{"id":5440,"date":"2024-03-13T15:02:49","date_gmt":"2024-03-13T06:02:49","guid":{"rendered":"https:\/\/www.datasmart.co.jp\/knowledge\/?p=5440"},"modified":"2025-03-03T20:17:33","modified_gmt":"2025-03-03T11:17:33","slug":"wifi-technology","status":"publish","type":"post","link":"https:\/\/www.datasmart.co.jp\/knowledge\/wifi-technology\/","title":{"rendered":"\u7121\u7dda\u6280\u8853\u2460\u7121\u7ddaLAN\u30fbWi-Fi\uff08\u30ef\u30a4\u30d5\u30a1\u30a4\uff09"},"content":{"rendered":"\n

\u7121\u7ddaLAN\uff08Wireless Local Area Network\uff09\u3068\u306f\u3001\u30aa\u30d5\u30a3\u30b9\u30d3\u30eb\u3001\u5b66\u6821\u3001\u81ea\u5b85\u306a\u3069\u3067\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u305b\u305a\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u63a5\u7d9a\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u300cWi-Fi\uff08\u30ef\u30a4\u30d5\u30a1\u30a4\uff09\u300d\u3068\u3057\u3066\u8a8d\u77e5\u3055\u308c\u3066\u304a\u308a\u3001\u30ef\u30a4\u30d5\u30a1\u30a4\u306a\u3089\u308f\u304b\u308b\uff01\u3068\u3044\u3046\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u7121\u7ddaLAN\u306b\u3064\u3044\u3066\u89e3\u8aac\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u7121\u7ddaLAN\u3068\u306f<\/h2><\/p>\n\n\n\n

\u7121\u7dda\u901a\u4fe1\u6280\u8853\u3092\u4f7f\u7528\u3057\u3066\u5730\u7406\u7684\u306b\u8fd1\u3044\u7bc4\u56f2\u5185\u3067\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3084\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u3092\u63d0\u4f9b\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n

\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f<\/h2>\n\n\n\n

\u7121\u7ddaLAN\u306f\u3001\u4e00\u822c\u7684\u306b\u7121\u7dda\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\uff08AP\uff09\u3092\u4ecb\u3057\u3066\u52d5\u4f5c\u3057\u307e\u3059\u3002\u3053\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u6709\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\uff08\u4f8b\u3048\u3070\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\uff09\u306b\u63a5\u7d9a\u3055\u308c\u3001\u7121\u7dda\u4fe1\u53f7\u3092\u4ecb\u3057\u3066\u5468\u56f2\u306e\u30c7\u30d0\u30a4\u30b9\u3068\u901a\u4fe1\u3057\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u304c\u3053\u306e\u7121\u7dda\u4fe1\u53f7\u306e\u7bc4\u56f2\u5185\u306b\u3042\u308b\u5834\u5408\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ea\u30bd\u30fc\u30b9\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u306e\u63d0\u4f9b<\/h4>\n\n\n\n

 \u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u7121\u7dda\u307e\u305f\u306f\u6709\u7dda\u306e\u63a5\u7d9a\u7d4c\u8def\u3092\u4ecb\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u304c\u901a\u4fe1\u3059\u308b\u305f\u3081\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3001\u30bf\u30d6\u30ec\u30c3\u30c8\u3001\u30ce\u30fc\u30c8\u30d1\u30bd\u30b3\u30f3\u3001IoT\u30c7\u30d0\u30a4\u30b9\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30c7\u30d0\u30a4\u30b9\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u4fe1\u53f7\u306e\u4e2d\u7d99<\/h4>\n\n\n\n

\u7121\u7ddaLAN\u306e\u5834\u5408\u3001\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u30c7\u30d0\u30a4\u30b9\u3068\u306e\u9593\u3067\u4fe1\u53f7\u3092\u4e2d\u7d99\u3057\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u30c7\u30d0\u30a4\u30b9\u306f\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306b\u63a5\u7d9a\u3057\u3066\u901a\u4fe1\u3092\u884c\u3044\u307e\u3059\u3002\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u304c\u8a2d\u7f6e\u3055\u308c\u305f\u5834\u6240\u306b\u3088\u3063\u3066\u306f\u3001\u8907\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306b\u63a5\u7d9a\u3057\u3066\u901a\u4fe1\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u306e\u63d0\u4f9b<\/h4>\n\n\n\n

