{"id":370,"date":"2018-05-29T02:13:13","date_gmt":"2018-05-28T17:13:13","guid":{"rendered":"https:\/\/emeth.jp\/diary\/?p=370"},"modified":"2020-10-06T03:53:03","modified_gmt":"2020-10-05T18:53:03","slug":"ipv4-over-ipv6","status":"publish","type":"post","link":"https:\/\/emeth.jp\/diary\/2018\/05\/ipv4-over-ipv6\/","title":{"rendered":"\u81ea\u529b\u3067IPv4 over IPv6\u3092\u3057\u305f\uff08Tunnel\u7de8\uff09"},"content":{"rendered":"<h2>\u3053\u308c\u307e\u3067\u306e\u3042\u3089\u3059\u3058<\/h2>\n<p>\u3084\u3081\u3066\uff01So-net\u306e\u30b5\u30fc\u30d3\u30b9\u5909\u66f4\u3067\u3001MAP-E\u306av6\u30d7\u30e9\u30b9\u3092\u9069\u7528\u3055\u308c\u305f\u3089\u3001DS-lite\u3067IPv4\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u7e4b\u304c\u3063\u3066\u308bRTX1200\u306e\u7cbe\u795e\u307e\u3067\u71c3\u3048\u5c3d\u304d\u3061\u3083\u3046\uff01<br>\u304a\u9858\u3044\u3001\u6b7b\u306a\u306a\u3044\u3067\u57ce\u4e4b\u5185\uff01\u3042\u3093\u305f\u304c\u4eca\u3053\u3053\u3067\u5012\u308c\u305f\u3089\u3001\u821e\u3055\u3093\u3084\u904a\u622f\u3068\u306e\u7d04\u675f\u306f\u3069\u3046\u306a\u3063\u3061\u3083\u3046\u306e\uff1f \u30e9\u30a4\u30d5\u306f\u307e\u3060\u6b8b\u3063\u3066\u308b\u3002\u3053\u3053\u3092\u8010\u3048\u308c\u3070\u3001\u30de\u30ea\u30af\u306b\u52dd\u3066\u308b\u3093\u3060\u304b\u3089\uff01<br>\u6b21\u56de\u3001\u300cRTX1200\u6b7b\u3059\u300d\u3002\u30c7\u30e5\u30a8\u30eb\u30b9\u30bf\u30f3\u30d0\u30a4\uff01<\/p>\n<p><blockquote class=\"wp-embedded-content\" data-secret=\"ZtzNwoIL7g\"><a href=\"https:\/\/emeth.jp\/diary\/2018\/05\/yamaha-rtx1200-map-e\/\">YAMAHA RTX1200\u3067MAP-E\u3057\u305f\uff08\u3051\u3069\u3084\u3081\u305f\uff09<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;YAMAHA RTX1200\u3067MAP-E\u3057\u305f\uff08\u3051\u3069\u3084\u3081\u305f\uff09&#8221; &#8212; \u611a\u884c\u9332 the Next Generation\" src=\"https:\/\/emeth.jp\/diary\/2018\/05\/yamaha-rtx1200-map-e\/embed\/#?secret=o07blKcUVd#?secret=ZtzNwoIL7g\" data-secret=\"ZtzNwoIL7g\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p><!--more--><\/p>\n<h2>VPS\u3092\u5229\u7528\u3057\u305f\u81ea\u529bIPv4 over IPv6<\/h2>\n<p>\u5915\u65b9\u304b\u3089\u591c\u306ePPPoE\u7d4c\u7531\u306e\u901a\u4fe1\u304c\u9045\u3044\u306a\u3089\u3001\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u63d0\u4f9b\u3059\u308bIPv4 over IPv6\u304c\u4f7f\u3044\u7269\u306b\u306a\u3089\u306a\u3044\u306a\u3089\u3001\u81ea\u529b\u3067\u3084\u3063\u3066\u3057\u307e\u3048\u3070\u3044\u3044\u3058\u3083\u306a\u3044\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3084\u3063\u3066\u307f\u305f\u3002<br>\u81ea\u5b85\u3068VPS\u3068\u306e\u9593\u306bIPv6\u3067\u30c8\u30f3\u30cd\u30eb\u5f35\u3063\u3066\u3001\u305d\u306e\u4e2d\u306bIPv4\u306e\u901a\u4fe1\u3092\u901a\u3059\u306e\u3067\u3042\u308b\u3002<br>VPS\u306eOS\u306fUbuntu 18.04\u3001\u81ea\u5b85\u306e\u30eb\u30fc\u30bf\u306fYAMAHA RTX1200\u3002<\/p>\n<p>\u3068\u306f\u3044\u3048\u3001\u672c\u5f53\u306b\u81ea\u529b\u30671\u304b\u3089\u3084\u308c\u308b\u307b\u3069Linux\u306e\u4ed5\u7d44\u307f\u306b\u8a73\u3057\u3044\u308f\u3051\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u3084\u306f\u308a\u5148\u4eba\u306e\u77e5\u6075\u306b\u3059\u304c\u308b\u308f\u3051\u3067\u3042\u308b\u3002<\/p>\n<div