>>486
>何ならファイヤーウォールを切って、すべてのパケットを調べるっていう手も
>あるけど…
とりあえず、DSLReportsのTOOLでポートスキャンしてみた。
http://www.dslreports.com/scan
結果
Conclusion: Alert - We did get at least some information from scanning your IP. Please review the information below,
especially any OPEN TCP PORTS listed, to ensure that the state of your public setup matches your intentions.
TCP ALLFILTEREDNo response packet was received.
UDP defaultCLOSEDWe received a response packet that no service is available.
UDP 67SINKThe UDP port is either opend or filtered

でしたm(_ _)m。