{"id":337,"date":"2026-05-25T09:46:58","date_gmt":"2026-05-25T00:46:58","guid":{"rendered":"https:\/\/blog.andount.com\/?p=337"},"modified":"2026-05-25T09:46:59","modified_gmt":"2026-05-25T00:46:59","slug":"nvr500%e3%81%a7%e7%aa%81%e7%84%b6%e3%81%ae%e4%b8%8d%e6%ad%a3%e3%82%a2%e3%82%af%e3%82%bb%e3%82%b9%e8%ad%a6%e5%91%8a%ef%bc%81icmp-too-large%e3%81%ae%e7%8a%af%e4%ba%ba%e3%81%af%e3%81%be%e3%81%95%e3%81%8b","status":"publish","type":"post","link":"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/","title":{"rendered":"NVR500\u3067\u7a81\u7136\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u8b66\u544a\uff01ICMP too large\u306e\u72af\u4eba\u306f\u307e\u3055\u304b\u306e\u2026"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%F0%9F%9A%A8_%E7%AA%81%E7%84%B6%E3%81%AE%E4%B8%8D%E6%AD%A3%E3%82%A2%E3%82%AF%E3%82%BB%E3%82%B9%E8%AD%A6%E5%91%8A%E3%81%AB%E3%83%89%E3%82%AD%E3%83%83%EF%BC%81\" >\ud83d\udea8 \u7a81\u7136\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u8b66\u544a\u306b\u30c9\u30ad\u30c3\uff01<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%F0%9F%94%8D_%E3%83%AD%E3%82%B0%E3%82%92%E7%A2%BA%E8%AA%8D%E3%81%97%E3%81%A6%E3%81%BF%E3%82%8B%E3%81%A8%E2%80%A6\" >\ud83d\udd0d \u30ed\u30b0\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u2026<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%F0%9F%93%B1_ICMP_too_large%E3%81%A8%E3%81%AF%EF%BC%9F\" >\ud83d\udcf1 ICMP too large\u3068\u306f\uff1f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%F0%9F%95%B5%EF%B8%8F_%E7%8A%AF%E4%BA%BA%E6%8E%A2%E3%81%97%E3%81%AE%E9%96%8B%E5%A7%8B\" >\ud83d\udd75\ufe0f \u72af\u4eba\u63a2\u3057\u306e\u958b\u59cb<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%F0%9F%8D%8E_iPad%E3%81%8C%E5%8E%9F%E5%9B%A0%EF%BC%9F%E3%81%9D%E3%81%AE%E7%90%86%E7%94%B1%E3%81%A8%E3%81%AF\" >\ud83c\udf4e iPad\u304c\u539f\u56e0\uff1f\u305d\u306e\u7406\u7531\u3068\u306f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%F0%9F%9B%A0%EF%B8%8F_%E8%A7%A3%E6%B1%BA%E7%AD%96%E3%81%A8%E5%AF%BE%E5%BF%9C%E6%96%B9%E6%B3%95\" >\ud83d\udee0\ufe0f \u89e3\u6c7a\u7b56\u3068\u5bfe\u5fdc\u65b9\u6cd5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%E5%AF%BE%E5%BF%9C%E7%AD%961%EF%BC%9ANVR500%E3%81%AE%E3%83%95%E3%82%A3%E3%83%AB%E3%82%BF%E8%A8%AD%E5%AE%9A%E3%82%92%E8%AA%BF%E6%95%B4\" >\u5bfe\u5fdc\u7b561\uff1aNVR500\u306e\u30d5\u30a3\u30eb\u30bf\u8a2d\u5b9a\u3092\u8abf\u6574<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%E5%AF%BE%E5%BF%9C%E7%AD%962%EF%BC%9A%E8%AD%A6%E5%91%8A%E3%81%AE%E9%96%BE%E5%80%A4%E3%82%92%E5%A4%89%E6%9B%B4\" >\u5bfe\u5fdc\u7b562\uff1a\u8b66\u544a\u306e\u95be\u5024\u3092\u5909\u66f4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%E5%AF%BE%E5%BF%9C%E7%AD%963%EF%BC%9A%E8%A9%B2%E5%BD%93%E3%83%87%E3%83%90%E3%82%A4%E3%82%B9%E3%81%AE%E8%A8%AD%E5%AE%9A%E5%A4%89%E6%9B%B4\" >\u5bfe\u5fdc\u7b563\uff1a\u8a72\u5f53\u30c7\u30d0\u30a4\u30b9\u306e\u8a2d\u5b9a\u5909\u66f4<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%F0%9F%8E%AF_%E7%A7%81%E3%81%9F%E3%81%A1%E3%81%8C%E9%81%B8%E3%82%93%E3%81%A0%E5%AF%BE%E5%BF%9C\" >\ud83c\udfaf \u79c1\u305f\u3061\u304c\u9078\u3093\u3060\u5bfe\u5fdc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%F0%9F%92%A1_%E5%AD%A6%E3%82%93%E3%81%A0%E3%81%93%E3%81%A8\" >\ud83d\udca1 \u5b66\u3093\u3060\u3053\u3068<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/#%E2%9C%85_%E3%81%BE%E3%81%A8%E3%82%81\" >\u2705 \u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%9A%A8_%E7%AA%81%E7%84%B6%E3%81%AE%E4%B8%8D%E6%AD%A3%E3%82%A2%E3%82%AF%E3%82%BB%E3%82%B9%E8%AD%A6%E5%91%8A%E3%81%AB%E3%83%89%E3%82%AD%E3%83%83%EF%BC%81\"><\/span>\ud83d\udea8 \u7a81\u7136\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u8b66\u544a\u306b\u30c9\u30ad\u30c3\uff01<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u7686\u69d8\u3053\u3093\u306b\u3061\u306f\uff01<\/p>\n\n\n\n<p>\u81ea\u5b85\u306b\u7a81\u7136\u9cf4\u308a\u97ff\u304f\u30a2\u30e9\u30fc\u30c8\u97f3\u3002\u30e4\u30de\u30cf\u306e\u30eb\u30fc\u30bf\u30fcNVR500\u304c\u300c\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u691c\u77e5\u3057\u307e\u3057\u305f\u300d\u3068\u8b66\u544a\u3092\u767a\u3057\u3066\u3044\u308b\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff01\u4e00\u77ac\u3001\u51b7\u3084\u6c57\u304c\u80cc\u4e2d\u3092\u6d41\u308c\u307e\u3059\u3002\u300c\u307e\u3055\u304b\u672c\u5f53\u306b\u653b\u6483\u3055\u308c\u3066\u3044\u308b\uff1f\u300d\u305d\u3093\u306a\u7dca\u5f35\u306e\u77ac\u9593\u304b\u3089\u59cb\u307e\u3063\u305f\u3001\u4eca\u56de\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u8a18\u9332\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%94%8D_%E3%83%AD%E3%82%B0%E3%82%92%E7%A2%BA%E8%AA%8D%E3%81%97%E3%81%A6%E3%81%BF%E3%82%8B%E3%81%A8%E2%80%A6\"><\/span>\ud83d\udd0d \u30ed\u30b0\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u2026<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u307e\u305a\u843d\u3061\u7740\u3044\u3066NVR500\u306e\u7ba1\u7406\u753b\u9762\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3001\u30ed\u30b0\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3059\u308b\u3068\u3001\u305d\u3053\u306b\u306f\u898b\u6163\u308c\u306a\u3044\u8b66\u544a\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u4e26\u3093\u3067\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;INTRUSION] ICMP too large from 172.16.0.142\n&#91;INTRUSION] ICMP too large from 172.16.0.xxx\n&#91;INTRUSION] ICMP too large from 172.16.0.xxx\n\n<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"395\" src=\"https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/1499905bf8933d4d5cc8d42fd82b631a-1024x395.png\" alt=\"\" class=\"wp-image-338\" srcset=\"https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/1499905bf8933d4d5cc8d42fd82b631a-1024x395.png 1024w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/1499905bf8933d4d5cc8d42fd82b631a-300x116.png 300w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/1499905bf8933d4d5cc8d42fd82b631a-768x297.png 768w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/1499905bf8933d4d5cc8d42fd82b631a-660x255.png 660w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/1499905bf8933d4d5cc8d42fd82b631a.png 1450w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u4f55\u5ea6\u3082\u7e70\u308a\u8fd4\u3055\u308c\u308b\u300cICMP too large\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u3002\u5916\u90e8\u304b\u3089\u306e\u653b\u6483\u304b\u3068\u601d\u3044\u304d\u3084\u3001\u767a\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u306f\u793e\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u3082\u306e\u3067\u3059\u3002\u3053\u308c\u306f\u4e00\u4f53\u3069\u3046\u3044\u3046\u3053\u3068\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%93%B1_ICMP_too_large%E3%81%A8%E3%81%AF%EF%BC%9F\"><\/span>\ud83d\udcf1 