{"id":2241,"date":"2019-12-02T20:04:33","date_gmt":"2019-12-02T11:04:33","guid":{"rendered":"https:\/\/www.bold.ne.jp\/engineer-club\/?post_type=study_report&#038;p=2241"},"modified":"2019-12-02T20:04:33","modified_gmt":"2019-12-02T11:04:33","slug":"network-basic-vol-2","status":"publish","type":"study_report","link":"https:\/\/www.bold.ne.jp\/engineer-club\/study_report\/network-basic-vol-2","title":{"rendered":"\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u57fa\u790e\u52c9\u5f37\u4f1a\u30ec\u30dd\u30fc\u30c8 Vol.2"},"content":{"rendered":"<p>IT\u696d\u754c<span>(<\/span>\u4e3b\u306b\u30a4\u30f3\u30d5\u30e9\u73fe\u5834<span>)<\/span>\u3067\u306e\u696d\u52d9\u9042\u884c\u306b\u306f\u300c\u6700\u4f4e\u9650\u3053\u306e\u7a0b\u5ea6\u306f\u77e5\u3063\u3066\u304a\u304b\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u300d\u3068\u8a00\u308f\u308c\u308b\u6280\u8853\u304c\u3042\u308a\u3001\u305d\u306e\u4e2d\u3067\u6700\u3082\u57fa\u790e\u3068\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066\u3001\u3053\u308c\u307e\u3067\u591a\u304f\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u300c\u4e2d\u9014\u534a\u7aef\u306b\u7406\u89e3\u3057\u3066\u3044\u308b\u300d\u3068\u601d\u308f\u308c\u308b\u500b\u6240<span>(<\/span>\u57fa\u790e<span>)<\/span>\u3092\u5fb9\u5e95\u7684\u306b\u89e3\u8aac\u3057\u3001\u4eca\u5f8c\u306e<span>IT<\/span>\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066\u306e\u6d3b\u8e8d\u306b\u8ca2\u732e\u3057\u305f\u3044\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002\u6211\u304c\u793e\u306e\u30a8\u30ad\u30b9\u30d1\u30fc\u30c8\u304c\u8a8d\u5b9a\u3059\u308b\u8a66\u9a13\u3092\u542b\u3081\u3001\u5168<span>3<\/span>\u56de\u306e\u300c<span>NW<\/span>\u57fa\u790e\u52c9\u5f37\u4f1a\u300d\u3092\u30ec\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n<h2><strong><\/strong><strong>\uff11\uff0e\u4eca\u56de\u306e\u30c6\u30fc\u30de\u3068\u5185\u5bb9<\/strong><\/h2>\n<p>\u4eca\u56de\u7b2c<span>2<\/span>\u56de\u76ee\u306e\u30c6\u30fc\u30de\u306f\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u300d\u3067\u3059\u3002<\/p>\n<p>IT\u696d\u754c\u306b\u643a\u308f\u3063\u3066\u3044\u308c\u3070\u5c11\u306a\u304f\u3068\u3082\u3001\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u300d\u3068\u3044\u3046\u8a00\u8449\u3092\u805e\u3044\u305f\u3053\u3068\u306a\u3044\u3068\u3044\u3046\u65b9\u306f\u3044\u306a\u3044\u7b48\u3067\u3059\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u3001\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3063\u3066\u4f55\uff1f\u300d\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306e\u7a2e\u985e\u3068\u306f\uff1f\u300d\u3068\u805e\u304f\u3068\u9014\u7aef\u306b\u3001\u6b86\u3069\u306e\u53d7\u8b1b\u751f\u306f\u56de\u7b54\u51fa\u6765\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u66f4\u306b\u3001\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u5206\u5272\u3068\u306f\uff1f\u300d\u3068\u554f\u308f\u308c\u308b\u3068\u3001\u300c\u3048\u3063\uff1f\u300d\u3068\u601d\u3063\u305f\u308a\u3001\u9996\u3092\u50be\u3052\u305f\u308a\u3059\u308b\u53d7\u8b1b\u751f\u3084\u3001\u300c\u805e\u3044\u305f\u3053\u3068\u306f\u3042\u308b\u3051\u3069\u30fb\u30fb\u300d\u3001\u82e6\u624b\u610f\u8b58\u304c\u3042\u308b\u306e\u304b\u602a\u8a1d\u306a\u9854\u3092\u3055\u308c\u308b\u53d7\u8b1b\u751f\u306e\u65b9\u304c\u6570\u591a\u304f\u3044\u307e\u3057\u305f\u3002\u5168\uff13\u56de\u306e\u52c9\u5f37\u4f1a\u306e\u4e2d\u3067\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u300d\u306f\u6700\u3082\u91cd\u8981\u3068\u306a\u308b\u5358\u5143\u3067\u3042\u308a\u3001\u4e00\u756a\u306e\u5c71\u5834\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u300d\u306b\u5bfe\u3059\u308b\u66d6\u6627\u306a\u7406\u89e3\u3084\u82e6\u624b\u610f\u8b58\u3092\u89e3\u6d88\u3059\u308b\u70ba\u306b\u3001\u4eca\u56de\u306f<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306b\u3064\u3044\u3066\u52c9\u5f37\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><strong><\/strong><strong>\uff11-\uff11\uff0eIP<\/strong><strong>\u30a2\u30c9\u30ec\u30b9\u3068\u306f<\/strong><\/h3>\n<p>\u7b2c<span>1<\/span>\u56de\u76ee\u306e\u5fa9\u7fd2\u3082\u517c\u306d\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\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\u3060\uff01\u300d\u3068\u8aac\u660e\u3092\u3059\u308b\u3068\u3001\u53d7\u8b1b\u751f\u305f\u3061\u306f\u7570\u53e3\u540c\u97f3\u306b\u300c\u3046\u3093\uff01\u305d\u306e\u901a\u308a\uff01\u300d\u3068\u3044\u3063\u305f\u8868\u60c5\u3067\u3057\u305f\u3002\u300c\u3067\u306f\u3069\u3046\u3084\u3063\u3066\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u540c\u58eb\u306f\u76f8\u624b\u3092\u8a8d\u8b58\u3059\u308b\u306e\u304b\uff1f\u300d\u3068\u554f\u3044\u304b\u3051\u308b\u3068\u3001\u9014\u7aef\u306b\u300c\u4f55\u3060\u308d\u3046\u30fb\u30fb\uff1f\u300d\u3068\u3044\u3046\u8868\u60c5\u306b\u5909\u308f\u308a\u307e\u3057\u305f\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso15-1-550x161.png\" alt=\"\" width=\"550\" height=\"161\" class=\"size-medium wp-image-2244 aligncenter\" \/><\/p>\n<p>\u305d\u3053\u3067\u8b1b\u5e2b\u3088\u308a\u3001\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084<span>LAN<\/span>\u306a\u3069\u306e<span>IP<\/span>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306a\u3069\u306b\u5272\u308a\u632f\u3089\u308c\u308b\u8b58\u5225\u756a\u53f7\u306e\u3053\u3068\u3067\u3001\u3053\u306e<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3063\u3066\u76f8\u624b\u3092\u8a8d\u8b58\u3059\u308b\u306e\u3067\u3059\u3002\u300d\u3068\u8aac\u660e\u3092\u52a0\u3048\u305f\u3068\u3053\u308d\u3001\u534a\u6570\u4ee5\u4e0a\u306e\u53d7\u8b1b\u8005\u305f\u3061\u306f\u300c\u3042\u3063\u3001\u305d\u3046\u3044\u3046\u3053\u3068\u304b\uff01\u300d\u3068\u7d0d\u5f97\u3057\u305f\u9854\u3092\u6d6e\u304b\u3079\u3066\u304a\u308a\u307e\u3057\u305f\u3002\u4f46\u3057\u3001\u305d\u308c\u3067\u3082\u300c\u30d4\u30f3\u300d\u3068\u3053\u306a\u3044\u53d7\u8b1b\u751f\u3082\u6570\u540d\u304a\u308a\u3001\u7d9a\u3051\u3066\u8b1b\u5e2b\u304c\u300c\u4f8b\u3048\u3070\u96fb\u8a71\u3092\u639b\u3051\u308b\u6642\u306b\u306f\u3001\u96fb\u8a71\u756a\u53f7\u3067\u76f8\u624b\u306e\u9023\u7d61\u5148\u3092\u7279\u5b9a\u3057\u307e\u3059\u3088\u306d\uff1f\u3000\u305d\u308c\u3068\u8003\u3048\u65b9\u306f\u540c\u3058\u3067\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e\u5834\u5408\u306f\u3001<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3063\u3066\u3001\u76f8\u624b\u5148\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3092\u7279\u5b9a\u3059\u308b\u306e\u3067\u3059\u3088\uff01\u300d\u3002\u3068\u88dc\u8db3\u8aac\u660e\u3092\u52a0\u3048\u305f\u3068\u3053\u308d\u3001\u53d7\u8b1b\u751f\u5168\u54e1\u8b0e\u304c\u89e3\u3051\u305f\u306e\u304b\u4e00\u77ac\u306b\u3057\u3066\u300c\u306a\u308b\u307b\u3069\uff01\u300d\u3068\u3044\u3046\u660e\u308b\u3044\u8868\u60c5\u306b\u5909\u308f\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3068\u540c\u6642\u306b\u3001<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3092\u300c\u96fb\u8a71\u756a\u53f7\u300d\u3068\u3044\u3046\u300c\u65e5\u5e38\u751f\u6d3b\u3067\u65e5\u3005\u5f53\u305f\u308a\u524d\u306e\u3088\u3046\u306b\u4f7f\u3063\u3066\u3044\u308b\u3082\u306e\u300d\u306b\u4f8b\u3048\u3066\u8aac\u660e\u3059\u308b\u3001\u8b1b\u5e2b\u306e\u8aac\u660e\u306b\u3082\u5de5\u592b\u304c\u51dd\u3089\u3055\u308c\u3066\u304a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso16-1-550x161.png\" alt=\"\" width=\"550\" height=\"161\" class=\"size-medium