\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u5236\u5fa1\u3059\u308b\u305f\u3081\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002WPA2\u3084WPA3\u306a\u3069\u306e\u6697\u53f7\u5316\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u3066\u901a\u4fe1\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u306e\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u3001MAC\u30a2\u30c9\u30ec\u30b9\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3084\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u30ea\u30b9\u30c8\uff08ACL\uff09\u306a\u3069\u306e\u6a5f\u80fd\u3092\u4f7f\u7528\u3057\u3066\u3001\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u307f\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406<\/h4>\n\n\n\n

\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3092\u76e3\u8996\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u8a2d\u5b9a\u3092\u5909\u66f4\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306e\u7ba1\u7406\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u9060\u9694\u3067\u306e\u8a2d\u5b9a\u5909\u66f4\u3001\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u76e3\u8996\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

\u7121\u7dda\u898f\u683c\u3068\u5468\u6ce2\u6570\u5e2f\u57df\u306e\u30b5\u30dd\u30fc\u30c8<\/h4>\n\n\n\n

\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u7121\u7dda\u898f\u683c\uff08\u4f8b: 802.11a\/b\/g\/n\/ac\/ax\uff09\u3084\u5468\u6ce2\u6570\u5e2f\u57df\uff082.4GHz\u304a\u3088\u30735GHz\u5e2f\uff09\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7570\u306a\u308b\u30c7\u30d0\u30a4\u30b9\u3084\u4f7f\u7528\u74b0\u5883\u306b\u9069\u3057\u305f\u63a5\u7d9a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u3068\u306f<\/h3>\n\n\n\n

\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\uff08Access Point\u3001AP\uff09\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u3084\u6709\u7ddaLAN\uff08Ethernet\uff09\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30d0\u30a4\u30b9\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306e\u4e3b\u306a\u6a5f\u80fd\u3068\u5f79\u5272\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\n
memo<\/div>\n

\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u672c\u7684\u306a\u69cb\u6210\u8981\u7d20\u3067\u3042\u308a\u3001\u4f01\u696d\u3084\u5bb6\u5ead\u306a\u3069\u3055\u307e\u3056\u307e\u306a\u74b0\u5883\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u67d4\u8edf\u6027\u3001\u62e1\u5f35\u6027\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306a\u3069\u306e\u9762\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6027\u80fd\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002<\/p><\/div>\n\n\n\n

\u6a19\u6e96\u3068\u5468\u6ce2\u6570\u5e2f<\/h2>\n\n\n\n

\u7121\u7ddaLAN\u6280\u8853\u306f\u3001IEEE 802.11\u6a19\u6e96\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6a19\u6e96\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u7570\u306a\u308b\u898f\u683c\u304c\u3042\u308a\u3001\u305d\u308c\u305e\u308c\u304c\u7570\u306a\u308b\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3084\u5468\u6ce2\u6570\u5e2f\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