ICMP too large\u3068\u306f\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>ICMP\uff08Internet Control Message Protocol\uff09\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u540c\u58eb\u304c\u901a\u4fe1\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u7686\u3055\u3093\u3082\u304a\u99b4\u67d3\u307f\u306e\u300cping\u300d\u30b3\u30de\u30f3\u30c9\u304c\u3053\u306eICMP\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u300cICMP too large\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u306f\u3001\u901a\u5e38\u3088\u308a\u3082\u5927\u304d\u306a\u30b5\u30a4\u30ba\u306eICMP\u30d1\u30b1\u30c3\u30c8\u304c\u9001\u4fe1\u3055\u308c\u305f\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002NVR500\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u304c\u3001\u3053\u306e\u7570\u5e38\u306a\u30b5\u30a4\u30ba\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u300c\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306e\u53ef\u80fd\u6027\u3042\u308a\u300d\u3068\u5224\u65ad\u3057\u305f\u308f\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%95%B5%EF%B8%8F_%E7%8A%AF%E4%BA%BA%E6%8E%A2%E3%81%97%E3%81%AE%E9%96%8B%E5%A7%8B\"><\/span>\ud83d\udd75\ufe0f \u72af\u4eba\u63a2\u3057\u306e\u958b\u59cb<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u306e\u7570\u5e38\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3002\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u3001\u554f\u984c\u306e\u767a\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u304c\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u306a\u306e\u304b\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u3067\u3059\u3002DHCP\u30ea\u30fc\u30b9\u30ea\u30b9\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001\u305d\u306eIP\u30a2\u30c9\u30ec\u30b9\u306f\u2026\u306a\u3093\u3068\u3001\u90e8\u5c4b\u306b\u7f6e\u3044\u3066\u3042\u308biPad\u3067\u3057\u305f\uff01<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"149\" src=\"https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/b730cdd93b7ffefa679584f21594ce72-1024x149.png\" alt=\"\" class=\"wp-image-339\" srcset=\"https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/b730cdd93b7ffefa679584f21594ce72-1024x149.png 1024w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/b730cdd93b7ffefa679584f21594ce72-300x44.png 300w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/b730cdd93b7ffefa679584f21594ce72-768x111.png 768w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/b730cdd93b7ffefa679584f21594ce72-660x96.png 660w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/b730cdd93b7ffefa679584f21594ce72.png 1075w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%8D%8E_iPad%E3%81%8C%E5%8E%9F%E5%9B%A0%EF%BC%9F%E3%81%9D%E3%81%AE%E7%90%86%E7%94%B1%E3%81%A8%E3%81%AF\"><\/span>\ud83c\udf4e iPad\u304c\u539f\u56e0\uff1f\u305d\u306e\u7406\u7531\u3068\u306f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5b9f\u306f\u3001iOS\u7aef\u672b\u3084macOS\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a3a\u65ad\u306e\u4e00\u74b0\u3068\u3057\u3066\u5b9a\u671f\u7684\u306bICMP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u767a\u751f\u3057\u3084\u3059\u3044\u3053\u3068\u304c\u5206\u304b\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wi-Fi\u63a5\u7d9a\u306e\u54c1\u8cea\u30c1\u30a7\u30c3\u30af\u6642<\/li>\n\n\n\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