{"id":2496,"date":"2020-02-17T09:44:27","date_gmt":"2020-02-17T00:44:27","guid":{"rendered":"https:\/\/www.bold.ne.jp\/engineer-club\/?post_type=study_report&#038;p=2496"},"modified":"2020-02-17T09:44:27","modified_gmt":"2020-02-17T00:44:27","slug":"18second-half-network-basic-vol-1","status":"publish","type":"study_report","link":"https:\/\/www.bold.ne.jp\/engineer-club\/study_report\/18second-half-network-basic-vol-1","title":{"rendered":"18\u4e0b\u671f \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u57fa\u790e\u52c9\u5f37\u4f1a\u30ec\u30dd\u30fc\u30c8 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decoding=\"async\" loading=\"lazy\" width=\"550\" height=\"321\" class=\"size-medium wp-image-2500 aligncenter\" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/003-1-550x321.png\" \/><\/p>\n<p>\u3061\u306a\u307f\u306b\u3001\u8b1b\u7fa9\u30ce\u30fc\u30c8\u306f\u3053\u3093\u306a\u611f\u3058\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"328\" height=\"348\" class=\"size-full wp-image-2501 aligncenter\" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/004.png\" \/><\/p>\n<p>\u3067\u306f\u3001\u8b1b\u7fa9\u306e\u69d8\u5b50\u3092\u8997\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br 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src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/005.png\" \/><\/p>\n<h3><strong>\uff11-\uff12\uff0e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b\u3088\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306f\uff1f<\/strong><\/h3>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30a4\u30e1\u30fc\u30b8\u304c\u3067\u304d\u305f\u3068\u3053\u308d\u3067\u3001\u3067\u306f\u3001\u300c\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b\u3088\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306f\uff1f\u300d\u3068\u8b1b\u5e2b\u304b\u3089\u3055\u3089\u306b\u8cea\u554f\u304c\u7d9a\u304d\u307e\u3059\u3002<br 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\/>\n\u3055\u3066\u3001\u6b63\u89e3\u306f\u3068\u8a00\u3046\u3068\u3001\u305d\u3046\u3001\u305d\u306e\u901a\u308a\uff01\uff01\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b\u3088\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306f\u300c\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u9593\u3067\u30c7\u30fc\u30bf\u306e\u4ea4\u63db\uff08\u30ea\u30bd\u30fc\u30b9\u306e\u5171\u6709\uff09\u3092\u3059\u308b\u305f\u3081\u306e\u74b0\u5883\u306e\u3053\u3068\u300d\u3092\u8a00\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u305d\u308c\u3053\u305d\u304c\u3053\u308c\u304b\u3089\u7686\u3055\u3093\u304c\u52c9\u5f37\u3057\u3066\u3044\u304f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u3067\u3059\uff01<br \/>\n\u306a\u308b\u307b\u3069\u3001\u5206\u304b\u308a\u3084\u3059\u3044\uff01\uff01<\/p>\n<h3><strong>\uff11-\uff13\uff0e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7a2e\u985e<\/strong><\/h3>\n<p>\u3053\u308c\u304b\u3089\u5177\u4f53\u7684\u306a\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b\u3088\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3064\u3044\u3066\u52c9\u5f37\u3057\u3066\u3044\u304f\u308f\u3051\u3067\u3059\u304c\u3001\u307e\u305a\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7a2e\u985e\u304b\u3089\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"734\" height=\"359\" class=\"aligncenter