{"id":6751,"date":"2025-06-25T13:53:29","date_gmt":"2025-06-25T04:53:29","guid":{"rendered":"https:\/\/blog.smartlight.co.jp\/?p=6751"},"modified":"2025-06-25T13:53:30","modified_gmt":"2025-06-25T04:53:30","slug":"wireshark%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"https:\/\/blog.smartlight.co.jp\/?p=6751","title":{"rendered":"Wireshark\u306b\u3064\u3044\u3066"},"content":{"rendered":"\n<p>Wireshark\uff08\u30ef\u30a4\u30e4\u30fc\u30b7\u30e3\u30fc\u30af\uff09\u3068\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d1\u30b1\u30c3\u30c8\u3092\u8a73\u7d30\u306b\u89e3\u6790\u3067\u304d\u308b\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3000\u7c21\u5358\u306b\u8a00\u3046\u3068\u300c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4f1a\u8a71\uff08\u901a\u4fe1\uff09\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u30c4\u30fc\u30eb\u300d\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30d1\u30b1\u30c3\u30c8\u3068\u306f<\/h4>\n\n\n\n<p>\u30d1\u30b1\u30c3\u30c8\u3068\u306f\u3001\u30cd\u30c3\u30c8\u4e0a\u3067\u3084\u308a\u53d6\u308a\u3055\u308c\u308b\u300c<strong>\u30c7\u30fc\u30bf\u306e\u304b\u305f\u307e\u308a<\/strong>\u300d\u3067\u3059\u3002<br>\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3068\u304d\u3084\u52d5\u753b\u3092\u518d\u751f\u3059\u308b\u3068\u304d\u306a\u3069\u3059\u3079\u3066\u300c\u30d1\u30b1\u30c3\u30c8\u300d\u3068\u3044\u3046\u5f62\u3067\u30cd\u30c3\u30c8\u4e0a\u3092\u6d41\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Wireshark\u3067\u898b\u3048\u308b\u3053\u3068<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8ab0\u306e\u30d1\u30bd\u30b3\u30f3\uff08IP\u30a2\u30c9\u30ec\u30b9\uff09\u304c\u3001\u3069\u3053\uff08\u30b5\u30fc\u30d0\u30fc\uff09\u3068\u901a\u4fe1\u3057\u3066\u308b\uff1f<\/li>\n\n\n\n<li>\u3069\u3093\u306a\u30c7\u30fc\u30bf\u3092\u9001\u3063\u3066\u3044\u308b\uff1f\uff08\u203b\u6697\u53f7\u5316\u3055\u308c\u3066\u306a\u3051\u308c\u3070\u4e2d\u8eab\u3082\u898b\u3048\u308b\uff09<\/li>\n\n\n\n<li>\u901a\u4fe1\u304c\u3046\u307e\u304f\u3044\u3063\u3066\u3044\u308b\u304b\uff1f\u6b62\u307e\u3063\u3066\u306a\u3044\u304b\uff1f<\/li>\n\n\n\n<li>\u30a6\u30a4\u30eb\u30b9\u3084\u602a\u3057\u3044\u901a\u4fe1\u304c\u6df7\u3056\u3063\u3066\u306a\u3044\u304b\uff1f<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u51fa\u6765\u308b\u3053\u3068<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9001\u53d7\u4fe1\u3055\u308c\u308b\u30d1\u30b1\u30c3\u30c8\u306e\u4e2d\u8eab\u3092\u8a73\u7d30\u306b\u8868\u793a<\/li>\n\n\n\n<li>\u3069\u306eIP\u304c\u3069\u3053\u306b\u901a\u4fe1\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d<\/li>\n\n\n\n<li>HTTP, TCP, UDP, DNS, TLS\u306a\u3069\u3001\u591a\u304f\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u30d5\u30a3\u30eb\u30bf\u30fc\u6a5f\u80fd\u3092\u4f7f\u3063\u3066\u3001\u7279\u5b9a\u306e\u901a\u4fe1\u3060\u3051\u3092\u62bd\u51fa<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3b\u306a\u4f7f\u3044\u9053<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406<\/td><td>\u901a\u4fe1\u304c\u9045\u3044\/\u5207\u308c\u308b\u539f\u56e0\u3092\u8abf\u67fb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/td><td>\u4e0d\u5be9\u306a\u30a2\u30af\u30bb\u30b9\u3084\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u76e3\u8996<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/td><td>API\u306e\u30ea\u30af\u30a8\u30b9\u30c8\/\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u78ba\u8a8d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>IoT\/\u7d44\u307f\u8fbc\u307f<\/td><td>\u6a5f\u5668\u3068\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u901a\u4fe1\u3092\u8abf\u67fb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u30a4\u30f3\u30d5\u30e9\u8a2d\u8a08<\/td><td>\u8907\u6570\u30b7\u30b9\u30c6\u30e0\u9593\u306e\u901a\u4fe1\u78ba\u8a8d\u3068\u691c\u8a3c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Wireshark\u306e\u898b\u65b9<\/h3>\n\n\n\n<p>\u30d1\u30b1\u30c3\u30c8\u4e00\u89a7\uff08\u4e0a\u306e\u90e8\u5206\uff09\u3053\u3053\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u6d41\u308c\u305f\u3059\u3079\u3066\u306e\u901a\u4fe1\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9805\u76ee<\/th><th>\u610f\u5473<\/th><\/tr><\/thead><tbody><tr><td>No.