type information, to the relay packet when a combination matching the address information is stored in the object information storage unit, and to output the relay packet to which the control parameter is set to the second network.

A non-transitory storage medium storing a program for causing a relay device, which relays a packet which is transmitted from a first network to a second network, to execute a process comprising:

• receiving the packet from the first network;
• obtaining data type information for identifying a type of data which is transmitted and received by the packet;
• storing a control parameter which is used for controlling communication quality in the second network, so as to be associated with a type of transfer data indicating data transferred to the second network;
• and
• setting to the packet the control parameter which is associated with transfer data of a same type as data identified by the data type information, and
• outputting the packet to which the control parameter is set to the second network.