wp-image-2503 size-full\" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/006.png\" \/><\/p>\n<p>\u2460<span>LAN<\/span>\uff08\u30ed\u30fc\u30ab\u30eb\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09<br \/>\n\u3000\u5bb6\u5ead\u5185\u3084\u30aa\u30d5\u30a3\u30b9\u30d3\u30eb\u5185\u306a\u3069\u3001\u72ed\u3044\u7bc4\u56f2\uff08\u30ed\u30fc\u30ab\u30eb\uff09\u306e\u6577\u5730\u5185\u3067\u69cb\u7bc9\u3055\u308c\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u3053\u3068<br \/>\n\u3000\u6a5f\u5668\u3068\u6a5f\u5668\u3068\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b1\u30fc\u30d6\u30eb\u306a\u3069\u3067\u63a5\u7d9a\u3057\u3066\u69cb\u7bc9\u3055\u308c\u308b<\/p>\n<p>\u2461<span>WAN<\/span>\uff08\u30ef\u30a4\u30c9\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09<br \/>\n\u3000\u96fb\u8a71\u56de\u7dda\u3084\u5c02\u7528\u7dda\u3092\u4f7f\u3044\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306a\u3069\u3092\u901a\u3057\u3066\u3001\u672c\u793e\uff0d\u652f\u793e\u9593\u306a\u3069\u5730\u7406\u7684\u306b<br \/>\n\u3000\u96e2\u308c\u305f\u5730\u70b9\u306b\u3042\u308b\u6a5f\u5668\u3092\u63a5\u7d9a\u3057\u3066\u3001\u30c7\u30fc\u30bf\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u3053\u3068<\/p>\n<p>\u2462<span>Intranet<\/span>\uff08\u30a4\u30f3\u30c8\u30e9\u30cd\u30c3\u30c8\uff09<br \/>\n\u3000\u4f01\u696d\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u3088\u3046\u306b\u7279\u5b9a\u306e\u7ba1\u7406\u4e3b\u4f53\u306b\u3088\u3063\u3066\u7ba1\u7406\u3055\u308c\u3066\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001<br \/>\n\u3000\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u5bfe\u3057\u3066\u5185\u90e8\uff08<span>Intra<\/span>\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u3044\u3046\u610f\u5473<\/p>\n<p>\u2463<span>Internet<\/span>\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff09<br \/>\n\u3000\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u76f8\u4e92\u63a5\u7d9a\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u3053\u3068\u3092\u300c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u300d\u3068\u3044\u3046<br \/>\n\u3000\u69d8\u3005\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u76f8\u4e92\u63a5\u7d9a\u3057\u3001\u8ab0\u3067\u3082\u5229\u7528\u3067\u304d\u308b\u4e16\u754c\u898f\u6a21\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/p>\n<p>\u3069\u308c\u3082\u805e\u3044\u305f\u3053\u3068\u306e\u3042\u308b\u3082\u306e\u3070\u304b\u308a\u3067\u3059\u304c\u3001\u307f\u306a\u3055\u3093\u3061\u3083\u3093\u3068\u9055\u3044\u3092\u8aac\u660e\u3067\u304d\u307e\u3057\u305f\u304b\uff1f<br \/>\n\u53d7\u8b1b\u751f\u306e\u307f\u306a\u3055\u3093\u3001\u3053\u306e\u8fba\u308a\u307e\u3067\u306f\u4f59\u88d5\u306e\u8868\u60c5\u3067\u3001\u8cea\u554f\u3055\u308c\u3066\u3082\u3057\u3063\u304b\u308a\u3068\u7b54\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u306d\u3001\u512a\u79c0\u512a\u79c0\uff01<br \/>\n\u3067\u3082\u8074\u3044\u3066\u3044\u308b\u3070\u304b\u308a\u3067\u306f\u306a\u304f\u3001\u3057\u3063\u304b\u308a\u3068\u8b1b\u7fa9\u30ce\u30fc\u30c8\u306b\u8a18\u5165\u3057\u3066\u5fa9\u7fd2\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<h3><strong>\uff11-\uff14\uff0e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u69cb\u6210\u8981\u7d20<\/strong><\/h3>\n<p>\u7d9a\u3044\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u69cb\u6210\u8981\u7d20\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"735\" height=\"342\" class=\"aligncenter wp-image-2504 \" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/007.png\" \/><\/p>\n<p>\u2460\u30db\u30b9\u30c8<br \/>\n\u3000\u30db\u30b9\u30c8\u306f\u3001\u30c7\u30fc\u30bf\u901a\u4fe1\u306e\u59cb\u70b9\u3068\u7d42\u70b9\u3068\u306a\u308b<br \/>\n\u3000\u30db\u30b9\u30c8\u540c\u58eb\u306f\u3001\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u306e\u307f\u3001\u76f4\u63a5\u30c7\u30fc\u30bf\u901a\u4fe1\u3059\u308b\u4e8b\u304c\u51fa\u6765\u308b<\/p>\n<p>\u2461\u30eb\u30fc\u30bf\u30fc<br \/>\n\u3000\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u306e\u7d4c\u8def\u5236\u5fa1\uff08\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff09\u3092\u884c\u3044\u3001\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u884c\u3046\u6a5f\u5668\u306e\u3053\u3068<\/p>\n<p>\u2462\u30b9\u30a4\u30c3\u30c1<br \/>\n\u3000LAN\u74b0\u5883\u5185\u3067\u306e\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b0\u30eb\u30fc\u30d7\u9593\u3067\u901a\u4fe1\u3059\u308b\u6a5f\u5668<br \/>\n\u3000LAN\u74b0\u5883\u5185\u3067\u3082\u3001\u9055\u3046\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b0\u30eb\u30fc\u30d7\u9593\u306e\u901a\u4fe1\u3092\u884c\u3046\u6a5f\u5668\u306b<span>L3<\/span>\uff08\u30ec\u30a4\u30e4\u30fc<span>3<\/span>\uff09\u30b9\u30a4\u30c3\u30c1\u304c\u3042\u308b<\/p>\n<p>\u2463\u305d\u306e\u4ed6\uff08<span>HUB<\/span>\uff08\u30ea\u30d4\u30fc\u30bf<span>HUB<\/span>\uff09\u3068\u30eb\u30fc\u30bf\u30fc\uff08\u30b9\u30a4\u30c3\u30c1\uff09\u3068\u306e\u9055\u3044\uff09<br \/>\n\u3000\u30ea\u30d4\u30fc\u30bf<span>HUB<\/span>\u3068\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306a\u3069\u306b\u304a\u3044\u3066\u5404\u30db\u30b9\u30c8\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u8907\u6570\u306e\u30b1\u30fc\u30d6\u30eb\u3092\u96c6\u7d04\u3059\u308b\u305f\u3081\u306e\u88c5\u7f6e\u306e\u3053\u3068<\/p>\n<p>\u3053\u3053\u3067\u4e00\u6c17\u306b\u96e3\u6613\u5ea6\u304c\u4e0a\u304c\u3063\u305f\u611f\u3058\u3067\u3057\u3087\u3046\u304b\u3002\u53d7\u8b1b\u751f\u306e\u8868\u60c5\u3082\u3055\u3089\u306b\u7dca\u5f35\u611f\u304c\u5897\u3057\u305f\u69d8\u5b50\u3067\u3059\u3002<br \/>\n\u8b1b\u5e2b\u306f\u3001\u8aac\u660e\u3057\u305f\u3053\u3068\u3092\u3059\u3050\u306b\u53d7\u8b1b\u751f\u306b\u8cea\u554f\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u7dca\u5f35\u611f\u3092\u9ad8\u3081\u308b\u3068\u5171\u306b\u899a\u3048\u3088\u3046\u3068\u3044\u3046\u610f\u6b32\u3082\u9ad8\u3081\u3066\u3044\u304d\u307e\u3059\u3002\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u53d7\u8b1b\u751f\u3082\u8b1b\u7fa9\u306b\u96c6\u4e2d\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u308f\u3051\u3067\u3059\u306d\u3002\u7d20\u6674\u3089\u3057\u3044\uff01<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"550\" height=\"321\" class=\"size-medium wp-image-2505 aligncenter\" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/008-550x321.png\" \/><\/p>\n<h3><strong>\uff11-\uff15\uff0e\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u306f\uff1f<\/strong><\/h3>\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u306f\u3001\u300c\u5bfe\u8c61\u3068\u306a\u308b\u4e8b\u9805\u3092\u78ba\u5b9f\u306b\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u624b\u9806\u3092\u5b9a\u3081\u305f\u898f\u5b9a\u3001\u53d6\u6c7a\u3081\u306e\u3053\u3068\u300d\u3067\u3059\u3002<br \/>\n\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u306b\u3082\u69d8\u3005\u306a\u624b\u9806\u3001\u53d6\u308a\u6c7a\u3081\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3057\u3066\u305d\u306e\u624b\u9806\u3092\u7406\u89e3\u3057\u3066\u78ba\u5b9f\u306b\u5b9f\u884c\u3057\u306a\u3051\u308c\u3070\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u540c\u58eb\u3067\u901a\u4fe1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u306f\u3001\u305d\u3093\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3064\u3044\u3066\u306e\u89e3\u8aac\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"736\" height=\"325\" class=\"aligncenter wp-image-2506 size-full\" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/009.png\" \/><\/p>\n<p>\u2460\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u306f<br \/>\n\u3000\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u540c\u58eb\u304c\u901a\u4fe1\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u3044\u308d\u3044\u308d\u306a\u624b\u9806\u304c\u3042\u308a\u3001\u305d\u306e\u624b\u9806\u3092\u3059\u3079\u3066\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u7406\u89e3\u3057\u3001\u30eb\u30fc\u30eb\u3092\u5b88\u3063\u3066\u52d5\u4f5c\u3059\u308b\u3053\u3068\u304c\u5fc5\u8981<br \/>\n\u3000\u3053\u306e\u624b\u9806\u3092\u30eb\u30fc\u30eb\u3068\u3057\u3066\u8a2d\u5b9a\u3057\u305f\u3082\u306e\u304c\u201c\u30d7\u30ed\u30c8\u30b3\u30eb\u201d\uff08\u7d04\u675f\u4e8b\uff09<\/p>\n<p>\u2461\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u6a19\u6e96\u5316<br \/>\n\u3000\u7570\u306a\u308b\u30e1\u30fc\u30ab\u540c\u58eb\u3067\u3082\u901a\u4fe1\u304c\u51fa\u6765\u308b\u3088\u3046\u306b\u56fd\u969b\u7684\u306b\u30eb\u30fc\u30eb\u3092\u6a19\u6e96\u5316\u3059\u308b\u305f\u3081\u306b\u8003\u3048\u51fa\u3055\u308c\u305f\u306e\u304c\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30e2\u30c7\u30eb\u300d<\/p>\n<p>\u2462\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u968e\u5c64\u5316<br \/>\n\u3000\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u5f79\u5272\u3054\u3068\u306b\u968e\u5c64\u3068\u3057\u3066\u5206\u3051\u3089\u308c\u3066\u304a\u308a\u3001\u968e\u5c64\u3054\u3068\u306b\u305d\u308c\u305e\u308c\u306e\u4ed5\u4e8b\u3092\u3053\u306a\u3059\u3053\u3068\u3067\u4e00\u9023\u306e\u901a\u4fe1\u304c\u884c\u308f\u308c\u308b<br \/>\n\u3000\u968e\u5c64\u3054\u3068\u306b\u4f5c\u696d\u3092\u72ec\u7acb\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u4ed6\u306e\u968e\u5c64\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u306a\u304f\u201d\u65b0\u3057\u3044\u6a5f\u80fd\u3092\u8ffd\u52a0\u201d\u3059\u308b\u3053\u3068\u3084\u5404\u968e\u5c64\u306e\u201d\u4f5c\u696d\u3092\u5358\u7d14\u5316\u201d\u3055\u305b\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308b<\/p>\n<p>\u3055\u3042\u3001\u4eca\u65e5\u306e\u8b1b\u7fa9\u3082\u4e2d\u76e4\u6226\u3067\u3059\u3002\u8b1b\u5e2b\u306e\u8aac\u660e\u306b\u3082\u529b\u304c\u5165\u308a\u3001\u71b1\u304f\u8a9e\u308a\u307e\u3059\uff01<br \/>\n\u9014\u4e2d\u3061\u3087\u3063\u3068\u65e9\u53e3\u306b\u306a\u308b\u5834\u9762\u3082\u3042\u308a\u307e\u3057\u305f\u304c\u3001\u305d\u308c\u3067\u3082\u53d7\u8b1b\u751f\u306e\u69d8\u5b50\u306b\u306f\u3061\u3083\u3093\u3068\u76ee\u3092\u914d\u3063\u3066\u3044\u307e\u3059\u3002\u30ce\u30fc\u30c8\u3078\u306e\u8a18\u5165\u304c\u9045\u308c\u3066\u3044\u308b\u53d7\u8b1b\u751f\u3092\u3061\u3083\u3093\u3068\u628a\u63e1\u3057\u3066\u3044\u3066\u3001\u8ffd\u3044\u3064\u304f\u307e\u3067\u3061\u3083\u3093\u3068\u5f85\u3061\u307e\u3059\u3002\u3082\u3061\u308d\u3093\u7e70\u308a\u8fd4\u3057\u8aac\u660e\u3057\u3066\u66f8\u304d\u6d29\u3089\u3055\u306a\u3044\u3088\u3046\u306b\u914d\u616e\u3082\u30d0\u30c3\u30c1\u30ea\uff01<br \/>\n\u3055\u3059\u304c\u3001\u767e\u6226\u932c\u78e8\u306e\u8b1b\u5e2b\u3067\u3059\u306d\u3001\u3055\u3059\u304c\u3067\u3059\u3002<\/p>\n<h3><strong>\uff11-\uff16\uff0e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30e2\u30c7\u30eb<\/strong><\/h3>\n<p>\u3053\u3053\u3067\u306f\u3001\u300c<span>OSI<\/span>\u53c2\u7167\u30e2\u30c7\u30eb\u300d\u306e\u89e3\u8aac\u3067\u3059\u3002\u57fa\u672c\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u3067\u3082\u304a\u99b4\u67d3\u307f\u3067\u3059\u306d\u3002<br \/>\n7\u3064\u306e\u30ec\u30a4\u30e4\u30fc\u305d\u308c\u305e\u308c\u306e\u5f79\u5272\u3092\u5177\u4f53\u7684\u306a\u4f8b\u306b\u6cbf\u3063\u3066\u89e3\u8aac\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u69d8\u5b50\u306f\u3053\u3053\u3067\u306f\u5272\u611b\u3057\u307e\u3059\u3002\u8208\u5473\u306e\u3042\u308b\u65b9\u306f\u662f\u975e\u3053\u306e\u52c9\u5f37\u4f1a\u306b\u53c2\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u306d\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"737\" height=\"324\" class=\"aligncenter wp-image-2507 size-full\" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/010.png\" \/><\/p>\n<p>\u2460\u30ec\u30a4\u30e4\uff11\uff1a\u7269\u7406\u5c64<br \/>\n\u3000\u30e1\u30c7\u30a3\u30a2\u30bf\u30a4\u30d7\u3001\u30b3\u30cd\u30af\u30bf\u30bf\u30a4\u30d7\u3001\u30b7\u30b0\u30ca\u30ea\u30f3\u30b0\u30bf\u30a4\u30d7\u3092\u5b9a\u7fa9\u3057\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u6750\u8cea\u3084\u30b3\u30cd\u30af\u30bf\u306e\u5f62\u72b6\u3001\u30d3\u30c3\u30c8\u5217\u3068\u96fb\u6c17\u4fe1\u53f7\u306e\u76f8\u4e92\u5909\u63db\u3068\u3044\u3063\u305f\u65b9\u5f0f\u3092\u5b9a\u3081\u308b<\/p>\n<p>\u2461\u30ec\u30a4\u30e4<span>2<\/span>\uff1a\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64<br \/>\n\u3000\u7269\u7406\u5c64\u3067\u306e<span>0,1<\/span>\u306e\u30d3\u30c3\u30c8\u5217\u3092\u30d5\u30ec\u30fc\u30e0\u3068\u3044\u3046\u30c7\u30fc\u30bf\u306e\u56fa\u307e\u308a\u306b\u5206\u5272\u3057\u3066\u4e0a\u4f4d\u5c64\u306b\u4f1d\u3048\u308b\u50cd\u304d\u3092\u3057\u3001\u4e3b\u306b\u9001\u4fe1\u5143\u53ca\u3073\u5b9b\u5148\u306e\u7269\u7406\u30a2\u30c9\u30ec\u30b9\uff08<span>MAC<\/span>\u30a2\u30c9\u30ec\u30b9\uff09\u3092\u4f7f\u3063\u3066\u9001\u4fe1\u3059\u308b<\/p>\n<p>\u2462\u30ec\u30a4\u30e4\uff13\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64<br \/>\n\u3000\u9001\u4fe1\u5143\u304b\u3089\u5b9b\u5148\u3078\u5230\u9054\u3059\u308b\u305f\u3081\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7d4c\u8def\u3092\u5b9a\u7fa9\u3059\u308b\uff08\u203b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u3067\u4f7f\u7528\u3055\u308c\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u6709\u540d\u306a\u306e\u304c\u3010<span>IP<\/span>\u3011\u3068\u3088\u3070\u308c\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\uff09<\/p>\n<p>\u2463\u30ec\u30a4\u30e4<span>4<\/span>\uff1a\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64<br \/>\n\u3000\u901a\u4fe1\u3092\u3059\u308b\u76f8\u624b\u306b\u30c7\u30fc\u30bf\u3092\u78ba\u5b9f\u306b\u9001\u308b\u5f79\u5272\u3092\u62c5\u3046<\/p>\n<p>\u2464\u30ec\u30a4\u30e4\uff15\uff1a\u30bb\u30c3\u30b7\u30e7\u30f3\u5c64<br \/>\n\u3000\u305d\u306e\u540d\u306e\u901a\u308a\u901a\u4fe1\u306e\u958b\u59cb\u304b\u3089\u7d42\u4e86\u307e\u3067\u306e\u624b\u9806\u3092\u6c7a\u3081\u308b<br \/>\n\u3000\u9001\u4fe1\u5143\u304c\u5b9f\u969b\u306b\u30c7\u30fc\u30bf\u3092\u9001\u308b\u524d\u306b\u300c\u3053\u308c\u304b\u3089\u9001\u308a\u307e\u3059\u300d\u3068\u76f8\u624b\u306b\u4f1d\u3048\u308b\u3053\u3068\u3067\u901a\u4fe1\u3092\u59cb\u3081\u308b\u3053\u3068\u3092\u77e5\u3089\u305b\u308b<\/p>\n<p>\u2465\u30ec\u30a4\u30e4\uff16\uff1a\u30d7\u30ec\u30bc\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u5c64<br \/>\n\u3000\u4e0a\u4f4d\u5c64\u3067\u3042\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306b\u30c7\u30fc\u30bf\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u60c5\u5831\u306e\u7b26\u53f7\u5316\u3084\u5909\u63db\u3092\u884c\u3046<br \/>\n\u3000ASCII\u30b3\u30fc\u30c9\u3084<span>EBCDIC<\/span>\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3057\u3066\u6587\u5b57\u3068\u3057\u3066\u8aad\u307f\u53d6\u308c\u308b\u3088\u3046\u306b\u3057\u305f\u308a\u3001\u753b\u50cf\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067<span>JPEG<\/span>\u3084<span>PICT<\/span>\u3001\u52d5\u753b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067<span>MPEG<\/span>\u306a\u3069\u3092\u8868\u73fe\u3059\u308b\u306e\u304c\u3053\u306e\u5c64\u306e\u5f79\u5272<\/p>\n<p>\u2466\u30ec\u30a4\u30e4\uff17\uff1a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64<br \/>\n\u3000\u5404\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff08\u30e1\u30fc\u30eb\u3084<span>WWW<\/span>\u30d6\u30e9\u30a6\u30b6\u306a\u3069\uff09\u306b\u5408\u308f\u305b\u3066\u901a\u4fe1\u3092\u884c\u3048\u308b\u3088\u3046\u306b\u5b9a\u3081\u3066\u3044\u308b<br \/>\n\u3000\u7c21\u5358\u306b\u8a00\u3046\u3068<span>PC<\/span>\u3067\u52d5\u4f5c\u3057\u3066\u3044\u308b\u30bd\u30d5\u30c8\u3092\u601d\u3044\u6d6e\u304b\u3079\u308c\u3070\u308f\u304b\u308a\u3084\u3059\u3044\u3067\u3057\u3087\u3046\u304b<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"550\" height=\"322\" class=\"size-medium wp-image-2508 aligncenter\" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/011-550x322.png\" \/><\/p>\n<p>\u3068\u3066\u3082\u5927\u4e8b\u306a\u3068\u3053\u308d\u3067\u3059\u306e\u3067\u3001\u30db\u30ef\u30a4\u30c8\u30dc\u30fc\u30c9\u3082\u4f7f\u3063\u3066\u4f55\u5ea6\u3082\u884c\u304d\u3064\u623b\u308a\u3064\u3057\u306a\u304c\u3089\u4e01\u5be7\u306b\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<br \/>\n\u5177\u4f53\u7684\u306e\u4f8b\u3082\u4ea4\u3048\u3066\u306a\u306e\u3067\u3001\u53d7\u8b1b\u751f\u306e\u7406\u89e3\u3082\u6df1\u307e\u3063\u305f\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<h3><strong>\uff11-\uff17\uff0e\u4ee3\u8868\u7684\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\uff08<span>TCP<\/span>\u3001<span>UDP<\/span>\u3001<span>IP<\/span>\uff09<\/strong><\/h3>\n<p>\u3044\u3088\u3044\u3088\u6700\u5f8c\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3001\u4ee3\u8868\u7684\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3064\u3044\u3066\u89e3\u8aac\u3067\u3059\u3002<br \/>\n\u73fe\u5728\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084\u30a4\u30f3\u30c8\u30e9\u30cd\u30c3\u30c8\u3067\u6a19\u6e96\u7684\u306b\u4f7f\u308f\u308c\u308b<span>TCP\/IP<\/span>\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u4eca\u65e5\u306e<span>LAN<\/span>\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u652f\u3048\u3066\u3044\u308b\u91cd\u8981\u306a\u6280\u8853\u306e\u3072\u3068\u3064\u3067\u3059\u3002<br \/>\n\u3053\u3053\u3067\u8aac\u660e\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u8ab0\u3082\u304c\u805e\u3044\u305f\u3053\u3068\u306e\u3042\u308b\u3082\u306e\u3070\u304b\u308a\u3067\u3059\u304c\u3001\u610f\u5916\u3068\u66d6\u6627\u306b\u899a\u3048\u3066\u3044\u305f\u308a\u3057\u307e\u3059\u306e\u3067\u3001\u3053\u3053\u3067\u3082\u5177\u4f53\u4f8b\u3092\u4ea4\u3048\u3066\u306e\u89e3\u8aac\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"735\" height=\"317\" class=\"aligncenter wp-image-2509 size-full\" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/012.png\" \/><\/p>\n<p>\u2460<span>IP<br \/>\n<\/span>\u3000\u30c7\u30fc\u30bf\u306e\u5c0f\u3055\u306a\u584a\uff08\uff1d\u30d1\u30b1\u30c3\u30c8\uff09\u3092\u57fa\u672c\u5358\u4f4d\u3068\u3057\u3066\u3001\u305d\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u30db\u30b9\u30c8\u9593\u3067\u4ea4\u63db\u3059\u308b\u30d1\u30b1\u30c3\u30c8\u4ea4\u63db\u30d7\u30ed\u30c8\u30b3\u30eb<\/p>\n<p>\u2461<span>TCP<br \/>\n<\/span>\u3000IP\u306b\u3088\u308b\u30db\u30b9\u30c8\u9593\u306e\u4f1d\u9001\u8def\u3092\u4f7f\u3063\u3066\u3001\u4fe1\u983c\u6027\u306e\u3042\u308b\u901a\u4fe1\u8def\uff08\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\uff09\u3092\u5b9f\u73fe\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3000<br \/>\n\u3000TCP\u306e\u901a\u4fe1\u306f\u3001\u30d1\u30b1\u30c3\u30c8\u3092<span>1<\/span>\u3064\u53d7\u3051\u53d6\u308b\u3054\u3068\u306b\u300c\u53d7\u3051\u53d6\u3063\u305f\u300d\u3068\u3044\u3046\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u5074\u306b\u9001\u308a\u8fd4\u3059\u306e\u304c\u539f\u5247\u3068\u306a\u3063\u3066\u3044\u308b<\/p>\n<p>\u2462<span>UDP<br \/>\n<\/span>\u3000IP \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u30c7\u30fc\u30bf\u3092\u76f4\u63a5\u7684\u306a\u65b9\u6cd5\u3067\u9001\u53d7\u4fe1\u3059\u308b<br \/>\n\u3000TCP\u3068\u306f\u9055\u3044\u3001\u30a8\u30e9\u30fc\u30ea\u30ab\u30d0\u30ea\u30b5\u30fc\u30d3\u30b9\u304c\u307b\u3068\u3093\u3069\u7528\u610f\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u30c7\u30fc\u30bf\u901a\u4fe1\u3068\u3057\u3066\u306e\u4fe1\u983c\u6027\u306f\u4f4e\u3044\u304c\u305d\u306e\u4ee3\u308f\u308a\u306b\u901a\u4fe1\u901f\u5ea6\u304c\u901f\u3044<br \/>\n\u3000\u4e3b\u306b<span>IP<\/span>\u96fb\u8a71\u3084\u52d5\u753b\u306e\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u914d\u4fe1\u3068\u3044\u3063\u305f\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306a\u901a\u4fe1\u306b\u4f7f\u308f\u308c\u308b<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" width=\"550\" height=\"321\" class=\"size-medium wp-image-2510 aligncenter\" alt=\"\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2020\/02\/013-550x321.png\" \/><\/p>\n<p>\u3053\u308c\u3067\u3001\u4eca\u56de\u306e\u8b1b\u7fa9\u306f\u7d42\u4e86\u3067\u3059\u3002\u95a2\u9023\u77e5\u8b58\u3082\u3061\u3087\u3053\u3061\u3087\u3053\u7e54\u308a\u4ea4\u305c\u3066\u306e\u8b1b\u7fa9\u3067\u3057\u305f\u304c\u3001\u53d7\u8b1b\u751f\u306e\u307f\u306a\u3055\u3093\u3044\u304b\u304c\u3060\u3063\u305f\u3067\u3057\u3087\u3046\u304b\u3001\u6700\u5f8c\u307e\u3067\u96c6\u4e2d\u3057\u3066\u8074\u3051\u307e\u3057\u305f\u304b\uff1f<br \/>\n\u3068\u3066\u3082\u76db\u308a\u3060\u304f\u3055\u3093\u306a\u5185\u5bb9\u306e\u8b1b\u7fa9\u3067\u3057\u305f\u304c\u3001\u305d\u308c\u3067\u3082\u307e\u3060\u57fa\u790e\u306e\u57fa\u790e\u3067\u3059\u3002\u3057\u3063\u304b\u308a\u3068\u5fa9\u7fd2\u3057\u3066\u6b21\u56de\u306b\u5099\u3048\u307e\u3057\u3087\u3046\u3002<br \/>\n\u305d\u306e\u524d\u306b\u5bbf\u984c\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u3053\u3061\u3089\u3082\u671f\u9650\u307e\u3067\u306b\u63d0\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u306d\u3002<br 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