{"id":2129,"date":"2021-01-02T11:32:25","date_gmt":"2021-01-02T02:32:25","guid":{"rendered":"http:\/\/advanceadvance.net\/?p=2129"},"modified":"2021-01-02T11:32:28","modified_gmt":"2021-01-02T02:32:28","slug":"%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af%ef%bc%88%e3%81%9d%e3%81%ae%ef%bc%96%ef%bc%89%e3%83%88%e3%83%a9%e3%83%b3%e3%82%b9%e3%83%9d%e3%83%bc%e3%83%88%e5%b1%a4%e3%81%ae%e3%83%97%e3%83%ad","status":"publish","type":"post","link":"https:\/\/advanceadvance.net\/?p=2129","title":{"rendered":"\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u305d\u306e\uff16\uff09\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb"},"content":{"rendered":"\n<p>\u73fe\u5728\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u30c7\u30d5\u30a1\u30af\u30c8\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9\uff08\u4e8b\u5b9f\u4e0a\u306e\u6a19\u6e96\uff09\u306a\u306e\u306f\u3001<strong>TCP\/IP<\/strong>\u3068\u3044\u3046\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\uff08\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u6a5f\u80fd\u3092\u4f53\u7cfb\u5316\u3057\u305f\u3082\u306e\uff09\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>TCP\/IP\u3067\u306f\u6b21\u306e\uff14\u968e\u5c64\u304b\u3089\u69cb\u6210\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"701\" height=\"295\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30c7\u30d5\u30a1\u30af\u30c8\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9.gif\" alt=\"\" class=\"wp-image-2131\"\/><\/figure>\n\n\n\n<p>\u524d\u56de\u306eIP\u30a2\u30c9\u30ec\u30b9\u306b\u95a2\u3059\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u4e0a\u56f3\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u3068\u3082\u3044\u3046\uff09\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u3001\u305d\u306e\u4e00\u6bb5\u968e\u4e0a\u306e\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3064\u3044\u3066\u89b3\u3066\u307f\u3088\u3046\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30dd\u30fc\u30c8\u756a\u53f7<\/h4>\n\n\n\n<p>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u304c\u5b9f\u73fe\u3059\u308b\u30a8\u30f3\u30c9\u30ce\u30fc\u30c9\u9593\u306e\u4f1d\u9001\u8def\u4e0a\u3067\u3001\u30c7\u30fc\u30bf\u306e\u9806\u5e8f\u5236\u5fa1\u3084\u4f1d\u9001\u8aa4\u308a\u306e\u8a02\u6b63\u3001\u518d\u9001\u306e\u8981\u6c42\u3068\u3044\u3063\u305f\u4e00\u5b9a\u306e\u54c1\u8cea\u3092\u4fdd\u3064\u5236\u5fa1\u3092\u884c\u3046\u3002<\/p>\n\n\n\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u306f\u8907\u6570\u306e\u30db\u30b9\u30c8\u304c\u63a5\u7d9a\u3055\u308c\u3001\u5404\u30db\u30b9\u30c8\u5185\u3067\u306f\u8907\u6570\u306e\u901a\u4fe1\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u5b58\u5728\u3059\u308b\u3002<\/p>\n\n\n\n<p>IP\u30a2\u30c9\u30ec\u30b9\u306f<strong>\u30db\u30b9\u30c8\u306f\u8b58\u5225\u3067\u304d\u3066\u3082<\/strong>\u3001<strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u307e\u3067\u306f\u8b58\u5225\u3067\u304d\u306a\u3044<\/strong>\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067TCP\/IP\u3067\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u8b58\u5225\u3059\u308b\uff11\uff16\u30d3\u30c3\u30c8\uff080\uff5e65,535\uff09\u306e<strong>\u30dd\u30fc\u30c8\u756a\u53f7<\/strong>\u3092\u7528\u3044\u308b\u3002<\/p>\n\n\n\n<p>\u30dd\u30fc\u30c8\u756a\u53f7\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306e\u30d8\u30c3\u30c0\u5185\uff08TCP\u30d8\u30c3\u30c0\u3084UDP\u30d8\u30c3\u30c0\u3000\u5f8c\u8ff0\uff09\u3067\u6307\u5b9a\u3055\u308c\u3001\u53d7\u4fe1\u30db\u30b9\u30c8\u306f\u30dd\u30fc\u30c8\u756a\u53f7\u306b\u57fa\u3065\u3044\u3066\u3001\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u51e6\u7406\u3059\u308b\u304b\u3092\u6c7a\u5b9a\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"850\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30dd\u30fc\u30c8\u756a\u53f7.png\" alt=\"\" class=\"wp-image-2136\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30dd\u30fc\u30c8\u756a\u53f7.png 800w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30dd\u30fc\u30c8\u756a\u53f7-282x300.png 282w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30dd\u30fc\u30c8\u756a\u53f7-768x816.