5207\u308a\u66ff\u3048\u6642\uff08\u30e2\u30d0\u30a4\u30eb\u30c7\u30fc\u30bf\u21d4Wi-Fi\uff09<\/li>\n\n\n\n<li>\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u306eiCloud\u30b5\u30fc\u30d3\u30b9\u5229\u7528\u6642<\/li>\n\n\n\n<li>AirDrop\u3084Handoff\u306a\u3069\u306e\u9023\u643a\u6a5f\u80fd\u4f7f\u7528\u6642<\/li>\n<\/ul>\n\n\n\n<p>\u554f\u984c\u306eiPad\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u3001\u6700\u8fd1iOS\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u884c\u3063\u305f\u3070\u304b\u308a\u3067\u3057\u305f\u3002\u3069\u3046\u3084\u3089\u3001\u65b0\u3057\u3044OS\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a3a\u65ad\u306e\u6319\u52d5\u304c\u5909\u308f\u308a\u3001\u3088\u308a\u5927\u304d\u306a\u30b5\u30a4\u30ba\u306eICMP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1001\" height=\"711\" src=\"https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/e0c18dd53c8096b8ee9c0c74e1681108.png\" alt=\"\" class=\"wp-image-340\" srcset=\"https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/e0c18dd53c8096b8ee9c0c74e1681108.png 1001w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/e0c18dd53c8096b8ee9c0c74e1681108-300x213.png 300w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/e0c18dd53c8096b8ee9c0c74e1681108-768x546.png 768w, https:\/\/blog.andount.com\/wp-content\/uploads\/2026\/05\/e0c18dd53c8096b8ee9c0c74e1681108-660x469.png 660w\" sizes=\"auto, (max-width: 1001px) 100vw, 1001px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%9B%A0%EF%B8%8F_%E8%A7%A3%E6%B1%BA%E7%AD%96%E3%81%A8%E5%AF%BE%E5%BF%9C%E6%96%B9%E6%B3%95\"><\/span>\ud83d\udee0\ufe0f \u89e3\u6c7a\u7b56\u3068\u5bfe\u5fdc\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u3053\u306e\u554f\u984c\u3078\u306e\u5bfe\u5fdc\u65b9\u6cd5\u306f\u3044\u304f\u3064\u304b\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u8e0f\u307e\u3048\u3066\u9078\u629e\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%AF%BE%E5%BF%9C%E7%AD%961%EF%BC%9ANVR500%E3%81%AE%E3%83%95%E3%82%A3%E3%83%AB%E3%82%BF%E8%A8%AD%E5%AE%9A%E3%82%92%E8%AA%BF%E6%95%B4\"><\/span>\u5bfe\u5fdc\u7b561\uff1aNVR500\u306e\u30d5\u30a3\u30eb\u30bf\u8a2d\u5b9a\u3092\u8abf\u6574<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>ip filter 1 pass * 192.168.1.0\/24 icmp\nip lan1 secure filter in 1<\/code><\/pre>\n\n\n\n<p>\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u306eICMP\u30d1\u30b1\u30c3\u30c8\u3092\u8a31\u53ef\u3059\u308b\u8a2d\u5b9a\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30d9\u30eb\u306f\u82e5\u5e72\u4e0b\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%AF%BE%E5%BF%9C%E7%AD%962%EF%BC%9A%E8%AD%A6%E5%91%8A%E3%81%AE%E9%96%BE%E5%80%A4%E3%82%92%E5%A4%89%E6%9B%B4\"><\/span>\u5bfe\u5fdc\u7b562\uff1a\u8b66\u544a\u306e\u95be\u5024\u3092\u5909\u66f4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>NVR500\u306e\u8a2d\u5b9a\u3067\u3001ICMP\u30d1\u30b1\u30c3\u30c8\u30b5\u30a4\u30ba\u306e\u8b66\u544a\u95be\u5024\u3092\u4e0a\u3052\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u672c\u5f53\u306e\u653b\u6483\u3092\u898b\u9003\u3059\u30ea\u30b9\u30af\u3082\u3042\u308b\u305f\u3081\u3001\u614e\u91cd\u306a\u5224\u65ad\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%AF%BE%E5%BF%9C%E7%AD%963%EF%BC%9A%E8%A9%B2%E5%BD%93%E3%83%87%E3%83%90%E3%82%A4%E3%82%B9%E3%81%AE%E8%A8%AD%E5%AE%9A%E5%A4%89%E6%9B