CPC H04L 41/0654 (2013.01) [H04L 41/046 (2013.01); H04L 41/0631 (2013.01); H04L 41/22 (2013.01); H04L 45/74 (2013.01); H04L 69/22 (2013.01)] | 13 Claims |
1. A method for communicating between apparatuses, the method comprising:
in a first apparatus, generating a second packet according to a second protocol, the second packet including a first packet according to a first protocol;
in the first apparatus, sending the generated second packet to a second apparatus;
in the second apparatus, receiving the second packet;
in the second apparatus, determining whether a response by the first protocol to the first packet included in the second packet is possible; and
in the second apparatus, in a case where it is determined that a response by the first protocol to the first packet is impossible, including status information corresponding to a cause for the impossibility of the response in a response packet corresponding to the second packet and sending the response packet to the first apparatus,
wherein the second apparatus has a table in which a code used in the second protocol and a cause of impossibility of a response by the first protocol which is associated with the code are defined, and the code used in the second protocol is set based on the table, the cause of impossibility of the response in the table includes that at least one of the first and second protocol is disabled, and
the sending includes including the code as the status information in the response packet corresponding to the second packet and sending the response packet to the first apparatus.
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