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\u30fb<strong>\u30a6\u30a7\u30eb\u30ce\u30a6\u30f3\u30dd\u30fc\u30c8\u756a\u53f7<\/strong><\/p>\n\n\n\n<p>Telnet\u3084FTP\u3001HTTP\u7b49\u306e\u4e00\u822c\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u3042\u3089\u304b\u3058\u3081\u6a19\u6e96\u7684\u306a\u30dd\u30fc\u30c8\u756a\u53f7\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3092<strong>\u30a6\u30a7\u30eb\u30ce\u30a6\u30f3\u30dd\u30fc\u30c8\u756a\u53f7<\/strong>\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u4ee3\u8868\u7684\u306a\u756a\u53f7\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>\u30dd\u30fc\u30c8\u756a\u53f7<\/td><td>\u5185\u5bb9<\/td><td>\u5f79\u5272<\/td><\/tr><tr><td>20,21<\/td><td>FTP<\/td><td>\u30d5\u30a1\u30a4\u30eb\u306e\u8ee2\u900120 \u5236\u5fa121<\/td><\/tr><tr><td>23<\/td><td>Telnet<\/td><td>\u9060\u9694\u64cd\u4f5c<\/td><\/tr><tr><td>25<\/td><td>SMTP<\/td><td>\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u9001\u4fe1<\/td><\/tr><tr><td>53<\/td><td>DNS<\/td><td>\u30c9\u30e1\u30a4\u30f3\u540d\u3068IP\u30a2\u30c9\u30ec\u30b9\u306e\u5909\u63db<\/td><\/tr><tr><td>80<\/td><td>HTTP<\/td><td>\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u30c7\u30fc\u30bf\u306e\u8ee2\u9001<\/td><\/tr><tr><td>110<\/td><td>POP3<\/td><td>\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1<\/td><\/tr><tr><td>123<\/td><td>NTP<\/td><td>\u30bf\u30a4\u30e0\u30b5\u30fc\u30d0\u306e\u6642\u523b\u3092\u3082\u3068\u306b\u6642\u523b\u3092\u540c\u671f\u3055\u305b\u308b<\/td><\/tr><tr><td>443<\/td><td>HTTPS<\/td><td>\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u306e\u8ee2\u9001\uff08\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u5fdc\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u901a\u5e38\u3001\u5404\u30b5\u30fc\u30d0\u304c\u30a6\u30a7\u30eb\u30ce\u30a6\u30f3\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u5229\u7528\u3059\u308b\u306e\u3067\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u610f\u8b58\u3059\u308b\u5fc5\u8981\u306f\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u4eee\u306b\u30b5\u30fc\u30d0\u304c\u5229\u7528\u3059\u308b\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u5909\u66f4\u3059\u308b\u3068\u3001\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u77e5\u3089\u306a\u3044\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30dd\u30fc\u30c8\u756a\u53f7\u306f\u3001\u30db\u30b9\u30c8\u5185\u3067\u77db\u76fe\u304c\u751f\u3058\u306a\u3044\u3088\u3046\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\uff08\u901a\u4fe1\u306e\u5358\u4f4d\uff09\u3054\u3068\u306b\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<p>\u30fb<strong>\u901a\u4fe1\u306e\u8b58\u5225<\/strong><\/p>\n\n\n\n<p>TCP\/IP\u3067\u306f\u3001<\/p>\n\n\n\n<p>\uff08\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u3001\u5b9b\u5148IP\u30a2\u30c9\u30ec\u30b9\u3001\u9001\u4fe1\u5143\u30dd\u30fc\u30c8\u756a\u53f7\u3001\u5b9b\u5148\u30dd\u30fc\u30c8\u756a\u53f7\uff09<\/p>\n\n\n\n<p>\u306e\u7d44\u307f\u5408\u305b\u306b\u3088\u308a\u3001\u5404\u901a\u4fe1\uff08\u3069\u306e\u30db\u30b9\u30c8\u9593\u3068\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u306e\u901a\u4fe1\u304b\uff09\u3092\u8b58\u5225\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<p>\u8981\u6c42\u30d1\u30b1\u30c3\u30c8\u306b\u5bfe\u3059\u308b\u5fdc\u7b54\u30d1\u30b1\u30c3\u30c8\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u3001\u30dd\u30fc\u30c8\u756a\u53f7\u3068\u3082\u306b\u9001\u4fe1\u5143\u3068\u5b9b\u5148\u304c\u5165\u308c\u66ff\u308f\u308b\u3002<\/p>\n\n\n\n<p>\u3088\u3063\u3066\u3001\u30b5\u30fc\u30d0\u304b\u3089\u306e\u5fdc\u7b54\u30d1\u30b1\u30c3\u30c8\u306f\u3001\u9001\u4fe1\u5143\u30dd\u30fc\u30c8\u756a\u53f7\u304c\u30a6\u30a7\u30eb\u30ce\u30a6\u30f3\u30dd\u30fc\u30c8\u756a\u53f7\u306b\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"490\" height=\"319\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u901a\u4fe1\u306e\u8b58\u5225.gif\" alt=\"\" class=\"wp-image-2140\"\/><\/figure>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">TCP(Transmission