{"height":"190","blog_url":"https://blog.ichikaway.com/","url":"https://blog.ichikaway.com/entry/ip-router-nazo","author_url":"https://blog.hatena.ne.jp/ichikaway/","type":"rich","categories":[],"published":"2025-09-17 23:32:21","title":"\u81ea\u4f5cIP\u30eb\u30fc\u30bf\u30fc\u3092\u5b9f\u88c5\u3057\u3066\u898b\u3048\u305f\u3001tcpdump\u306b\u6620\u3089\u306a\u3044\u30ab\u30fc\u30cd\u30eb\u5185\u90e8\u306e\u4e16\u754c","author_name":"ichikaway","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.ichikaway.com%2Fentry%2Fip-router-nazo\" title=\"\u81ea\u4f5cIP\u30eb\u30fc\u30bf\u30fc\u3092\u5b9f\u88c5\u3057\u3066\u898b\u3048\u305f\u3001tcpdump\u306b\u6620\u3089\u306a\u3044\u30ab\u30fc\u30cd\u30eb\u5185\u90e8\u306e\u4e16\u754c - Code Day&#39;s Night\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","version":"1.0","description":"\u73fe\u5728PHP\u3067IP\u30eb\u30fc\u30bf\u30fc\u3092\u4f5c\u308a\u59cb\u3081\u3066\u3044\u307e\u3059\u3002\u7c21\u5358\u306a\u3082\u306e\u3092\u5b9f\u88c5\u3057\u3066ping\u304c\u901a\u308b\u3068\u3053\u308d\u307e\u3067\u5b8c\u6210\u3057\u307e\u3057\u305f\u3002 \u3046\u304a\u3049\u3049\uff01\uff01\uff01 PHP\u3067\u81ea\u4f5cIP\u30eb\u30fc\u30bf\uff08\u7c21\u6613\u7248\uff09\u304c\u52d5\u3044\u305f\uff01alice -> router(PHP) -> bob \u3067alice\u304b\u3089\u306eping\u304c\u901a\u3063\u305f\u30fc\ud83c\udf89\u3061\u3087\u3063\u3068\u306f\u307e\u3063\u3066tcpdump\u3057\u3066\u305f\u308a\u3067\u89e3\u6c7a\u3057\u3066\u52d5\u3044\u305f\u306e\u3067\u611f\u52d5\u304c\u5927\u304d\u304b\u3063\u305f\u3002 https://t.co/ylim9VpKF2 \u2014 cakephper ichikawa (@cakephper) 2025\u5e749\u670810\u65e5 \u6b21\u306bUDP\u30d1\u30b1\u30c3\u30c8\u3092\u30eb\u30fc\u30bf\u30fc\u306b\u901a\u3057\u3066\u307f\u305f\u3068\u3053\u308d\u3001\u306a\u305c\u304b\u3046\u307e\u304f\u3044\u304b\u306a\u3044\u73fe\u8c61\u304c\u767a\u751f\u3057\u30011\u9031\u9593\u4ee5\u4e0a\u8abf\u67fb\u3057\u305f\u7d50\u679c\u304a\u3082\u3057\u308d\u3044\u73fe\u8c61\u3060\u3063\u305f\u306e\u3067\u2026","width":"100%","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/i/ichikaway/20250917/20250917222437.png","blog_title":"Code Day's Night"}