An example system includes: a search communication apparatus searching for another communication apparatus; and search subject communication apparatuses searched for by the search communication apparatus. The search communication apparatus includes a search request transmission section transmitting a search request signal. The search subject communication apparatuses each includes: a search request reception section receiving the search request signal transmitted from the search communication apparatus; a search response transmission section transmitting a search response signal as response to the search request signal received by the search request reception section, to the search communication apparatus; and a search response monitoring section monitoring the search response signal transmitted from another search subject communication apparatus to the search communication apparatus. The search response transmission section transmits, as proxy response signal, to the search communication apparatus, the search response signal transmitted from the other search subject communication apparatus and monitored by the search response monitoring section.