%B4\"><\/span>\u5bfe\u5fdc\u7b563\uff1a\u8a72\u5f53\u30c7\u30d0\u30a4\u30b9\u306e\u8a2d\u5b9a\u5909\u66f4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>iPad\u3084iPhone\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u8a2d\u5b9a\u3067\u554f\u984c\u3092\u8efd\u6e1b\u3067\u304d\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Wi-Fi\u306e\u8a73\u7d30\u8a2d\u5b9a\u3067\u300c\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u300d\u3092\u30aa\u30d5\u306b\u3059\u308b<\/li>\n\n\n\n<li>iCloud\u306e\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u540c\u671f\u3092\u8abf\u6574\u3059\u308b<\/li>\n\n\n\n<li>AirDrop\u3092\u300c\u53d7\u4fe1\u3057\u306a\u3044\u300d\u306b\u8a2d\u5b9a\u3059\u308b\uff08\u5fc5\u8981\u6642\u306e\u307f\u30aa\u30f3\uff09<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%8E%AF_%E7%A7%81%E3%81%9F%E3%81%A1%E3%81%8C%E9%81%B8%E3%82%93%E3%81%A0%E5%AF%BE%E5%BF%9C\"><\/span>\ud83c\udfaf \u79c1\u305f\u3061\u304c\u9078\u3093\u3060\u5bfe\u5fdc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u4eca\u56de\u3001\u5bfe\u5fdc\u7b561\u30683\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u63a1\u7528\u3057\u307e\u3057\u305f\u3002\u307e\u305a\u3001\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u306e\u6b63\u5e38\u306aICMP\u901a\u4fe1\u3092\u8a31\u53ef\u3059\u308b\u3088\u3046\u30d5\u30a3\u30eb\u30bf\u3092\u8a2d\u5b9a\u3057\u3001\u305d\u306e\u4e0a\u3067iPad\u306e\u4e0d\u8981\u306a\u6a5f\u80fd\u3092\u30aa\u30d5\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u8a2d\u5b9a\u5909\u66f4\u5f8c\u300124\u6642\u9593\u7d4c\u904e\u3057\u3066\u3082\u8b66\u544a\u306f\u767a\u751f\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u3072\u3068\u307e\u305a\u554f\u984c\u306f\u89e3\u6c7a\u3057\u305f\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%F0%9F%92%A1_%E5%AD%A6%E3%82%93%E3%81%A0%E3%81%93%E3%81%A8\"><\/span>\ud83d\udca1 \u5b66\u3093\u3060\u3053\u3068<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u3053\u306e\u30c8\u30e9\u30d6\u30eb\u304b\u3089\u5b66\u3093\u3060\u30dd\u30a4\u30f3\u30c8\u3092\u3044\u304f\u3064\u304b\u6319\u3052\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3059\u3050\u306b\u30d1\u30cb\u30c3\u30af\u306b\u306a\u3089\u306a\u3044<\/strong>\uff1a\u8b66\u544a\uff1d\u5373\u653b\u6483\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u51b7\u9759\u306b\u30ed\u30b0\u3092\u5206\u6790\u3057\u307e\u3057\u3087\u3046<\/li>\n\n\n\n<li><strong>\u5185\u90e8\u304b\u3089\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3082\u8981\u6ce8\u610f<\/strong>\uff1a\u5916\u90e8\u304b\u3089\u3060\u3051\u3067\u306a\u304f\u3001\u793e\u5185\u30c7\u30d0\u30a4\u30b9\u306e\u6319\u52d5\u3082\u76e3\u8996\u5bfe\u8c61\u3067\u3059<\/li>\n\n\n\n<li><strong>OS\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u5f71\u97ff<\/strong>\uff1a\u30e2\u30d0\u30a4\u30eb\u30c7\u30d0\u30a4\u30b9\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u5f8c\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u52d5\u4f5c\u306b\u5909\u5316\u304c\u306a\u3044\u304b\u6ce8\u8996\u3057\u307e\u3057\u3087\u3046<\/li>\n\n\n\n<li><strong>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u306e\u91cd\u8981\u6027<\/strong>\uff1a\u540c\u3058\u554f\u984c\u304c\u518d\u767a\u3057\u305f\u6642\u306e\u305f\u3081\u306b\u3001\u5bfe\u5fdc\u8a18\u9332\u3092\u6b8b\u3059\u3053\u3068\u304c\u5927\u5207\u3067\u3059<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%9C%85_%E3%81%BE%E3%81%A8%E3%82%81\"><\/span>\u2705 \u307e\u3068\u3081<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>NVR500\u306e\u300c\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u8b66\u544a\u300d\u3068\u3044\u3046\u885d\u6483\u7684\u306a\u30a2\u30e9\u30fc\u30c8\u306e\u6b63\u4f53\u306f\u3001iPad\u304c\u9001\u4fe1\u3057\u305f\u5927\u304d\u3081\u306eICMP\u30d1\u30b1\u30c3\u30c8\u3067\u3057\u305f\u3002\u4e00\u898b\u3059\u308b\u3068\u6050\u308d\u3057\u3044\u8b66\u544a\u3082\u3001\u843d\u3061\u7740\u3044\u3066\u539f\u56e0\u3092\u8ffd\u7a76\u3059\u308c\u3070\u3001\u610f\u5916\u3068\u8eab\u8fd1\u306a\u3068\u3053\u308d\u306b\u7b54\u3048\u304c\u3042\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u306f\u3001\u79c1\u305f\u3061\u3092\u5b88\u3063\u3066\u304f\u308c\u308b\u5fc3\u5f37\u3044\u5473\u65b9\u3067\u3059\u304c\u3001\u6642\u306b\u306f\u300c\u904e\u4fdd\u8b77\u300d\u306a\u53cd\u5fdc\u3092\u793a\u3059\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u9069\u5207\u306a\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3068\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u7279\u6027\u7406\u89e3\u304c\u3001\u5feb\u9069\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u3092\u7dad\u6301\u3059\u308b\u9375\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7686\u3055\u3093\u3082\u7a81\u7136\u306e\u8b66\u544a\u306b\u906d\u9047\u3057\u305f\u3089\u3001\u307e\u305a\u306f\u6df1\u547c\u5438\u3057\u3066\u3001\u30ed\u30b0\u3092\u3058\u3063\u304f\u308a\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udea8 \u7a81\u7136\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u8b66\u544a\u306b\u30c9\u30ad\u30c3\uff01 \u7686\u69d8\u3053\u3093\u306b\u3061\u306f\uff01 \u81ea\u5b85\u306b\u7a81\u7136\u9cf4\u308a\u97ff\u304f\u30a2\u30e9\u30fc\u30c8\u97f3\u3002\u30e4\u30de\u30cf\u306e\u30eb\u30fc\u30bf\u30fcNVR500\u304c\u300c\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u691c\u77e5\u3057\u307e\u3057\u305f\u300d\u3068\u8b66\u544a\u3092\u767a\u3057\u3066\u3044\u308b\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff01\u4e00\u77ac\u3001\u51b7\u3084\u6c57\u304c\u80cc\u4e2d\u3092\u6d41\u308c\u307e\u3059\u3002\u300c\u307e\u3055\u304b\u2026 <span class=\"read-more\"><a href=\"https:\/\/blog.andount.com\/index.php\/2026\/05\/25\/337\/\">\u7d9a\u304d\u3092\u8aad\u3080 &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":338,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,18],"tags":[],"class_list":["post-337","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-network","category-daily"],"_links":{"self":[{"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/posts\/337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/comments?post=337"}],"version-history":[{"count":1,"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/posts\/337\/revisions"}],"predecessor-version":[{"id":341,"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/posts\/337\/revisions\/341"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/media\/338"}],"wp:attachment":[{"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/media?parent=337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/categories?post=337"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.andount.com\/index.php\/wp-json\/wp\/v2\/tags?post=337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}