wp-image-2246 aligncenter\" \/><\/p>\n<h3><strong><\/strong><strong>\uff11-\uff12\uff0eIP<\/strong><strong>\u30a2\u30c9\u30ec\u30b9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3<\/strong><\/h3>\n<p>IP\u30a2\u30c9\u30ec\u30b9\u306e\u6982\u5ff5\u306e\u8aac\u660e\u304c\u8151\u306b\u843d\u3061\u305f\u53d7\u8b1b\u751f\u306e\u8868\u60c5\u3092\u78ba\u8a8d\u3057\u3001\u8b1b\u5e2b\u306f\u7d9a\u3051\u3066\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u300d\u306f<span>2<\/span>\u3064\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u3042\u308b\u30021\u3064\u306f\u300c<span>IPv4<\/span>\u300d\u3002\u305d\u3057\u3066\u3082\u3046<span>1<\/span>\u3064\u304c\u300c<span>IPv6<\/span>\u300d\u3067\u3042\u308b\u3068\u8aac\u660e\u3057\u307e\u3057\u305f\u3002\u300c\u3067\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u6982\u8981\u3084\u7279\u5fb4\u3092\u8aac\u660e\u3057\u307e\u3059\u300d\u3068\u5207\u308a\u51fa\u3057\u3001\u9806\u6b21\u8aac\u660e\u3092\u9032\u3081\u3066\u3044\u304f\u3068\u3001\u53d7\u8b1b\u751f\u305f\u3061\u306f\u3042\u3089\u304b\u3058\u3081\u7528\u610f\u3055\u308c\u305f\u7a74\u57cb\u3081\u30ce\u30fc\u30c8\u306b\u5fc5\u6b7b\u306b\u306a\u308a\u30e1\u30e2\u3092\u53d6\u308a\u59cb\u3081\u307e\u3057\u305f\u3002<\/p>\n<p>\u2460IPv4<br \/>\n1) \u6982\u8981<br \/>\n\u30fb\u73fe\u5728\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u6a19\u6e96\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30d7\u30ed\u30c8\u30b3\u30eb<br \/>\n\u30fb<span>TCP\/IP<\/span>\u306e\u57fa\u672c\u6a5f\u80fd\u3068\u3057\u3066\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306a\u3069\u3067\u4e16\u754c\u4e2d\u5e83\u304f\u3044\u3089\u308c\u3066\u3044\u308b<br \/>\n2) \u7279\u5fb4<br \/>\n\u3000\u3000\u30fb<span>0<\/span>\uff5e<span>255<\/span>\u307e\u3067<span>8<\/span>\u30d3\u30c3\u30c8\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\uff14\u3064\u5099\u3048\u3066\u3044\u308b<br \/>\n\u3000\u3000\u30fb<span>8<\/span>\u30d3\u30c3\u30c8\u00d7\uff14\u30bb\u30b0\u30e1\u30f3\u30c8<span> = 32<\/span>\u30d3\u30c3\u30c8<strong>\u3000<br \/>\n<\/strong><strong>\u3000\u3000<\/strong>\u30fb<span>4,294,967,296<\/span>\uff08\u7d04<span>43<\/span>\u5104\uff09\u901a\u308a\u306e\u6570\u5b57\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u4f5c\u308b\u3053\u3068\u304c\u51fa\u6765\u308b<br \/>\n3) \u30a2\u30c9\u30ec\u30b9\u7bc4\u56f2<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb<span>0.0.0.0 <\/span>\uff5e <span>255.255.255.255<\/span>\u3067\u6307\u5b9a\u3059\u308b\u3000\u203b<span> 300.255.255.1<\/span>\u306f\u3042\u308a\u5f97\u306a\u3044\uff01<br \/>\n4) \u30a2\u30c9\u30ec\u30b9\u306e\u8868\u8a18\u4f8b<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u8a18\u3059\u308b<br \/>\n\u3000\u3000\u3000<span>10. 0. 0. 0<br \/>\n<\/span>\u3000\u3000\u3000<span>172.16.10.101<br \/>\n<\/span>\u3000\u3000\u3000<span>192.168.16.128<br \/>\n<\/span>\u4e00\u901a\u308a\u306e\u8aac\u660e\u3092\u8b1b\u5e2b\u304c\u7d42\u3048\u305f\u5f8c\u3067\u3001\u53d7\u8b1b\u751f\u305f\u3061\u306b\u3053\u306e\u3088\u3046\u306a\u554f\u3044\u304b\u3051\u3092\u3057\u307e\u3059\u3002<\/p>\n<p>\u300c<span>IPv4<\/span>\u3067\u306f\u7d04<span>43<\/span>\u5104\u500b\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002\u3067\u3082\u7686\u3055\u3093\u3001\u3061\u3087\u3063\u3068\u8003\u3048\u3066\u307f\u3066\u4e0b\u3055\u3044\u3002\u5168\u4e16\u754c\u306e\u4eba\u53e3\u3063\u3066\u4f55\u4eba\u304b\u3054\u5b58\u77e5\u3067\u3059\u304b\uff1f\u3000\u7d04<span>70<\/span>\u5104\u4eba\u3067\u3059\u3002\u300d\u3068\u3002\u3000\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306e\u8aac\u660e\u3092\u3057\u3066\u3044\u308b\u306e\u306b\u3001\u4e16\u754c\u306e\u7dcf\u4eba\u53e3\u306e\u8a71\u984c\u3092\u6301\u3061\u51fa\u3057\u3066\u4e00\u4f53\u4f55\u3092\u8a00\u3044\u305f\u3044\u3093\u3060\u308d\u3046\uff1f\u300d\u3068\u3044\u3046\u53d7\u8b1b\u751f\u305f\u3061\u306f\u8907\u96d1\u306a\u8868\u60c5\u3092\u6d6e\u304b\u3079\u3066\u307e\u3057\u305f\u3002\u305d\u306e\u8868\u60c5\u3092\u898b\u305f\u8b1b\u5e2b\u306f\u4e00\u77ac\u5fae\u7b11\u307f\u306a\u304c\u3089\u3082\u3001\u77e2\u7d99\u304e\u65e9\u306b\u6b21\u306e\u3088\u3046\u306b\u5207\u308a\u51fa\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u300c\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u5358\u7d14\u8a08\u7b97\u3059\u308b\u3068<span>1<\/span>\u4eba\u306b<span>1IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3057\u304b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u51fa\u6765\u307e\u305b\u3093\u3088\u306d\uff1f\u3000\u4eca\u306e\u4e16\u306e\u4e2d\u30d1\u30bd\u30b3\u30f3\u3092\u8907\u6570\u53f0\u6301\u3063\u3066\u3044\u308b\u65b9\u3082\u591a\u304f\u3001\u7686\u3055\u3093\u306e\u73fe\u5834\u3092\u898b\u3066\u3082\u6570\u767e\u53f0\u3001\u6570\u5343\u53f0\u3002\u3042\u308b\u3044\u306f\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306b\u3082\u6ca2\u5c71\u306e\u30b5\u30fc\u30d0\u30fc\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u304c\u3042\u308a\u307e\u3059\u3088\u306d\uff1f\u3000\u3068\u3066\u3082\u3067\u306f\u306a\u3044\u3067\u3059\u304c<span>IPv4<\/span>\u306e\u4ed5\u7d44\u307f\u3067\u306f\u3001\u3082\u3046<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3092\u5341\u5206\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u51fa\u6765\u306a\u3044\u3093\u3067\u3059\u3088\uff01\u3000\u3053\u308c\u3092<span>IP<\/span>\u67af\u6e07\u554f\u984c\u3063\u3066\u8a00\u3046\u3093\u3067\u3059\u3002\u300d\u3068\u8aac\u660e\u3057\u305f\u3068\u3053\u308d\u3001\u5c11\u3057\u6b21\u306b\u8a71\u305d\u3046\u3068\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u3001\u4e00\u90e8\u306e\u53d7\u8b1b\u751f\u305f\u3061\u306f\u30d4\u30f3\u3068\u304d\u305f\u8868\u60c5\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u3053\u3067\u8b1b\u5e2b\u306f\u300c\u4eca\u304a\u8a71\u3057\u3057\u305f\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306e\u5bfe\u7b56\u3068\u3057\u3066\u8003\u3048\u3089\u308c\u305f\u3053\u3068\u3002\u305d\u308c\u304c<span>IPv6<\/span>\u306a\u3093\u3067\u3059\uff01\u300d\u3068\u529b\u3092\u8fbc\u3081\u3066\u8aac\u660e\u3092\u59cb\u3081\u307e\u3057\u305f\u3002\u300c\u305d\u306e\u8aac\u660e\u3092\u805e\u304d\u6f0f\u3089\u3059\u307e\u3044\uff01\u300d\u3068\u53d7\u8b1b\u751f\u305f\u3061\u3082\u5fc5\u6b7b\u306b\u30ce\u30fc\u30c8\u3092\u53d6\u308a\u59cb\u3081\u307e\u3057\u305f\u3002<\/p>\n<p>\u2461IPv6<br \/>\n1) \u6982\u8981<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u73fe\u5728\u4e3b\u6d41\u306e<span>IPv4<\/span>\u306b\u5909\u308f\u308b\u30d7\u30ed\u30c8\u30b3\u30eb<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u305d\u308c\u307e\u3067\u306e\u7d04<span>43<\/span>\u5104\u500b\u304b\u3089\u3001<span>340<\/span>\u6f97\u500b\u306e<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3092\u7528\u610f\u3067\u304d\u308b<br \/>\n2) \u7279\u5fb4<br \/>\n\u3000\u3000\u30fb<span>0<\/span>\uff5e<span>65535<\/span>\u307e\u3067<span>16<\/span>\u30d3\u30c3\u30c8\u30bb\u30b0\u30e1\u30f3\u30c8\u3092<span>8<\/span>\u3064\u5099\u3048\u3066\u3044\u308b<br \/>\n\u3000\u3000\u30fb<span>16<\/span>\u30d3\u30c3\u30c8\u00d7<span>8<\/span>\u30bb\u30b0\u30e1\u30f3\u30c8<span> = 128<\/span>\u30d3\u30c3\u30c8<strong>\u3000<br \/>\n<\/strong><strong>\u3000\u3000<\/strong>\u30fb<span>340,282,366,920,938,463,463,374,607,431,768,211,456<\/span>\u500b\uff08\u7d04<span>340<\/span>\u6f97\uff09\u901a\u308a\u306e\u30a2\u30c9\u30ec\u30b9\u3092<br \/>\n\u3000\u3000\u3000\u4f5c\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u3002\u3000\u203b\u7d04\uff13\uff14\uff10\u6f97\uff08\u304b\u3093\uff09\u500b\uff1d\u7d04<span>340<\/span>\u5146\u00d7<span>1<\/span>\u5146\u00d7<span>1<\/span>\u5146\u500b<br \/>\n3) \u30a2\u30c9\u30ec\u30b9\u7bc4\u56f2<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb<span>0.0.0.0.0.0.0.0 <\/span>\uff5e<span> ffff.ffff.ffff.ffff.ffff.ffff.ffff.ffff<\/span>\u3067\u6307\u5b9a\u3059\u308b\u3000<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u203b \uff11\uff16\u9032\u6570\u8868\u8a18\u3000\u3000<span>0 1 2 3 4 5 6 7 8 9 A B C D E F<br \/>\n<\/span>4) \u30a2\u30c9\u30ec\u30b9\u306e\u8868\u8a18\u4f8b<br \/>\n\u3000\u3000\u30fb\u4ee5\u4e0b\u306e\u3088\u3046\u306b\uff11\uff16\u9032\u6570\u3067\u8868\u8a18\u3059\u308b<br \/>\n\u3000\u3000\u3000<span>2001:0db8:0000:0000:0123:4567:89ab:cdef<br \/>\n<\/span>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a00\u3067\u59cb\u307e\u308b\u30d6\u30ed\u30c3\u30af\u306e0\u306f\u7701\u7565\u53ef\u3002\u4f46\u30570000\u306f\u5148\u982d\u306e0\u306f\u6b8b\u3057\u307e\u3059\u3002<br \/>\n<span><\/span>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a02001:0db8:0:0:0123:4567:89ab:cdef<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u30d6\u30ed\u30c3\u30af\u5168\u4f53\u304c0\u306e\u5834\u5408\u306f\u300c::\u300d\u3067\u4e00\u5ea6\u3060\u3051\u7701\u7565\u53ef\u80fd\u3067\u3059\u3002<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a02001:db8::123:4567:89ab:cdef<\/p>\n<p>IPv\uff14\u3068<span>IPv6<\/span>\u5404\u3005\u306e\u7279\u5fb4\u306b\u3064\u3044\u3066\u8b1b\u5e2b\u304c\u4e00\u901a\u308a\u8aac\u660e\u3092\u7d42\u308f\u308b\u3068\u3001\u53d7\u8b1b\u751f\u305f\u3061\u306f\u4f7f\u3063\u3066\u3044\u308b<span>IPv4<\/span>\u306e\u30a2\u30c9\u30ec\u30b9\u3002\u5b9f\u306f\u3053\u3093\u306a\u7279\u5fb4\u304c\u3042\u308b\u3093\u3060\uff01\u300d\u300c<span>IPv4<\/span>\u3063\u3066\u5b9f\u306f\u3082\u3046\u67af\u6e07\u3057\u304b\u3051\u3066\u3044\u308b\u3093\u3060\uff01\u300c\u6f97\u3068\u3044\u3046\u5024\u306f\u4eca\u56de\u521d\u3081\u3066\u805e\u3044\u305f\u304c\u3001<span>IPv6<\/span>\u306b\u5909\u308f\u308b\u3053\u3068\u3067\u3053\u308c\u3060\u3051\u6570\u306e\u4f59\u88d5\u304c\u751f\u307e\u308c\u308b\u3093\u3060\uff01\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u5b66\u3073\u3001\u9a5a\u304d\u306e\u8868\u60c5\u3092\u6d6e\u304b\u3079\u3066\u3044\u305f\u306e\u304c\u3068\u3066\u3082\u5370\u8c61\u7684\u3067\u3057\u305f\u3002<\/p>\n<h3><strong>\uff11-\uff13\uff0e<\/strong><strong>IP<\/strong><strong>\u30a2\u30c9\u30ec\u30b9\u306e\u904b\u7528\u65b9\u6cd5<\/strong><\/h3>\n<p>\u7d9a\u3051\u3066\u8b1b\u5e2b\u306f<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306e\u904b\u7528\u65b9\u6cd5\u306e\u8aac\u660e\u306b\u5165\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u2460IP\u30a2\u30c9\u30ec\u30b9\u306e\u8868\u8a18\u65b9\u6cd5<br \/>\n\u666e\u6bb5\u6211\u3005\u304c\u76ee\u306b\u3059\u308b\u6570\u5024\u3067\u8868\u8a18\u3055\u308c\u308b<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3002\u5b9f\u306f\uff12\u9032\u6570\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u304c\u3001\u305d\u308c\u3092\u898b\u3084\u3059\u304f\u3059\u308b\u305f\u3081<span>10<\/span>\u9032\u6570\u8868\u8a18\u3092\u4f7f\u3063\u3066\u304a\u308a\u3001\u305d\u306e\u8003\u3048\u65b9\u3092\u30de\u30b9\u30bf\u30fc\u3059\u308b\u4e0a\u3067\u300c\uff12\u9032\u6570\u306e\u8003\u3048\u65b9\u300d\u306f\u6b20\u304b\u3059\u3053\u3068\u304c\u51fa\u6765\u307e\u305b\u3093\u3002\u8b1b\u5e2b\u3082\u300c\u5927\u4e8b\u306a\u30dd\u30a4\u30f3\u30c8\u300d\u3068\u3044\u3046\u3053\u3068\u3067\u7279\u306b\u58f0\u3092\u5927\u306b\u3057\u3066\u53d7\u8b1b\u751f\u305f\u3061\u306b\u8aac\u660e\u3057\u3066\u304a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso17.png\" alt=\"\" width=\"452\" height=\"165\" class=\"size-full wp-image-2247 aligncenter\" \/><\/p>\n<p>\u7d9a\u3051\u3066<span>8<\/span>\u30d3\u30c3\u30c8\u3054\u3068\u306e\u584a\u304c\uff14\u3064\u3042\u308b\u3053\u3068\u304c\u7279\u5fb4\u3067\u3001\u305d\u306e\u584a\u3092\u300c\u30aa\u30af\u30c6\u30c3\u30c8\u300d\u3068\u3044\u3046\u8aac\u660e\u3092\u884c\u3063\u305f\u5f8c\u3001\u7d9a\u3051\u3066\u5de6\u304b\u3089\u300c\u7b2c\u4e00\u30aa\u30af\u30c6\u30c3\u30c8\u3001\u7b2c\u4e8c\u30aa\u30af\u30c6\u30c3\u30c8\u3001\u7b2c\u4e09\u30aa\u30af\u30c6\u30c3\u30c8\u3001\u7b2c\u56db\u30aa\u30af\u30c6\u30c3\u30c8\u3068\u547c\u3076\u306e\u3067\u6c17\u3092\u4ed8\u3051\u3066\u4e0b\u3055\u3044\uff01\u300d\u3068\u547c\u3073\u304b\u3051\u308b\u3068\u3001\u53d7\u8b1b\u751f\u305f\u3061\u5168\u54e1\u7d0d\u5f97\u3044\u3063\u305f\u69d8\u5b50\u3067\u3001\u9837\u304d\u306a\u304c\u3089\u30ce\u30fc\u30c8\u3092\u3068\u3063\u3066\u304a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso18.png\" alt=\"\" width=\"388\" height=\"91\" class=\"size-full wp-image-2248 aligncenter\" \/><strong>\u203b\u5de6\u304b\u3089\u9806\u306b\u7b2c<span>1<\/span>\u30aa\u30af\u30c6\u30c3\u30c8\u3001\u7b2c<span>2<\/span>\u30aa\u30af\u30c6\u30c3\u30c8\u3001\u7b2c<span>3<\/span>\u30aa\u30af\u30c6\u30c3\u30c8\u3001\u7b2c<span>4<\/span>\u30aa\u30af\u30c6\u30c3\u30c8\u3068\u3044\u3044\u307e\u3059\u3002<\/strong><\/p>\n<p>\u2461IP\u30a2\u30c9\u30ec\u30b9\u306e\u8868\u8a18\u65b9\u6cd5<br \/>\n\u6b21\u306b\u8b1b\u5e2b\u306f\uff12\u9032\u6570\u3068\uff11\uff10\u9032\u6570\u306e\u5909\u63db\u306b\u3064\u3044\u3066\u306e\u8aac\u660e\u306b\u5165\u308d\u3046\u3068\u3057\u3066\u304a\u308a\u307e\u3059\u3002\u8b1b\u5e2b\u5074\u3082\u300c\u3053\u3053\u304c\u53d7\u8b1b\u751f\u306b\u3068\u3063\u3066\u4e00\u756a\u8e93\u304f\u30dd\u30a4\u30f3\u30c8\u3067\u3042\u308b\uff01\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u904e\u53bb\u306e\u8b1b\u5e2b\u7d4c\u9a13\u304b\u3089\u5f37\u3044\u8a8d\u8b58\u3092\u6301\u3063\u3066\u304a\u308a\u3001\uff12\u9032\u6570\u306e\u7279\u5fb4\u3092\u300c\u5bfe\u6bd4\u8868\u300d\u3092\u7528\u3044\u306a\u304c\u3089\u8aac\u660e\u3092\u59cb\u3081\u307e\u3057\u305f\u3002<\/p>\n<p>\u25a0\uff12\u9032\u6570\u306e\u7279\u5fb4\u25a0<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u3000\uff62<span>0<\/span>\u300d\u3068\u300c<span>1<\/span>\u300d\u306e<span>2<\/span>\u7a2e\u985e\u306e\u6570\u5b57\u3092\u7528\u3044\u3066\u5168\u3066\u306e\u6570\u3092\u8868\u73fe\u3059\u308b\u3002<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u3000<span>10<\/span>\u9032\u6570\u3067\u306f\u300c<span>0<\/span>\u300d\u304b\u3089\u6570\u3048\u3066\u300c<span>9<\/span>\u300d\u306e\u6b21\u306f\u4f4d\u304c\u3042\u304c\u308b\u304c\u3001<span>2<\/span>\u9032\u6570\u3067\u306f\u300c<span>1<\/span>\u300d\u306e\u6b21\u306b\u4f4d\u304c\u3042\u304c\u308b\u3002\u00a0 \u00a0<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u3000\uff12\u9032\u6570\u306e\u5834\u5408\u3001\u4f4d\u304c\u3042\u304c\u308c\u3070\u3001\u305d\u306e\u65b0\u3057\u3044\u6841\u306f\uff62<span>1<\/span>\uff63 \u3068\u306a\u308a\u3001\u305d\u308c\u4ee5\u4e0b\u306e\u6841\u306f\u5168\u3066 \u300c<span>0<\/span>\u300d \u3068\u306a\u308b\u3002<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u3000\uff12\u9032\u6570\u306e\u6570\u306e\u5897\u3048\u65b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso19.png\" alt=\"\" width=\"452\" height=\"62\" class=\"size-full wp-image-2249 aligncenter\" \/><\/p>\n<p>\u66f4\u306b<span>10<\/span>\u9032\u6570\u306e\u300c\uff11\u304b\u3089<span>10<\/span>\u300d\u3068\u3001\uff12\u9032\u6570\u306e\u300c<span>1<\/span>\u304b\u3089<span>10<\/span>\u300d\u306e\u6570\u3048\u65b9\u3092\u4ee5\u4e0b\u306e\u8868\u3092\u7528\u3044\u308b\u5de5\u592b\u3067\u8aac\u660e\u3092\u3057\u3066\u304a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso20.png\" alt=\"\" width=\"458\" height=\"172\" class=\"size-full wp-image-2250 aligncenter\" \/><\/p>\n<p>\u5c11\u3057\u305a\u3064\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u53d7\u8b1b\u751f\u305f\u3061\u3082\uff12\u9032\u6570\u3068\uff11\uff10\u9032\u6570\u306e\u5909\u63db\u306e\u8003\u3048\u65b9\u3092\u63b4\u307f\u3064\u3064\u3042\u308b\u3088\u3046\u3067\u3059\u304c\u3001\u307e\u3060\u534a\u4fe1\u534a\u7591\u306a\u8868\u60c5\u3002\u305d\u3053\u3067\u8b1b\u5e2b\u306f\u6b21\u306b\u3001\u5b9f\u969b\u306e\uff12\u9032\u6570\u8868\u8a18\u306e\u6570\u5024\u3092\u7528\u610f\u3057\u3001<span>10<\/span>\u9032\u6570\u306b\u5909\u63db\u3059\u308b\u8aac\u660e\u3092\u59cb\u3081\u307e\u3057\u305f\u3002\u30dd\u30a4\u30f3\u30c8\u306f\u300c\uff12\u9032\u6570\u3068\u306f\u201c\uff12\u306e\u4e57\u6570\u201d\u6bce\u306b\u5909\u5316\u3057\u3066\u3044\u304f\u3053\u3068\u300d\u305d\u3057\u3066\u300c\u3069\u306e\u4f4d\u7f6e\u306b\u30d3\u30c3\u30c8\u304c\u7acb\u3064\u3053\u3068\u3067<span>10<\/span>\u9032\u6570\u306e\u4f55\u306e\u5024\u306b\u306a\u308b\u304b\uff1f\u300d\u306e\u57fa\u6e96\u5024\u304c\u3042\u308b\u3053\u3068\u3092\u4ea4\u3048\u306a\u304c\u3089\u3001\u5b9f\u969b\u306e\u554f\u984c\u3068\u89e3\u304d\u306a\u304c\u3089\u89e3\u8aac\u3092\u52a0\u3048\u307e\u3057\u305f\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso21.png\" alt=\"\" width=\"457\" height=\"117\" class=\"size-full wp-image-2251 aligncenter\" \/><\/p>\n<p>\uff12\u9032\u6570\u300c<span>00101010<\/span>\u300d\u306e\u5834\u5408\u3001\u300c<span>32<\/span>\u3001\u3000<span>8<\/span>\u3001\u3000<span>2<\/span>\u300d\u306e\u3068\u3053\u308d\u306b\u30d3\u30c3\u30c8\u304c\u7acb\u3063\u3066\u304a\u308a\u3001\u3053\u308c\u3089\u3092\u5408\u7b97\u3059\u308b\u3068\u300c<span>10<\/span>\u9032\u6570\u306e<span>42<\/span>\u3068\u306a\u308b\u300d\u3068\u3044\u3046\u8aac\u660e\u3092\u884c\u3063\u305f\u3068\u3053\u308d\u3001\u5148\u307b\u3069\u307e\u3067\u300c\u534a\u4fe1\u534a\u7591\u300d\u3060\u3063\u305f\u53d7\u8b1b\u751f\u305f\u3061\u3082\u3001\u5927\u5206\u8151\u306b\u843d\u3061\u305f\u8868\u60c5\u306b\u5909\u308f\u308a\u59cb\u3081\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u8b1b\u5e2b\u306f\u9593\u9aea\u5165\u308c\u305a\u300c\u3053\u3053\u307e\u3067\u3067\u5b66\u3093\u3060\u3053\u3068\u306e\u518d\u78ba\u8a8d\u3068\u3057\u3066\u6b21\u306e\u4f8b\u984c\u3092\u89e3\u304d\u307e\u3057\u3087\u3046\uff01\u300d\u3068\u53d7\u8b1b\u751f\u5168\u54e1\u306b\u547c\u3073\u304b\u3051\u307e\u3057\u305f\u3002\u3000\u7b2c<span>1<\/span>\u56de\u76ee\u306e\u8b1b\u5ea7\u306b\u304a\u3044\u3066\u300c\u4e00\u65b9\u7684\u306b\u8aac\u660e\u3092\u8074\u304f\u3060\u3051\u3067\u306a\u304f\u3001\u79c1\u306e\u8b1b\u5ea7\u306f\u6307\u540d\u3057\u306a\u304c\u3089\u9032\u3081\u307e\u3059\uff01\u300d\u3068\u3044\u3046\u8a00\u8449\u306e\u8aac\u660e\u3092\u53d7\u3051\u305f\u53d7\u8b1b\u751f\u305f\u3061\u306f\u3001\u300c\u3044\u3064\u6307\u540d\u3055\u308c\u308b\u3093\u3060\u308d\u3046\u304b\u30fb\u30fb\uff1f\u300d\u3068\u3044\u3046\u4e0d\u5b89\u306a\u8868\u60c5\u306b\u306a\u308a\u3064\u3064\u3082\u3001\uff13\u5206\u7a0b\u5ea6\u3067\u8b1b\u5e2b\u306e\u4e0e\u3048\u305f\u4ee5\u4e0b\u306e\u554f\u984c\u3092\u89e3\u304d\u59cb\u3081\u307e\u3057\u305f\u3002<\/p>\n<p>\u300a\u554f\u984c\uff11\u300b <span>IPv4<\/span>\u306f\u4f55\u30aa\u30af\u30c6\u30c3\u30c8\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u304b\uff1f<br \/>\n\u300a\u554f\u984c<span>2<\/span>\u300b<span> IPv4<\/span>\u3067\u306f<span>1<\/span>\u30aa\u30af\u30c6\u30c3\u30c8\u306f\u4f55\u30d3\u30c3\u30c8\u3042\u308a\u307e\u3059\u304b\uff1f<br \/>\n\u300a\u554f\u984c<span>3<\/span>\u300b<span> 2<\/span>\u9032\u6570\u306e\u300c<span>01000101<\/span>\u300d\u3092<span>10<\/span>\u9032\u6570\u306b\u3059\u308b\u3068\uff1f<br \/>\n\u300a\u554f\u984c<span>4<\/span>\u300b<span> 2<\/span>\u9032\u6570\u306e\u300c<span>10101011<\/span>\u300d\u3092<span>10<\/span>\u9032\u6570\u306b\u3059\u308b\u3068\uff1f<\/p>\n<p>\uff13\u5206\u5f8c<span>4<\/span>\u540d\u306e\u53d7\u8b1b\u751f\u3092\u6307\u540d\u3057\u56de\u7b54\u3092\u3057\u3066\u8cb0\u3044\u307e\u3057\u305f\u304c\u5168\u54e1\u6b63\u89e3\u3002\u81ea\u5206\u305f\u3061\u3067\u30ce\u30fc\u30c8\u3057\u305f\u4e8b\u3001\u30e1\u30e2\u3057\u305f\u4e8b\u3092\u57fa\u306b\u554f\u984c\u3092\u89e3\u304d\u300c\u6b63\u89e3\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u305f\u300d\u3053\u3068\u3067\u81ea\u4fe1\u3092\u6df1\u3081\u3066\u3044\u308b\u8868\u60c5\u304c\u3068\u3066\u3082\u5370\u8c61\u7684\u3067\u3057\u305f\u3002<\/p>\n<p>\u2462\u30a2\u30c9\u30ec\u30b9\u30af\u30e9\u30b9<br \/>\n\u3053\u3053\u307e\u3067\u306e\u8aac\u660e\u3060\u3051\u3067\u65e2\u306b\u304a\u8179\u3044\u3063\u3071\u3044\u6c17\u5473\u306e\u53d7\u8b1b\u751f\u305f\u3061\u3002\u305f\u3060\u3057\u307e\u3060\u307e\u3060\u5927\u4e8b\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u7d9a\u304d\u307e\u3059\u3002IP\u30a2\u30c9\u30ec\u30b9\u306b\u306f\u30a2\u30c9\u30ec\u30b9\u30af\u30e9\u30b9\u3068\u3044\u3046\u8003\u3048\u65b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso22-550x79.png\" alt=\"\" width=\"550\" height=\"79\" class=\"size-medium wp-image-2252 aligncenter\" \/><\/p>\n<p>\u8a00\u8449\u3060\u3051\u306e\u8aac\u660e\u3067\u306f\u300c\u4f55\u306e\u3053\u3068\u304b\uff1f\u300d\u3068\u6238\u60d1\u3044\u3092\u6d6e\u304b\u3079\u308b\u53d7\u8b1b\u751f\u305f\u3061\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso23.png\" alt=\"\" width=\"521\" height=\"113\" class=\"size-full wp-image-2253 aligncenter\" \/><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso24.png\" alt=\"\" width=\"513\" height=\"76\" class=\"size-full wp-image-2254 aligncenter\" \/><\/p>\n<p>IP\u30a2\u30c9\u30ec\u30b9\u306b\u306f\u300c\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u6240\u5c5e\u3059\u308b\u304b\uff1f\u300d\u3092\u793a\u3059\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u90e8\u3068\u3001\u300c\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3078\u5272\u308a\u5f53\u3066\u308b\u30a2\u30c9\u30ec\u30b9\u300d\u3092\u793a\u3059\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u90e8\u306e\uff12\u3064\u3067\u69cb\u6210\u3055\u308c\u308b\u3053\u3068\u3092\u4e0a\u8a18\u306e\u8cc7\u6599\u3092\u4f7f\u3063\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002\u8003\u3048\u65b9\u306f\u7406\u89e3\u3057\u3064\u3064\u3082\u3001\u6b21\u306e\u53d7\u8b1b\u751f\u306e\u7591\u554f\u306f\u300c\u30af\u30e9\u30b9<span>C<\/span>\u3063\u3066\u4f55\u306a\u306e\uff1f\u300d\u3002\u3000\u305d\u306e\u7591\u554f\u306f\u8b1b\u5e2b\u5074\u3082\u4e88\u6e2c\u3092\u3057\u3066\u304a\u308a\u3001\u8cc7\u6599\u3092\u7528\u3044\u306a\u304c\u3089\u53d7\u8b1b\u751f\u305f\u3061\u306b\u8a9e\u308a\u59cb\u3081\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso25-550x203.png\" alt=\"\" width=\"550\" height=\"203\" class=\"size-medium wp-image-2255 aligncenter\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u30fb<span>IPv4<\/span>\u306b\u306f\u30af\u30e9\u30b9<span>A<\/span>\u304b\u3089\u30af\u30e9\u30b9<span>E<\/span>\u306e\uff15\u3064\u304c\u3042\u308b\u3002\u3000\u203b\u901a\u5e38\u6211\u3005\u306f\u30af\u30e9\u30b9<span>A<\/span>\u304b\u3089\u30af\u30e9\u30b9<span>C<\/span>\u307e\u3067\u3092\u5229\u7528<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u898f\u6a21\u306b\u5fdc\u3058\u3066\u30af\u30e9\u30b9\u306f\u5909\u308f\u308a\u3001\u305d\u306e\u7bc4\u56f2\u306f<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306e\u5024\u306b\u3088\u3063\u3066\u6c7a\u307e\u308b<\/p>\n<p>\u66f4\u306b\u6b21\u306e\u8cc7\u6599\u3092\u4f7f\u3044\u8aac\u660e\u3092\u7d9a\u3051\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso26.png\" alt=\"\" width=\"526\" height=\"199\" class=\"size-full wp-image-2256 aligncenter\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u30fb\uff14\u3064\u3042\u308b\u30aa\u30af\u30c6\u30c3\u30c8\u306e\u5185\u306e\u3069\u306e\u90e8\u5206\u307e\u3067\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3067\u3001\u3069\u306e\u90e8\u5206\u304c\u30db\u30b9\u30c8\u90e8\u3067\u3042\u308b\u304b\u304c\u30af\u30e9\u30b9\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u00a0 \u00a0<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u30af\u30e9\u30b9<span>A<\/span>\u306f\u7b2c\u4e00\u30aa\u30af\u30c6\u30c3\u30c8\u307e\u3067\u3002\u30af\u30e9\u30b9<span>B<\/span>\u306f\u7b2c\u4e8c\u30aa\u30af\u30c6\u30c3\u30c8\u307e\u3067\u3002\u30af\u30e9\u30b9<span>C<\/span>\u306f\u7b2c\u4e09\u30aa\u30af\u30c6\u30c3\u30c8\u307e\u3067\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u3069\u306e\u90e8\u5206\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3067\u3042\u308b\u304b\u3092\u793a\u3059\u306e\u304c\u300c<span>11111111<\/span>\u300d\u306e\u5024\u3002\u3053\u308c\u3092\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3068\u3044\u3046<\/p>\n<p>\u305d\u3057\u3066\u66f4\u306b\u30c0\u30e1\u62bc\u3057\u3067\u3001\u30af\u30e9\u30b9<span>A<\/span>\u304b\u3089\u30af\u30e9\u30b9<span>C<\/span>\u306b\u306f\u3069\u306e\u3088\u3046\u306a\u9055\u3044\u304c\u3042\u308b\u304b\u3092\u8b1b\u5e2b\u306f\u8aac\u660e\u3057\u59cb\u3081\u307e\u3059\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u30fb \u30af\u30e9\u30b9<span>A<\/span>\u2192\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fb\u30a2\u30c9\u30ec\u30b9\u3068\u3057\u3066\u3001\u300c<span>0<\/span>\uff5e<span>127<\/span>\u300d\u307e\u3067\u306e \u5168\u90e8\u3067<span>128<\/span>\u500b\u304c\u5229\u7528\u3067\u304d\u3001\u305d\u308c\u305e\u308c\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306b\u306f\u6700\u5927\u3067\u7d04<span>1600<\/span>\u4e07\u53f0\uff08<span>0.0.0<\/span>\uff5e<span>255.255.255<\/span>\uff09\u306e\u30db\u30b9\u30c8\u3092\u53ce\u5bb9\u53ef\u80fd<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb \u30af\u30e9\u30b9<span>B<\/span>\u2192\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fb\u30a2\u30c9\u30ec\u30b9\u3068\u3057\u3066\u3001\u300c<span>128.0<\/span>\uff5e<span>191.255<\/span>\u300d\u307e\u3067\u306e \u5168\u90e8\u3067<span>16384<\/span>\u500b\u304c\u5229\u7528\u3067\u304d\u3001\u305d\u308c\u305e\u308c\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306b\u306f\u6700\u5927\u3067\u7d04<span>65000<\/span>\u4e07\u53f0\uff08<span>0.0.<\/span>\uff5e<span>255.255<\/span>\uff09\u306e\u30db\u30b9\u30c8\u3092\u53ce\u5bb9\u53ef\u80fd<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb \u30af\u30e9\u30b9<span>C<\/span>\u2192\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fb\u30a2\u30c9\u30ec\u30b9\u3068\u3057\u3066\u3001\u300c<span>192.0.0<\/span>\uff5e<span>223.255.255<\/span>\u300d\u307e\u3067\u306e \u5168\u90e8\u3067\u7d04<span>216<\/span>\u4e07\u500b\u304c\u5229\u7528\u3067\u304d\u3001\u305d\u308c\u305e\u308c\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306b\u306f\u6700\u5927\u3067<span>254<\/span>\u53f0\uff08<span>0<\/span>\uff5e<span>255<\/span>\uff09\u306e\u30db\u30b9\u30c8\u3092\u53ce\u5bb9\u53ef\u80fd<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso27.png\" alt=\"\" width=\"518\" height=\"110\" class=\"size-full wp-image-2257 aligncenter\" \/><\/p>\n<p>\uff08\u4f8b\uff09\u3000<span>192.168.75.201\u00a0\u00a0 <br \/>\n<strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong>\u00a0(<\/span>\u6700\u521d\u306e<span>192.168.75<\/span>\u304c\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fb\u30a2\u30c9\u30ec\u30b9\u90e8\u300d\u3068\u306a\u308a\u3001\u6b8b\u308a\u306e<span>201<\/span>\u304c\u300c\u30db\u30b9\u30c8\u30fb\u30a2\u30c9\u30ec\u30b9\u90e8\u300d\u3068\u306a\u308a\u307e\u3059\uff09<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u8868\u8a18<span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>\uff1d<span> 