Control Protocol)<\/h4>\n\n\n\n<p>TCP\u306f\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u578b\uff08\u901a\u4fe1\u306e\u5358\u4f4d\uff09\u306e\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u3057\u3066\u78ba\u8a8d\u5fdc\u7b54\u3084\u30d5\u30ed\u30fc\u5236\u5fa1\u3001\u9806\u5e8f\uff08\u30b7\u30fc\u30b1\u30f3\u30b9\uff09\u5236\u5fa1\u306a\u3069\u306e\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u305f\u3081<strong>\u4fe1\u983c\u6027<\/strong>\u304c\u8981\u6c42\u3055\u308c\u308b\u901a\u4fe1\u306b\u591a\u304f\u7528\u3044\u3089\u308c\u308b\u3002<\/p>\n\n\n\n<p>TCP\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u306e\u4f1d\u9001\u5358\u4f4d\u306f\u30bb\u30b0\u30e1\u30f3\u30c8\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<p>TCP\u3067\u306f\u3001TCP\u30d8\u30c3\u30c0\u306b\u542b\u307e\u308c\u308b\u5404\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u3092\u7528\u3044\u3066\u3001\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b\u306e\u306b\u5fc5\u8981\u306a\u5236\u5fa1\u3092\u5b9f\u73fe\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"698\" height=\"380\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30d8\u30c3\u30c0.gif\" alt=\"\" class=\"wp-image-2141\"\/><\/figure>\n\n\n\n<p>TCP\u3067\u306f\u3001\u901a\u4fe1\u306b\u5148\u7acb\u3063\u3066TCP\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3068\u3088\u3070\u308c\u308b\u8ad6\u7406\u7684\u306a\u901a\u4fe1\u8def\u3092\u78ba\u7acb\u3057\u3001\u901a\u4fe1\u7d42\u4e86\u6642\u306b\u305d\u308c\u3092\u958b\u653e\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306b\u306f\u3001TCP\u30d8\u30c3\u30c0\u4e2d\u306eSYN\u30d5\u30e9\u30b0\u3068ACK\u30d5\u30e9\u30b0\u304c\u7528\u3044\u3089\u308c\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u958b\u653e\u3059\u308b\u306e\u306bFIN\u30d5\u30e9\u30b0\u3068ACK\u30d5\u30e9\u30b0\u304c\u7528\u3044\u3089\u308c\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30d5\u30e9\u30b0.jpg\" alt=\"\" class=\"wp-image-2143\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30d5\u30e9\u30b0.jpg 1024w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30d5\u30e9\u30b0-300x225.jpg 300w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30d5\u30e9\u30b0-768x576.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u5fdc\u7b54\u78ba\u8a8d\u756a\u53f7. \u30d8\u30c3\u30c0\u9577. \u30a6\u30a3\u30f3\u30c9\u30a6. \u30c1\u30a7\u30c3\u30af\u30b5\u30e0. \u7dca\u6025\u30dd\u30a4\u30f3\u30bf. \u30aa\u30d7\u30b7\u30e7\u30f3.<\/figcaption><\/figure>\n\n\n\n<p>\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u78ba\u7acb\u304b\u3089\u5207\u65ad\u307e\u3067\u306e\u6d41\u308c\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u2460\u3000SYN\uff08\u78ba\u7acb\u8981\u6c42\uff09<\/p>\n\n\n\n<p>\u2461\u3000ACK\uff0bSYN\uff08\u2460\u3078\u306e\u5fdc\u7b54\uff0b\u78ba\u7acb\u8981\u6c42\uff09<\/p>\n\n\n\n<p>\u2462\u3000ACK\uff08\u2461\u3078\u306e\u5fdc\u7b54\uff09<\/p>\n\n\n\n<p>\u3053\u306e\uff13\u3064\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u306e\u3084\u308a\u53d6\u308a\u3067\u884c\u308f\u308c\u308b\u3053\u3068\u304b\u3089\u3001<strong>\u30b9\u30ea\u30fc\u30a6\u30a7\u30a4\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af<\/strong>\u3068\u3044\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"829\" height=\"649\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30b3\u30cd\u30af\u30b7\u30e7\u30f3.jpg\" alt=\"\" class=\"wp-image-2144\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30b3\u30cd\u30af\u30b7\u30e7\u30f3.jpg 