<\/td><td>\u30d1\u30b1\u30c3\u30c8\u756a\u53f7\uff081, 2, 3\u2026\uff09<\/td><\/tr><tr><td>Time<\/td><td>\u30ad\u30e3\u30d7\u30c1\u30e3\u958b\u59cb\u304b\u3089\u306e\u6642\u9593\uff08\u4f55\u79d2\u5f8c\u306b\u3053\u306e\u30d1\u30b1\u30c3\u30c8\u304c\u5c4a\u3044\u305f\u304b\uff09<\/td><\/tr><tr><td>Source<\/td><td>\u901a\u4fe1\u306e\u9001\u308a\u624b\uff08IP\u30a2\u30c9\u30ec\u30b9\u306a\u3069\uff09<\/td><\/tr><tr><td>Destination<\/td><td>\u901a\u4fe1\u306e\u53d7\u3051\u624b<\/td><\/tr><tr><td>Protocol<\/td><td>\u901a\u4fe1\u306e\u7a2e\u985e\uff08TCP, HTTP, DNS\u306a\u3069\uff09<\/td><\/tr><tr><td>Length<\/td><td>\u30d1\u30b1\u30c3\u30c8\u306e\u5927\u304d\u3055\uff08\u30d0\u30a4\u30c8\uff09<\/td><\/tr><tr><td>Info<\/td><td>\u7c21\u5358\u306a\u5185\u5bb9\uff08\u4f8b\uff1aGET \/index.html\u306a\u3069\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u30d1\u30b1\u30c3\u30c8\u8a73\u7d30\uff08\u771f\u3093\u4e2d\u306e\u90e8\u5206\uff09\u3053\u3053\u3067\u306f\u3001\u9078\u3093\u3060\u30d1\u30b1\u30c3\u30c8\u306e\u4e2d\u8eab\u3092\u5206\u89e3\u3057\u305f\u60c5\u5831\u304c\u968e\u5c64\u7684\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Frame<\/td><td>\u30d1\u30b1\u30c3\u30c8\u306e\u5168\u4f53\u60c5\u5831<\/td><\/tr><tr><td>Ethernet<\/td><td>MAC\u30a2\u30c9\u30ec\u30b9\u306e\u60c5\u5831<\/td><\/tr><tr><td>IP<\/td><td>IP\u30a2\u30c9\u30ec\u30b9\u306e\u60c5\u5831<\/td><\/tr><tr><td>TCP\/UDP<\/td><td>\u30dd\u30fc\u30c8\u756a\u53f7\u306a\u3069<\/td><\/tr><tr><td>HTTP\/DNS<\/td><td>\u901a\u4fe1\u306e\u5177\u4f53\u7684\u306a\u5185\u5bb9\uff08GET\/POST\u306a\u3069\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u898b\u308b\u3079\u304d\u5834\u6240<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30dd\u30a4\u30f3\u30c8<\/th><th>\u5185\u5bb9<\/th><\/tr><\/thead><tbody><tr><td>\u901a\u4fe1\u304c\u3046\u307e\u304f\u3044\u3063\u3066\u308b\u304b\uff1f<\/td><td>TCP\u306e3-way handshake\uff08SYN, SYN-ACK, ACK\uff09\u3092\u30c1\u30a7\u30c3\u30af<\/td><\/tr><tr><td>\u901a\u4fe1\u304c\u5207\u308c\u3066\u308b\uff1f<\/td><td>RST\uff08\u30ea\u30bb\u30c3\u30c8\uff09\u3084\u91cd\u8907ACK\u306a\u3069\u3067\u308f\u304b\u308b<\/td><\/tr><tr><td>\u6697\u53f7\u5316\u3055\u308c\u3066\u308b\uff1f<\/td><td>HTTPS\u306f\u4e2d\u8eab\u898b\u3048\u306a\u3044\u304c\u3001\u8a3c\u660e\u66f8\u60c5\u5831\u306a\u3069\u306f\u898b\u3048\u308b<\/td><\/tr><tr><td>\u4e0d\u5be9\u306a\u901a\u4fe1\u306f\uff1f<\/td><td>DNS\u3084HTTP\u3067\u77e5\u3089\u306a\u3044\u30c9\u30e1\u30a4\u30f3\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u306a\u3044\u304b\u78ba\u8a8d<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Wireshark\uff08\u30ef\u30a4\u30e4\u30fc\u30b7\u30e3\u30fc\u30af\uff09\u3068\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d1\u30b1\u30c3\u30c8\u3092\u8a73\u7d30\u306b\u89e3\u6790\u3067\u304d\u308b\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3000\u7c21\u5358\u306b\u8a00\u3046\u3068\u300c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4f1a\u8a71\uff08\u901a\u4fe1\uff09\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u30c4\u30fc\u30eb\u300d\u3067\u3059\u3002 \u30d1\u30b1\u30c3\u30c8\u3068\u306f \u30d1\u30b1<\/p>\n","protected":false},"author":22,"featured_media":6753,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jin_ogp_image_url":"https:\/\/blog.smartlight.co.jp\/wp-content\/uploads\/2025\/06\/thumbnails-ogp-6751.png","_jin_last_featured_id":6753,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-6751","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-intern"],"jetpack_featured_media_url":"https:\/\/blog.smartlight.co.jp\/wp-content\/uploads\/2025\/06\/thumbnails-featured-6751.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/6751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6751"}],"version-history":[{"count":2,"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/6751\/revisions"}],"predecessor-version":[{"id":6764,"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/6751\/revisions\/6764"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=\/wp\/v2\/media\/6753"}],"wp:attachment":[{"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.smartlight.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}