255.255.255.0<br \/>\n<\/span>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\uff08<span>CIDR)<\/span>\u8868\u8a18 \uff1d<span> \/24<\/span><\/p>\n<p>\u6982\u5ff5\u56f3\u3092\u7528\u3044\u305f\u8aac\u660e\u306b\u53d7\u8b1b\u751f\u305f\u3061\u306f\u3001\u666e\u6bb5\u4f7f\u3063\u3066\u3044\u308b<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u304c\u5b9f\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u30af\u30e9\u30b9\u3068\u3044\u3046\u6982\u5ff5\u3067\u4f53\u7cfb\u3065\u3051\u3089\u308c\u3066\u3044\u308b\u4e8b\u3092\u77e5\u308b\u3053\u3068\u304c\u51fa\u6765\u3001\u7686\u7d0d\u5f97\u3057\u305f\u8868\u60c5\u3092\u3057\u3066\u304a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u2463\u30a2\u30c9\u30ec\u30b9\u306e\u7a2e\u985e<br \/>\nIP\u30a2\u30c9\u30ec\u30b9\u306b\u306f\u30af\u30e9\u30b9\u306e\u8003\u3048\u65b9\u3068\u306f\u5225\u306b\u3001\u300c\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u4f7f\u3046\u306e\u304b\uff1f\u300d\u3068\u3044\u3046\u3053\u3068\u3067\uff12\u7a2e\u985e\u306b\u5206\u304b\u308c\u307e\u3059\u3002\u305d\u3053\u3067\u8b1b\u5e2b\u306f\u4ee5\u4e0b\u306e\u56f3\u3092\u4f7f\u3044\u306a\u304c\u3089\u6b21\u306e\u3088\u3046\u306b\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso28.png\" alt=\"\" width=\"462\" height=\"225\" class=\"size-full wp-image-2258 aligncenter\" \/><\/p>\n<p>1) \u30b0\u30ed\u30fc\u30d0\u30eb<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u30fb\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff08<span>WAN<\/span>\uff09\u306b\u63a5\u7d9a\u3055\u308c\u305f\u6a5f\u5668\u306b\u4e00\u610f\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9<br \/>\n\u3000\u3000\u30fb\u56fa\u6709\u306e\u3082\u306e\u3067\u3042\u308a\u4e16\u754c\u4e2d\u3067\u91cd\u8907\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u5f97\u306a\u3044\uff01<br \/>\n\u3000\u3000\u30fb\u30af\u30e9\u30b9<span>A<\/span>\u304b\u3089\u30af\u30e9\u30b9<span>C<\/span>\u305d\u308c\u305e\u308c\u306b\u304a\u3051\u308b\u7bc4\u56f2\u306f\u6b21\u306e\u901a\u308a<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso29.png\" alt=\"\" width=\"422\" height=\"151\" class=\"size-full wp-image-2259 aligncenter\" \/><\/p>\n<p>\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u7279\u5fb4\u306b\u3064\u3044\u3066\u306e\u8aac\u660e\u3092\u52a0\u3048\u306a\u304c\u3089\u3001\u8b1b\u5e2b\u306f\u6b21\u306e\u8cea\u554f\u3092\u53d7\u8b1b\u751f\u306b\u6295\u3052\u304b\u3051\u307e\u3059\u3002\u300c\u30af\u30e9\u30b9<span>A<\/span>\u304b\u3089\u30af\u30e9\u30b9<span>C<\/span>\u306e\u7bc4\u56f2\u306f\u5148\u7a0b\u7d39\u4ecb\u3057\u307e\u3057\u305f\u304c\u3001\u4f55\u6545\u3053\u306e\u8868\u3067\u308f\u3056\u308f\u3056\uff12\u884c\u306b\u5206\u3051\u3066\u3044\u308b\u3093\u3067\u3057\u3087\u3046\u306d\uff1f\u4e00\u77ac\u9996\u3092\u304b\u3057\u3052\u308b\u53d7\u8b1b\u751f\u306e\u69d8\u5b50\u3092\u898b\u306a\u304c\u3089\u7d9a\u3051\u3066\u8b1b\u5e2b\u306f\u3053\u306e\u3088\u3046\u306b\u8aac\u660e\u3092\u3057\u307e\u3059\u3002\u5b9f\u306f\u300c\u30af\u30e9\u30b9<span>A<\/span>\u304b\u3089\u30af\u30e9\u30b9<span>C<\/span>\u305d\u308c\u305e\u308c\u306b\u5bfe\u3057\u3066\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306e\u7bc4\u56f2\u304c\u7528\u610f\u3055\u308c\u3066\u304a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\uff12\u884c\u306b\u5206\u3051\u3066\u3044\u308b\u3093\u3067\u3059\u3002\u304a\u6c17\u3065\u304d\u306b\u306a\u308a\u307e\u3057\u305f\u304b\uff1f\u300d<\/p>\n<p>2) \u30d7\u30e9\u30a4\u30d9\u30fc\u30c8<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9<br \/>\n\u3000\u3000\u30fb\u4f1a\u793e\u3084\u5bb6\u5ead\u306a\u3069\u306e\u7d44\u7e54\u5185\uff08<span>LAN<\/span>\u5185\uff09\u3067\u4e00\u610f\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9<br \/>\n\u3000\u3000\u30fb\u7bc4\u56f2\u5185\u3067\u3042\u308c\u3070\u81ea\u7531\u306b\u4f7f\u7528\u3059\u308b\u4e8b\u304c\u51fa\u6765\u308b<br \/>\n\u3000\u3000\u30fb\u30af\u30e9\u30b9<span>A<\/span>\u304b\u3089<span>C<\/span>\u305d\u308c\u305e\u308c\u306b\u3001\u4f7f\u7528\u3092\u3057\u3066\u3082\u826f\u3044\u30a2\u30c9\u30ec\u30b9\u306e\u7bc4\u56f2\u304c\u6c7a\u3081\u3089\u308c\u3066\u3044\u308b\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u30af\u30e9\u30b9<span>A<\/span>\u3000<span>10.0.0.0<\/span>\uff5e<span>10.255.255.255<\/span>\u3000\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5411\u3051<br \/>\n\u3000\u3000\u21d2<span>10.0.0.0\/8 <\/span>\u306e\uff11\u3064\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u7d04<span>1677<\/span>\u4e07\u500b\u306e\u30db\u30b9\u30c8\u304c\u63a5\u7d9a\u53ef\u80fd<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u30af\u30e9\u30b9<span>B<\/span>\u3000<span>172.16.0.0<\/span>\uff5e<span>172. 31.255.255<\/span>\u3000\u4e2d\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5411\u3051<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u21d2<span>172.16.0.0\/16<\/span>\uff5e<span>172.31.255.255\/16 <\/span>\u306e<span>16<\/span>\u500b\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff11\u3064\u3042\u305f\u308a\u306b\u7d04<span>6<\/span>\u4e07<span>5000<\/span>\u500b\u306e\u30db\u30b9\u30c8\u304c\u63a5\u7d9a\u53ef\u80fd<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u30af\u30e9\u30b9<span>C<\/span>\u3000<span>192.168.0.0<\/span>\uff5e<span>192.168.255.255<\/span>\u3000\u5c0f\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5411\u3051<br \/>\n\u00a0 \u00a0 \u00a0 \u00a0\u21d2<span>192.168.0.0\/24<\/span>\uff5e<span>192.168.255.0\/24 <\/span>\u306e<span>256<\/span>\u500b\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff11\u3064\u3042\u305f\u308a\u306b<span>254<\/span>\u500b\u306e\u30db\u30b9\u30c8\u304c\u63a5\u7d9a\u53ef\u80fd<\/p>\n<p>\u76ee\u304b\u3089\u9c57\u304c\u843d\u3061\u305f\u3088\u3046\u306a\u53d7\u8b1b\u751f\u305f\u3061\u3002\u4eca\u307e\u3067\u4f55\u3052\u306b\u4f7f\u3063\u3066\u3044\u305f<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3002\u5b9f\u306f\u3001\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3063\u3066\u7bc4\u56f2\u306b\u3088\u3063\u3066\u30af\u30e9\u30b9\u304c\u7570\u306a\u308b\uff01\u300d\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3068\u3044\u3046\u8a00\u8449\u306f\u77e5\u3063\u3066\u3044\u305f\u304c\u3001\u3069\u306e\u3088\u3046\u306a\u610f\u5473\u5408\u3044\u304c\u3042\u308b\u304b\uff1f\u300d\u300c\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9\u3068\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u305d\u308c\u305e\u308c\u306b\u7bc4\u56f2\u304c\u6c7a\u307e\u3063\u3066\u3044\u305f\u3093\u3060\uff01\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