829w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30b3\u30cd\u30af\u30b7\u30e7\u30f3-300x235.jpg 300w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30b3\u30cd\u30af\u30b7\u30e7\u30f3-768x601.jpg 768w\" sizes=\"(max-width: 829px) 100vw, 829px\" \/><\/figure>\n\n\n\n<p>\u3053\u3053\u3067\u3001SYN\u306fSYNchronous\uff08\u540c\u671f \u30b7\u30f3\u30af\u30ed\uff09\u3092\u3001ACK\u306fACKnowledge\uff08\u80af\u5b9a\u5fdc\u7b54\uff09\u3092\u8868\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">UDP(User Datagram Protocol)<\/h4>\n\n\n\n<p>UDP\u306f\u30a8\u30f3\u30c9\u30b7\u30b9\u30c6\u30e0\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u672b\u7aef\u306b\u4f4d\u7f6e\u3057\u3066\u308b\u30b7\u30b9\u30c6\u30e0\u307e\u305f\u306f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\uff09\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u3067\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30ec\u30b9\u578b\u306e\u901a\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u30c7\u30fc\u30bf\u8ee2\u9001\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>UDP\u306f\u901a\u4fe1\u306b\u5148\u7acb\u3063\u3066\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u3057\u306a\u3044\u305f\u3081\u3001\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b\u6a5f\u80fd\u3092\u6301\u305f\u305a\u3001\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\uff08\u30d1\u30b1\u30c3\u30c8\uff09\u306e\u6b20\u843d\u306a\u3069\u304c\u751f\u3058\u3066\u3082\u305d\u308c\u3092\u56de\u5fa9\u3057\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u4ee3\u308f\u308a\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3088\u308b\u30aa\u30fc\u30d0\u30d8\u30c3\u30c9\uff08\u3042\u308b\u51e6\u7406\u3092\u884c\u3046\u306e\u306b\u4ed8\u968f\u3057\u3066\u304f\u308b\u4f59\u5206\u306a\u51e6\u7406\uff09\u304c\u8efd\u6e1b\u3055\u308c\u3001TCP\u3068\u6bd4\u3079\u3066\u9ad8\u901f\u306a\u901a\u4fe1\u3092\u5b9f\u73fe\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<p>UDP\u306f\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\uff08\u30cd\u30c3\u30c8\u4e0a\u306e\u30e1\u30c7\u30a3\u30a2\u3092\u3059\u3050\u518d\u751f\u3059\u308b\u6280\u8853\uff09\u3084\u30de\u30eb\u30c1\u30e1\u30c7\u30a3\u30a2\uff08\u8907\u6570\u306e\u7a2e\u985e\u3001\u6620\u50cf\u3084\u97f3\u697d\u306a\u3069\u306e\u60c5\u5831\u3092\u3072\u3068\u307e\u3068\u3081\u306b\u3059\u308b\uff09\u3068\u3044\u3063\u305f\u9ad8\u901f\u6027\u3092\u91cd\u8996\u3059\u308b\u901a\u4fe1\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3084\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u3068\u3044\u3063\u305f\u8907\u6570\u306e\u30db\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u30c7\u30fc\u30bf\u3092\u9001\u308a\u305f\u3044\u5834\u5408\u306a\u3069\u306b\u5229\u7528\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"501\" height=\"112\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30ec\u30b9.jpg\" alt=\"\" class=\"wp-image-2145\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30ec\u30b9.jpg 501w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30ec\u30b9-300x67.jpg 300w\" sizes=\"(max-width: 501px) 100vw, 501px\" \/><\/figure>\n\n\n\n<p>UDP\u306f\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u305b\u305a\u3001\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306e\u5236\u5fa1\u3092\u884c\u308f\u306a\u3044\u305f\u3081\u3001TCP\u306e\u3088\u3046\u306b\u591a\u304f\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u5fc5\u8981\u3068\u3057\u306a\u3044\u3002<\/p>\n\n\n\n<p>UDP\u30d8\u30c3\u30c0\u306f\u3001\u9001\u4fe1\u5143\u30dd\u30fc\u30c8\u756a\u53f7\u3001\u5b9b\u5148\u30dd\u30fc\u30c8\u756a\u53f7\u3001\u30d1\u30b1\u30c3\u30c8\u9577\u3001\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3067\u69cb\u6210\u3055\u308c\u3066\u304a\u308a\u3001TCP\u3068\u6bd4\u8f03\u3057\u3066\u5358\u7d14\u306a\u69cb\u6210\u3068\u306a\u3063\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"743\" height=\"272\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30e6\u30c7\u30d4.jpg\" alt=\"\" class=\"wp-image-2146\" srcset=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30e6\u30c7\u30d4.jpg 