JP5592301B2 - クライアント装置、通信システム、生存確認方法、及びプログラム - Google Patents

クライアント装置、通信システム、生存確認方法、及びプログラム Download PDF

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JP5592301B2
JP5592301B2 JP2011080178A JP2011080178A JP5592301B2 JP 5592301 B2 JP5592301 B2 JP 5592301B2 JP 2011080178 A JP2011080178 A JP 2011080178A JP 2011080178 A JP2011080178 A JP 2011080178A JP 5592301 B2 JP5592301 B2 JP 5592301B2
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survival confirmation
confirmation request
request response
packet
server device
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JP2012216964A5 (enExample
JP2012216964A (ja
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敏浩 元田
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NTT DOCOMO BUSINESS, Inc.
NTT Communications Corp
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NTT DOCOMO BUSINESS, Inc.
NTT Communications Corp
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JP2011080178A 2011-03-31 2011-03-31 クライアント装置、通信システム、生存確認方法、及びプログラム Active JP5592301B2 (ja)

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JP2014156741A Division JP5813835B2 (ja) 2014-07-31 2014-07-31 クライアント装置、及び通信システム

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JP2012216964A5 JP2012216964A5 (enExample) 2013-05-09
JP5592301B2 true JP5592301B2 (ja) 2014-09-17

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US9906497B2 (en) 2014-10-06 2018-02-27 Cryptzone North America, Inc. Multi-tunneling virtual network adapter
US10412048B2 (en) 2016-02-08 2019-09-10 Cryptzone North America, Inc. Protecting network devices by a firewall
US9628444B1 (en) * 2016-02-08 2017-04-18 Cryptzone North America, Inc. Protecting network devices by a firewall
US9560015B1 (en) 2016-04-12 2017-01-31 Cryptzone North America, Inc. Systems and methods for protecting network devices by a firewall

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US4807224A (en) * 1987-08-21 1989-02-21 Naron Steven E Multicast data distribution system and method
JPH0595375A (ja) * 1991-10-03 1993-04-16 Mitsubishi Heavy Ind Ltd パケツトデータ通信方法
JP4102060B2 (ja) * 2001-12-06 2008-06-18 三菱電機株式会社 データ受信装置
JP2008066915A (ja) * 2006-09-06 2008-03-21 Matsushita Electric Ind Co Ltd 無線端末及び無線基地局
JP2008252429A (ja) * 2007-03-30 2008-10-16 Nec Corp 通信システム、監視システムのセンサ端末監視装置、サーバー装置、通信方法、監視システムのセンサ端末監視方法、通信プログラム及び監視システムのセンサ端末監視プログラム
JP4557028B2 (ja) * 2008-03-19 2010-10-06 ソニー株式会社 情報処理装置、情報処理方法、クライアント機器、情報処理システム
JP5357619B2 (ja) * 2009-04-28 2013-12-04 セコム株式会社 通信障害検出システム

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