u77e5\u308b\u3053\u3068\u304c\u51fa\u6765\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u5168\u54e1\u9a5a\u304d\u3068\u540c\u6642\u306b\u6e80\u8db3\u3052\u306a\u8868\u60c5\u3068\u306a\u3063\u3066\u304a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h3><strong>\uff11-\uff14\uff0e<\/strong><strong>IP<\/strong><strong>\u30a2\u30c9\u30ec\u30b9\u306e\u4f7f\u3044\u65b9<\/strong><\/h3>\n<p><strong>\u00a0<\/strong>\u65e2\u306b\u3053\u3053\u307e\u3067\u306e\u8aac\u660e\u3067\u53d7\u8b1b\u751f\u305f\u3061\u306f\u305f\u304f\u3055\u3093\u306e\u4e8b\u3092\u5b66\u3073\u307e\u3057\u305f\u304c\u3001\u3044\u3088\u3044\u3088\u7b2c\uff12\u56de\u76ee\u6700\u5f8c\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3001\u304b\u3064\u3001\u3082\u3063\u3068\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308b\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u3059\u3002\u7279\u306b\u300c<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u5206\u5272\u300d\u306b\u3064\u3044\u3066\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5b66\u3076\u4e0a\u3067\u521d\u5fc3\u8005\u304c\u3082\u3063\u3068\u3082\u82e6\u624b\u3068\u3059\u308b\u90e8\u5206\u3002\u767e\u6226\u932c\u78e8\u306e\u8b1b\u5e2b\u3082\u3001\u4f55\u5ea6\u3068\u306a\u304f\u3001\u8aac\u660e\u3059\u308b\u4e8b\u3078\u306e\u96e3\u3057\u3055\u3092\u75db\u611f\u3055\u305b\u3089\u308c\u3066\u3044\u308b\u5358\u5143\u3002\u305d\u308c\u3060\u3051\u306b\u53d7\u8b1b\u751f\u306e\u610f\u6c17\u8fbc\u307f\u3082\u3055\u308b\u3053\u3068\u306a\u304c\u3089\u3001\u8b1b\u5e2b\u5074\u3082\u300c\u4f55\u3068\u304b\u30b5\u30d6\u30cd\u30c3\u30c8\u5206\u5272\u306e\u8003\u3048\u65b9\u3092\u6301\u3061\u8fd4\u3063\u3066\u3082\u3089\u304a\u3046\uff01\u300d\u3068\u3044\u3046\u5f37\u3044\u610f\u6c17\u8fbc\u307f\u3067\u6700\u5f8c\u306e\u8aac\u660e\u306b\u5165\u308b\u306e\u3067\u3057\u305f\u3002<\/p>\n<p>\u2460\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9<br \/>\n\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3068\u30db\u30b9\u30c8\u90e8\u306e\u8aac\u660e\u3092\u65e2\u306b\u3053\u3053\u307e\u3067\u306e\u8b1b\u7fa9\u3067\u8aac\u660e\u3092\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u30db\u30b9\u30c8\u90e8\u306b\u5b58\u5728\u3059\u308b\u30a2\u30c9\u30ec\u30b9\u306b\u304a\u3044\u3066\uff12\u3064\u3060\u3051\u3001\u300c\u30db\u30b9\u30c8\u300d\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u51fa\u6765\u306a\u3044<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u307e\u3067\u8aac\u660e\u3092\u3057\u305f\u5f8c\u7d9a\u3051\u3066\u8b1b\u5e2b\u306f\u3053\u308c\u3089\uff12\u3064\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u3064\u3044\u3066\u306e\u8aac\u660e\u3092\u59cb\u3081\u307e\u3057\u305f\u3002<\/p>\n<p>1) \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9 \u2192\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u81ea\u4f53\u3092\u793a\u3059<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9<br \/>\n2) \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3000\u2192\u305d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u3059\u3079\u3066\u306e\u30db\u30b9\u30c8\u306b\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u305f\u3081\u306b\u4f7f\u3046<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9<\/p>\n<p>\u2461IP\u30a2\u30c9\u30ec\u30b9\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u5206\u5272\u5316<br \/>\n\u3044\u3088\u3044\u3088\u6700\u5f8c\u306e\u95a2\u9580\u3067\u3059\u3002\u3044\u304d\u306a\u308a\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u5206\u5272\u300d\u306e\u8aac\u660e\u304b\u3089\u5165\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u554f\u984c\u63d0\u8d77\u3092\u53d7\u8b1b\u751f\u305f\u3061\u306b\u6295\u3052\u304b\u3051\u307e\u3059\u3002<\/p>\n<p>1)\u3042\u306a\u305f\u306f\u3001\u793e\u5185\u306e\u3042\u308b\u90e8\u7f72\uff15\uff10\u4eba\u3078<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u306b\u306a\u3063\u305f\u3002<br \/>\n2)\u305d\u306e\u90e8\u7f72\u3092\u542b\u3081\u3001\u4f01\u696d\u5185\u3067\u300c<span>192.168.1.0\/24<\/span>\uff08<span>192.168.1.0 255.255.255.0)<\/span>\u300d\u3068\u3044\u3046\u30a2\u30c9\u30ec\u30b9\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u4f7f\u3063\u3066\u5272\u308a\u5f53\u3066\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<br \/>\n3)\u3053\u306e\u5834\u5408\u52b9\u7387\u3088\u304f\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u308b\u306b\u306f\u3001\u3069\u306e\u3088\u3046\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5206\u5272\u3059\u308c\u3070\u3088\u3044\u304b\u3002<\/p>\n<p>\u3053\u3053\u3067\u8b1b\u5e2b\u306f\u6b21\u306e\u3088\u3046\u306b\u8aac\u660e\u3092\u7d9a\u3051\u307e\u3059\u3002\u300c\u3053\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u30af\u30e9\u30b9<span>C<\/span>\u3067\u3042\u308b\u3053\u3068\u306f\u3054\u5b58\u77e5\u306e\u306f\u305a\u3002\u30af\u30e9\u30b9<span>C<\/span>\u306e\u5834\u5408\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067<span>254<\/span>\u53f0\u5206<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u30db\u30b9\u30c8\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u3002 \u3057\u304b\u3057\u4eca\u56de\u3053\u306e\u90e8\u7f72\u306b\u306f50\u4eba\u3057\u304b\u3044\u306a\u3044\u3002\u3053\u306e\u3088\u3046\u306a\u90e8\u7f72\u306b<span>254<\/span>\u53f0\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u672c\u5f53\u306b\u5fc5\u8981\u3067\u3057\u3087\u3046\u304b\uff1f <span>50<\/span>\u53f0\u5272\u308a\u5f53\u3066\u3066\u3082\u6b8b\u308a\u306e<span>200<\/span>\u53f0\u5206\u306e<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306f\u7121\u99c4\u306b\u306a\u308a\u307e\u3059\u3002\u7121\u99c4\u306b\u3059\u308b\u306a\u3089\u3070\u5225\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5272\u308a\u5f53\u3066\u308c\u3070\u52b9\u7387\u7684\u306b\u4f7f\u3048\u307e\u3059\u3088\u306d\uff1f\u3000\u3053\u308c\u304c\u30b5\u30d6\u30cd\u30c3\u30c8\u5206\u5272\u306e\u8003\u3048\u65b9\u306a\u3093\u3067\u3059\uff01\u300d\u3068\u4e01\u5be7\u306a\u304c\u3089\u3082\u3001\u71b1\u304f\u8a9e\u308a\u639b\u3051\u308b\u8b1b\u5e2b\u306b\u3082\u3059\u3063\u304b\u308a\u71b1\u304c\u5165\u308a\u3001\u53d7\u8b1b\u751f\u305f\u3061\u3082\u300c\u3053\u3053\u306f\u9003\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u30dd\u30a4\u30f3\u30c8\uff01\u300d\u3068\u3070\u304b\u308a\u3001\uff11\u6642\u9593\u534a\u8fd1\u304f\u8b1b\u7fa9\u3092\u8074\u3044\u3066\u304d\u3066\u3082\u75b2\u308c\u308b\u3069\u3053\u308d\u304b\u3089\u3001\u771f\u5263\u306a\u773c\u5dee\u3057\u3067\u8b1b\u5e2b\u306e\u8aac\u660e\u306b\u8033\u3092\u50be\u3051\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso30.png\" alt=\"\" width=\"474\" height=\"121\" class=\"size-full wp-image-2260 