| 摘要 |
A relaying method includes a request packet generation operation generates a request packet for requesting a connectivity check for all communication routes between said receiver and said transmitter, a request packet transmission operation transmits a generated request packet to a relay, a route information addition operation adds information representing the router itself to the received request packet as route information, a request packet forwarding operation forwards the request packet to which said route information has been added to each of all the communication routes between said receiver and said relay, a response packet generation operation has been transcribed, a response packet transmission operation in which said receiver transmits the generated response packet to said transmitter via said relay, a response packet forwarding operation forwards the received response packet to said transmitter, and a route information output operation outputs the route information included in the received response packet.
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