IEEE 802.11\u3068\u306f<\/h4>\n\n\n\n

IEEE 802.11\u306f\u3001\u7121\u7ddaLAN\uff08Wireless Local Area Network\u3001WLAN\uff09\u306e\u6a19\u6e96\u5316\u3092\u884c\u3046\u305f\u3081\u306eIEEE\uff08Institute of Electrical and Electronics Engineers\u3001\u7c73\u56fd\u96fb\u6c17\u96fb\u5b50\u5b66\u4f1a\uff09\u306e\u898f\u683c\u3067\u3059\u3002\u3053\u306e\u898f\u683c\u306f\u3001\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u95a2\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u6280\u8853\u4ed5\u69d8\u3092\u5b9a\u7fa9\u3057\u3001\u7570\u306a\u308b\u30d9\u30f3\u30c0\u30fc\u9593\u3067\u306e\u76f8\u4e92\u904b\u7528\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u3044\u304f\u3064\u304b\u306e\u898f\u683c\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u898f\u683c<\/strong><\/td>\u30d0\u30fc\u30b8\u30e7\u30f3<\/strong><\/td>\u6700\u5927\u7406\u8ad6\u30c7\u30fc\u30bf\u30ec\u30fc\u30c8<\/strong><\/td>\u5468\u6ce2\u6570\u5e2f\u57df<\/strong><\/td>\u5229\u7528\u53ef\u80fd\u306a\u5468\u6ce2\u6570\u5e2f\u57df<\/strong><\/td>\u4e3b\u306a\u7279\u5fb4<\/strong><\/td><\/tr>
802.11a<\/td>1.0<\/td>\u6700\u592754 Mbps<\/td>5 GHz<\/td>5.15 – 5.85 GHz<\/td>\u9ad8\u901f\u3067\u4fe1\u983c\u6027\u306e\u3042\u308b\u30c7\u30fc\u30bf\u8ee2\u9001<\/td><\/tr>
802.11b<\/td>1.0<\/td>\u6700\u592711 Mbps<\/td>2.4 GHz<\/td>2.4 – 2.4835 GHz<\/td>\u4f4e\u30b3\u30b9\u30c8\u3067\u5e83\u304f\u666e\u53ca\u3057\u305f\u521d\u671f\u306e\u7121\u7ddaLAN\u898f\u683c<\/td><\/tr>
802.11g<\/td>1.0<\/td>\u6700\u592754 Mbps<\/td>2.4 GHz<\/td>2.4 – 2.4835 GHz<\/td>802.11b\u306e\u5f8c\u7d99\u3067\u3001\u9ad8\u901f\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u30b5\u30dd\u30fc\u30c8<\/td><\/tr>
802.11n<\/td>4.0<\/td>\u6700\u5927600 Mbps<\/td>2.4 GHz\u307e\u305f\u306f5 GHz<\/td>2.4 GHz\u304a\u3088\u30735 GHz<\/td>MIMO\u6280\u8853\u3092\u5c0e\u5165\u3057\u3001\u9ad8\u901f\u30fb\u5e83\u7bc4\u306a\u30ab\u30d0\u30ec\u30c3\u30b8\u3092\u63d0\u4f9b<\/td><\/tr>
802.11ac<\/td>5.0<\/td>\u6700\u59276.77 Gbps<\/td>5 GHz<\/td>5.15 – 5.85 GHz<\/td>\u9ad8\u901f\u30c7\u30fc\u30bf\u8ee2\u9001\u3068MU-MIMO\u306a\u3069\u306e\u591a\u304f\u306e\u65b0\u6a5f\u80fd\u3092\u8ffd\u52a0<\/td><\/tr>
802.11ax<\/td>6.0<\/td>\u6700\u59279.6 Gbps<\/td>2.4 GHz\u307e\u305f\u306f5 GHz<\/td>2.4 GHz\u304a\u3088\u30735 GHz<\/td>\u9ad8\u5bc6\u5ea6\u74b0\u5883\u3067\u306e\u6027\u80fd\u5411\u4e0a\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u30a6\u30a7\u30a4\u30af\u30bf\u30a4\u30e0\u3001OFDMA\u306a\u3069\u306e\u65b0\u6a5f\u80fd\u306e\u5c0e\u5165<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u3053\u308c\u3089\u306e\u898f\u683c\u306f\u30012.4 GHz\u30845 GHz\u306a\u3069\u306e\u5468\u6ce2\u6570\u5e2f\u3092\u4f7f\u7528\u3057\u3001\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3001\u7bc4\u56f2\u3001\u4fe1\u53f7\u306e\u5e72\u6e09\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n\n\n\n

\n
memo<\/div>\n

IEEE 802.11\u898f\u683c\u306f\u3001\u7121\u7ddaLAN\u306b\u95a2\u9023\u3059\u308b\u7269\u7406\u5c64\uff08PHY\uff09\u3068\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff08MAC\uff09\u306b\u95a2\u3059\u308b\u898f\u683c\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7121\u7dda\u30c7\u30d0\u30a4\u30b9\u540c\u58eb\u304c\u901a\u4fe1\u3059\u308b\u969b\u306e\u7269\u7406\u7684\u306a\u63a5\u7d9a\u3068\u3001\u30c7\u30fc\u30bf\u3092\u4f1d\u9001\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p><\/div>\n\n\n\n

\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/h2>\n\n\n\n

\u7121\u7ddaLAN\u306f\u4fbf\u5229\u3067\u3059\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u30ea\u30b9\u30af\u3082\u4f34\u3044\u307e\u3059\u3002\u7121\u7dda\u901a\u4fe1\u306f\u3001\u7269\u7406\u7684\u306a\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u304c\u96e3\u3057\u3044\u305f\u3081\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3084\u30c7\u30fc\u30bf\u76d7\u8074\u306e\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001WPA\uff08Wi-Fi Protected Access\uff09\u3001WPA2\u3001\u305d\u3057\u3066\u6700\u65b0\u306eWPA3\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u958b\u767a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u3068\u8a8d\u8a3c\u3092\u63d0\u4f9b\u3057\u3001\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5168\u6027\u3092\u9ad8\u3081\u307e\u3059\u3002<\/p>\n\n\n\n

WPA\u3068\u306f<\/h3>\n\n\n\n

WPA\uff08Wi-Fi Protected Access\uff09\u306f\u3001\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3051\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002WPA\u306f\u3001WEP\uff08Wired Equivalent Privacy\uff09\u3068\u3044\u3046\u53e4\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u8106\u5f31\u6027\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306b\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

