{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftrema.hatenablog.jp%2Fentry%2F20120413%2F1334325398\" title=\" C \u8a00\u8a9e\u3067 Match \u3092\u66f8\u304f (\u305d\u306e1) - \u4eca\u65e5\u3082\u79cb\u7530\u3067 IoT\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/kazuya_ax/","published":"2012-04-13 22:56:38","blog_url":"https://trema.hatenablog.jp/","provider_url":"https://hatena.blog","image_url":null,"blog_title":"\u4eca\u65e5\u3082\u79cb\u7530\u3067 IoT","height":"190","description":"\u4eca\u56de\u306f\u3001C \u8a00\u8a9e\u3067 Match \u3092\u66f8\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u9001\u4fe1\u5143 IP \u30a2\u30c9\u30ec\u30b9 192.168.1.0/24\u3001\u5b9b\u5148 IP \u30a2\u30c9\u30ec\u30b9 192.168.2.0/24 \u3068\u30de\u30c3\u30c1\u3055\u305b\u308b Flow_mod \u3092\u8a2d\u5b9a\u3059\u308b\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 \u30dd\u30a4\u30f3\u30c8\u306f\u4e8c\u70b9\u3067\u3059\u3002 \u5b9b\u5148 IP \u30a2\u30c9\u30ec\u30b9\u3092\u30de\u30c3\u30c1\u6761\u4ef6\u306b\u7528\u3044\u308b\u5834\u5408\u306b\u306f\u3001dl_type = 0x0800 \u3082\u30de\u30c3\u30c1\u6761\u4ef6\u3068\u3057\u3066\u7528\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059(\u8a73\u3057\u304f\u306f\u3053\u3053)\u3002 \u4ee5\u524d\u8aac\u660e\u3057\u305f\u3088\u3046\u306b\u3001\u4eca\u56de\u306e\u30b1\u30fc\u30b9\u3067\u306f wildcard \u306f 11,0010,0000,1000,1110,1111b = 0x3208ef \u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002nw_src, nw_dst \u306e\u2026","url":"https://trema.hatenablog.jp/entry/20120413/1334325398","author_name":"kazuya_ax","title":" C \u8a00\u8a9e\u3067 Match \u3092\u66f8\u304f (\u305d\u306e1)","provider_name":"Hatena Blog","version":"1.0","type":"rich","categories":["trema"],"width":"100%"}