743w, https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30e6\u30c7\u30d4-300x110.jpg 300w\" sizes=\"(max-width: 743px) 100vw, 743px\" \/><\/figure>\n\n\n\n<p>UDP\u306f\u3001\u4fe1\u983c\u6027\u306f\u52a3\u308b\u304c\u30aa\u30fc\u30d0\u30d8\u30c3\u30c9\u304c\u5c0f\u3055\u3044\u5206\u9ad8\u901f\u3067\u3001\u9ad8\u901f\u6027\u3092\u91cd\u8996\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u540c\u5831\u901a\u4fe1\u3067\u5229\u7528\u3055\u308c\u308b\u7279\u8272\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">TCP\/IP\u306b\u304a\u3051\u308b\u30a2\u30c9\u30ec\u30b9<\/h4>\n\n\n\n<p>TCP\/IP\u306b\u304a\u3044\u3066\u30a2\u30c9\u30ec\u30b9\u306f\u4e09\u3064\u767b\u5834\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u2460\u30dd\u30fc\u30c8\u756a\u53f7\u3000<\/p>\n\n\n\n<p>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306b\u304a\u3044\u3066\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8b58\u5225\u3092\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u2461IP\u30a2\u30c9\u30ec\u30b9\u3000<\/p>\n\n\n\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64\u306b\u304a\u3044\u3066\u30db\u30b9\u30c8\u306e\u8b58\u5225\u3092\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u2462MAC\u30a2\u30c9\u30ec\u30b9\u3000<\/p>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u306b\u304a\u3044\u3066\u96a3\u63a5\u6a5f\u5668\u3092\u8b58\u5225\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306e\u5f79\u5272<\/h4>\n\n\n\n<p>\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u306b\u304a\u3051\u308b\u4ee3\u8868\u7684\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u306fTCP\u3068UDP\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5f79\u5272\u306f\u3001<strong>\u4fe1\u983c\u6027\u306e\u78ba\u4fdd<\/strong>\u3084<strong>\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8<\/strong>\uff08\u5358\u4f4d\u6642\u9593\u5f53\u305f\u308a\u306e\u51e6\u7406\u80fd\u529b\uff09<strong>\u306e\u7dad\u6301<\/strong>\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u4e0a\u4f4d\u5c64\u3067\u3042\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306e<strong>\u5404\u7a2e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7279\u5b9a<\/strong>\u3092\u884c\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"491\" height=\"537\" src=\"https:\/\/advanceadvance.net\/wp-content\/uploads\/2021\/01\/\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64.gif\" alt=\"\" class=\"wp-image-2147\"\/><\/figure>\n\n\n\n<p>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5f8c\u8a18<\/h4>\n\n\n\n<p>\u3053\u306e\u3078\u3093\u307e\u3067\u304f\u308b\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5168\u8c8c\u304c\u304a\u307c\u308d\u3052\u306a\u304c\u3089\u628a\u63e1\u3067\u304d\u305d\u3046\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>TCP\/IP\u306e\u4e0a\u4f4d\u5c64\u304b\u3089\u30c7\u30fc\u30bf\u304c\u4e0b\u4f4d\u5c64\u306b\u5f15\u304d\u6e21\u3055\u308c\u3001\u305d\u3089\u304c\u76f8\u624b\u5074\u306e\u4e0b\u4f4d\u5c64\u304b\u3089\u4e0a\u4f4d\u5c64\u3078\u3068\u6e21\u308a\u3001\u4e92\u3044\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u300c\u4f1a\u8a71\u300d\u304c\u6210\u7acb\u3059\u308b\u308f\u3051\u3060\u3002<\/p>\n\n\n\n<p>\u4eca\u65e5\u306f\u738b\u5b50\u795e\u793e\u306b\u521d\u8a63\u306b\u884c\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"960\" 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