aligncenter\" \/><\/p>\n<p>\u8b1b\u5e2b\u306f\u300c\u30af\u30e9\u30b9<span>C<\/span>\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\uff11\u3064\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3001<span>254<\/span>\u53f0\u306e\u30db\u30b9\u30c8\u3092\u53ce\u5bb9\u3067\u304d\u308b\u300d\u3053\u3068\u306b\u6c17\u4ed8\u304b\u305b\u305f\u304f\u3066\u3001\u4e0a\u8a18\u306e\u3000\u56f3\u3092\u7528\u3044\u3066\u8aac\u660e\u3092\u7d9a\u3051\u307e\u3057\u305f\u3002\u66f4\u306b\u3042\u3089\u304b\u3058\u3081\u53d7\u8b1b\u751f\u305f\u3061\u306b\u914d\u5e03\u3057\u305f\u4ee5\u4e0b\u8cc7\u6599\u3092\u7528\u3044\u3066\u6b21\u306e\u3088\u3046\u306b\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso31.png\" alt=\"\" width=\"478\" height=\"204\" class=\"size-full wp-image-2261 aligncenter\" \/><\/p>\n<p>1\uff09\u4eca\u56de\u306f\u3001<span>50<\/span>\u53f0\u5206\u306e<span>IP<\/span>\u30a2\u30c9\u30ec\u30b9\u306e\u78ba\u4fdd\u304c\u5fc5\u8981<br \/>\n<span>2<\/span>\uff09\u914d\u5e03\u3057\u305f\u8cc7\u6599\u4e2d\u306e\u9805\u76ee\u3010\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u6570\u3011\u3067\u3001<span>50<\/span>\u306b\u8fd1\u3044\u6570\u306f<span>64<br \/>\n<\/span><span>3<\/span>\uff09<span>64<\/span>\u306e\u30d3\u30c3\u30c8\u6570\u306f<span>2<\/span>\u306e<span>6<\/span>\u4e57\u306a\u306e\u3067\u3001\u30db\u30b9\u30c8\u90e8\u3010<span>0<\/span>\u3011\u306f<span>2<\/span>\u9032\u6570\u3067\u8868\u8a18\u3059\u308b\u3068\u6b8b\u308a<span>2<\/span>\u306e<span>2<\/span>\u4e57\u3068\u306a\u308b<br \/>\n<span>4<\/span>\uff09\u8868\u8a18\u3059\u308b\u3068\u6b8b\u308a<span>2<\/span>\u306e<span>2<\/span>\u4e57\u3068\u306a\u308b\u305f\u3081\u4e0b\u8a18\u3068\u306a\u308b<br \/>\n\u3000\u3000\u3000\u3000\u300c<span>11111111.\u00a0 11111111.\u00a0 11111111. 11000000<\/span>\u300d<br \/>\n<span>5<\/span>\uff09\u5206\u5272\u3057\u305f\u6570\u306f\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u6570\u300d\u5217\u306b\u8868\u8a18\u3055\u308c\u308b\u3088\u3046\u306b\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u304b\u3089<span>4<\/span>\u5206\u5272\u3057\u3066\u3044\u308b<br \/>\n<span>6<\/span>\uff09\u30af\u30e9\u30b9<span>C<\/span>\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u304b\u3089\uff12\u30d3\u30c3\u30c8\u5206\u3001\u30db\u30b9\u30c8\u90e8\u306b\u62e1\u5f35\u3055\u305b\u3066\u3044\u308b\u3002<br \/>\n<span>7<\/span>\uff09\u3053\u308c\u3092\uff11\uff10\u9032\u6570\u8868\u8a18\u306b\u76f4\u3059\u3068\u3001\u300c<span>128+64<\/span>\u300d\u3067<span>192<\/span>\u3068\u306a\u308a\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306f\u300c<span>255.255.255.192<\/span>\u300d\u00a0\u00a0<br \/>\n\u00a0 \u00a0 \u00a0 CIDR\u8868\u8a18\u306b\u3059\u308b\u3068\u3001\u300c<span>\/26<\/span>\u300d\u3068\u306a\u308b\u3002<\/p>\n<p>\u6700\u5f8c\u306b\u8b1b\u5e2b\u306f\u4e0a\u8a18\u306e\u56f3\u3092\u7528\u3044\u3066\u300c\u30af\u30e9\u30b9<span>C<\/span>\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u304b\u3089\uff14\u5206\u5272\u3092\u3057\u305f\u306e\u3067\uff14\u5206\u5272\u3002\u30db\u30b9\u30c8\u6570\u306f\uff11\u3064\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3054\u3068\u306b<span>62<\/span>\u500b\u306b\u306a\u308b\u300d\u3068\u8aac\u660e\u3092\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.bold.ne.jp\/engineer-club\/wp-content\/uploads\/2019\/12\/NWkiso32.png\" alt=\"\" width=\"469\" height=\"151\" class=\"size-full wp-image-2262 aligncenter\" \/><\/p>\n<p>\u4eca\u307e\u3067\u300c\u3068\u3063\u3064\u304d\u3065\u3089\u304b\u3063\u305f\u30b5\u30d6\u30cd\u30c3\u30c8\u5206\u5272\u8a08\u7b97\u300d\u3092\u3001\u56f3\u3092\u7528\u3044\u3066\u8aac\u660e\u3059\u308b\u8b1b\u5e2b\u306e\u8aac\u660e\u306b\u3088\u308a\u3001\u53d7\u8b1b\u751f\u305f\u3061\u304c\u6700\u5f8c\u306b\u3059\u3063\u304d\u308a\u3068\u3057\u305f\u8868\u60c5\u3068\u306a\u3063\u305f\u306e\u304c\u3068\u3066\u3082\u5370\u8c61\u306b\u6b8b\u308a\u307e\u3057\u305f\u3002\u6700\u5f8c\u306b\u4ee5\u4e0b\u306e\u7df4\u7fd2\u554f\u984c\u3092\u89e3\u304d\u53d7\u8b1b\u751f\u5168\u54e1\u306b\u8003\u3048\u3066\u3066\u3082\u3089\u3044\u3001\u305d\u306e\u5f8c\u6307\u540d\u3092\u3057\u3066\u56de\u7b54\u3092\u3057\u3066\u8cb0\u3044\u307e\u3057\u305f\u3002\u3053\u3053\u307e\u3067\u53d6\u3063\u305f\u30ce\u30fc\u30c8\u3084\u3001\u914d\u5e03\u3057\u305f\u8cc7\u6599\u3092\u7528\u3044\u3066\u3001\u81ea\u529b\u3067\u8a08\u7b97\u3057\u7b54\u3048\u3092\u5c0e\u304d\u51fa\u305b\u3066\u3053\u3068\u3067\u6700\u5f8c\u306f\u6e80\u8db3\u3057\u3066\u7b2c\u4e8c\u56de\u76ee\u306e\u8b1b\u7fa9\u3092\u7121\u4e8b\u7d42\u4e86\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3057\u305f\u3002<\/p>\n<p>\u300a\u554f\u984c\uff11\u300b<span>192.168.75.10 \/28 <\/span>\u306b\u3064\u3044\u3066\u3001\u305d\u308c\u305e\u308c\u4ee5\u4e0b\u306e\u554f\u3044\u306b\u7b54\u3048\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\n\u3000\u3000\u30af\u30e9\u30b9<span>C<\/span>\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u304b\u3089\u4f55\u5206\u5272\u3057\u3066\u3044\u307e\u3059\u304b\uff1f<br \/>\n\u3000\u3000\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u5024\u306f\u3044\u304f\u3064\u306b\u306a\u308a\u307e\u3059\u304b\uff1f<br \/>\n\u3000\u3000\u5206\u5272\u3055\u308c\u305f\u5404\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u306f\u3001\u4f55\u53f0\u306e\u30db\u30b9\u30c8\u3092\u5272\u308a\u5f53\u3066\u308b\u4e8b\u304c\u3067\u304d\u307e\u3059\u304b\uff1f<\/p>\n<p>\u300a\u554f\u984c<span>2<\/span>\u300b<span>210.53.120.54 \/27<\/span>\u306b\u3064\u3044\u3066\u3001\u305d\u308c\u305e\u308c\u4ee5\u4e0b\u306e\u554f\u3044\u306b\u7b54\u3048\u3066\u304f\u3060\u3055\u3044<br \/>\n\u3000\u3000\u30af\u30e9\u30b9<span>C<\/span>\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u304b\u3089\u4f55\u5206\u5272\u3057\u3066\u3044\u307e\u3059\u304b\uff1f<br \/>\n\u3000\u3000\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u5024\u306f\u3044\u304f\u3064\u306b\u306a\u308a\u307e\u3059\u304b\uff1f<br \/>\n\u3000\u3000<span>210.53.120.54<\/span>\u304c\u6240\u5c5e\u3059\u308b<span>NW<\/span>\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306f\uff1f<\/p>\n<h2><strong><\/strong><strong>\uff12\uff0e\u6b21\u56de\u4e88\u544a<\/strong><\/h2>\n<p>\u7b2c<span>3<\/span>\u56de\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u57fa\u790e\u52c9\u5f37\u4f1a\u306f\u6700\u7d42\u4f1a\u3068\u3057\u3066\u300c\u904e\u53bb\uff12\u56de\u5206\u7dcf\u307e\u3068\u3081\u300d\u300c\u767a\u5c55\u7684\u5185\u5bb9\u300d\u306b\u3064\u3044\u3066\u91cd\u70b9\u7684\u306b\u8b1b\u7fa9\u3057\u307e\u3059\u3002\u305d\u3057\u3066\uff12\u6642\u9593\u306e\u8b1b\u7fa9\u306e\u5f8c\u534a\uff11\u6642\u9593\u306f\u3001\uff13\u56de\u5206\u306e\u7dcf\u6c7a\u7b97\u3068\u3057\u3066\u4fee\u4e86\u691c\u5b9a\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30e9\u30a4\u30f3\u30ca\u30c3\u30d7\uff1a<br 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