WPA\u306f\u3001\u4ee5\u4e0b\u306e\u4e3b\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n

\u5f37\u529b\u306a\u6697\u53f7\u5316<\/h4>\n\n\n\n

WPA\u306f\u3001TKIP\uff08Temporal Key Integrity Protocol\uff09\u307e\u305f\u306fCCMP\uff08Counter Mode with Cipher Block Chaining Message Authentication Code Protocol\uff09\u3068\u547c\u3070\u308c\u308b\u6697\u53f7\u5316\u65b9\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30c7\u30fc\u30bf\u306e\u6a5f\u5bc6\u6027\u304c\u5411\u4e0a\u3057\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u304b\u3089\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

\u8a8d\u8a3c\u3068\u9375\u7ba1\u7406<\/h4>\n\n\n\n

 WPA\u306f\u3001\u30d7\u30ea\u5171\u6709\u9375\uff08Pre-Shared Key\u3001PSK\uff09\u3084802.1X\u8a8d\u8a3c\uff08EAP\uff09\u306a\u3069\u306e\u65b9\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u8a8d\u8a3c\u3068\u9375\u7ba1\u7406\u3092\u884c\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3084\u30e6\u30fc\u30b6\u30fc\u304c\u6b63\u898f\u306e\u3082\u306e\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u52d5\u7684\u306a\u9375\u306e\u751f\u6210<\/h4>\n\n\n\n

 WPA\u306f\u3001TKIP\u307e\u305f\u306fCCMP\u306b\u3088\u3063\u3066\u6697\u53f7\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u901a\u4fe1\u306b\u5bfe\u3057\u3066\u52d5\u7684\u306a\u9375\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u9375\u304c\u5b9a\u671f\u7684\u306b\u5909\u66f4\u3055\u308c\u308b\u305f\u3081\u3001\u653b\u6483\u8005\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6697\u53f7\u5316\u3092\u89e3\u8aad\u3059\u308b\u96e3\u6613\u5ea6\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u7528\u9014<\/h2>\n\n\n\n

\u7121\u7ddaLAN\u306f\u3001\u4f01\u696d\u3084\u6559\u80b2\u6a5f\u95a2\u3001\u516c\u5171\u30b9\u30da\u30fc\u30b9\u3001\u305d\u3057\u3066\u5bb6\u5ead\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u74b0\u5883\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30e2\u30d0\u30a4\u30eb\u30c7\u30d0\u30a4\u30b9\u3001\u30e9\u30c3\u30d7\u30c8\u30c3\u30d7\u3001\u30b9\u30de\u30fc\u30c8\u30db\u30fc\u30e0\u30c7\u30d0\u30a4\u30b9\u306a\u3069\u3001\u7121\u7dda\u63a5\u7d9a\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3042\u3089\u3086\u308b\u7a2e\u985e\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u3001\u7121\u7ddaLAN\u3092\u4ecb\u3057\u3066\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084\u4ed6\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30ea\u30bd\u30fc\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u7121\u7ddaLAN\u306e\u6280\u8853\u306f\u9032\u5316\u3057\u7d9a\u3051\u3066\u304a\u308a\u3001\u901f\u5ea6\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u5229\u4fbf\u6027\u306e\u5411\u4e0a\u3092\u76ee\u6307\u3057\u3066\u3044\u307e\u3059\u3002\u4eca\u5f8c\u3082\u3053\u306e\u6280\u8853\u306f\u3001\u79c1\u305f\u3061\u306e\u751f\u6d3b\u3084\u4ed5\u4e8b\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u7d9a\u3051\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u7121\u7ddaLAN\uff08Wireless Local Area Network\uff09\u3068\u306f\u3001\u30aa\u30d5\u30a3\u30b9\u30d3\u30eb\u3001\u5b66\u6821\u3001\u81ea\u5b85\u306a\u3069\u3067\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u305b\u305a\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u63a5\u7d9a\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u300cW […]<\/p>\n","protected":false},"author":1,"featured_media":5442,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"footnotes":""},"categories":[105],"tags":[],"class_list":["post-5440","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-recovery-guides"],"yoast_head":"\n\u7121\u7dda\u6280\u8853\u2460\u7121\u7ddaLAN\u30fbWi-Fi\uff08\u30ef\u30a4\u30d5\u30a1\u30a4\uff09 | \u30c7\u30fc\u30bf\u5fa9\u65e7\u30ca\u30ec\u30c3\u30b8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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