{"provider_name":"Hatena Blog","url":"https://higepon.hatenablog.com/entry/20090711/1247324008","version":"1.0","published":"2009-07-11 23:53:28","image_url":null,"provider_url":"https://hatena.blog","type":"rich","blog_url":"https://higepon.hatenablog.com/","author_name":"higepon","categories":["mona"],"height":"190","author_url":"https://blog.hatena.ne.jp/higepon/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhigepon.hatenablog.com%2Fentry%2F20090711%2F1247324008\" title=\" \u554f\u984c\u306f TAP \u304b\u3082 - \u30d1\u30b1\u30c3\u30c8\u9045\u5ef6\u554f\u984c - higepon blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":" \u554f\u984c\u306f TAP \u304b\u3082 - \u30d1\u30b1\u30c3\u30c8\u9045\u5ef6\u554f\u984c","blog_title":"higepon blog","description":"ICMP \u30d1\u30b1\u30c3\u30c8\u306e sequence number \u3092\u624b\u304c\u304b\u308a\u306b\u8ffd\u3063\u3066\u307f\u305f\u3002 Mona \u304c ICMP Request \u53d7\u4fe1 Mona \u304c ICMP Reply \u9001\u4fe1 QEMU(virtio-net)\u304c\u30d1\u30b1\u30c3\u30c8\u9001\u4fe1 QEMU \u304c tap \u30c7\u30d0\u30a4\u30b9\u306b writev \u3059\u308b \u307e\u3067\u307b\u307c\u4e00\u606f\u306b\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u3063\u305f\u3002 \u3068\u3053\u308d\u304c tcpdump \u306e\u51fa\u529b\u4e0a\u306f ICMP Request/Reply \u306e\u9593\u306b 1000 msec \u3082\u304b\u304b\u3063\u3066\u3044\u308b\u3002 \u3068\u3044\u3046\u3053\u3068\u3067 Mona\uff08virtio-net \u30c9\u30e9\u30a4\u30d0\u3001uIP\uff09 \u3082 QEMU\u3082\u60aa\u304f\u306a\u304f\u3066\u3001\u72af\u4eba\u306f TAP \u306e\u3088\u3046\u3060\u3002\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u3055\u308c\u3061\u3083\u3063\u3066\u3044\u308b\u3093\u304b\u306a\u3042\u3002 L\u2026","width":"100%"}