class=\"linkcard\"><div class=\"lkc-external-wrap\"><a class=\"lkc-link no_icon\" href=\"https:\/\/www.slideshare.net\/tomocha\/vps-80212721\" data-lkc-id=\"8\" target=\"_blank\" rel=\"external noopener\"><div class=\"lkc-card\"><div class=\"lkc-info\"><div class=\"lkc-favicon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.google.com\/s2\/favicons?domain=www.slideshare.net\" alt=\"\" width=\"16\" height=\"16\" \/><\/div><div class=\"lkc-domain\">www.slideshare.net<\/div><\/div><div class=\"lkc-content\"><figure class=\"lkc-thumbnail\"><img decoding=\"async\" class=\"lkc-thumbnail-img\" src=\"https:\/\/s.wordpress.com\/mshots\/v1\/https%3A%2F%2Fwww.slideshare.net%2Ftomocha%2Fvps-80212721?w=100\" width=\"100px\" height=\"108px\" alt=\"\" \/><\/figure><div class=\"lkc-title\">\u3055\u304f\u3089\u306eVPS \u3067 IPv4 over IPv6\u30eb\u30fc\u30bf\u306e\u69cb\u7bc9<\/div><div class=\"lkc-url\" title=\"https:\/\/www.slideshare.net\/tomocha\/vps-80212721\">https:\/\/www.slideshare.net\/tomocha\/vps-80212721<\/div><div class=\"lkc-excerpt\">\u3055\u304f\u3089\u306eVPS\u3067IPv4 over IPv6 \u30eb\u30fc\u30bf\u3092\u4f5c\u3063\u3066\u307f\u305f\u3088\u3002<\/div><\/div><div class=\"clear\"><\/div><\/div><\/a><\/div><\/div>\n<p>\u3084\u308b\u3053\u3068\u306f\u4ee5\u4e0b\u306e4\u3064\u3002<\/p>\n<ul>\n<li>\u30c8\u30f3\u30cd\u30eb\u30c7\u30d0\u30a4\u30b9\u306e\u4f5c\u6210\u3068\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u8a2d\u5b9a<\/li>\n<li>\u30ab\u30fc\u30cd\u30eb\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u8a2d\u5b9a<\/li>\n<li>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a<\/li>\n<li>RTX1200\u306e\u8a2d\u5b9a<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u3092\u3001Ubuntu\u306e\u6d41\u5100\uff08systemd\uff09\u306b\u5f93\u3063\u3066\u5b9f\u65bd\u3059\u308b\u3002<\/p>\n<h3>\u30c8\u30f3\u30cd\u30eb\u30c7\u30d0\u30a4\u30b9\u306e\u4f5c\u6210\u3068\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u8a2d\u5b9a<\/h3>\n<p>\/etc\/systemd\/network \u4ee5\u4e0b\u306b.netdev\u30d5\u30a1\u30a4\u30eb\u3092\u7f6e\u304f\u3068\u30c7\u30d0\u30a4\u30b9\u304c\u4f5c\u3089\u308c\u3001.network\u30d5\u30a1\u30a4\u30eb\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8a2d\u5b9a\u304c\u3067\u304d\u308b\u3002<\/p>\n<pre><pre class=\"brush: plain; title: \/etc\/systemd\/network\/01-tun0.netdev; notranslate\" title=\"\/etc\/systemd\/network\/01-tun0.netdev\">\n&#x5B;NetDev]\nName=tun0\nKind=ip6tnl\n\n&#x5B;Tunnel]\nMode=ipip6\nLocal=\u3010VPS\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u3011\nRemote=\u3010\u30eb\u30fc\u30bf\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u3011\nEncapsulationLimit=none\n<\/pre><\/pre>\n<p>\u6700\u5f8c\u306e1\u884c(EncapsulationLimit=none)\u304c\u975e\u5e38\u306b\u91cd\u8981\uff08\u5f8c\u8ff0\uff09<\/p>\n<pre><pre class=\"brush: plain; title: \/etc\/systemd\/network\/01-tun0.network; notranslate\" title=\"\/etc\/systemd\/network\/01-tun0.network\">\n&#x5B;Match]\nName=tun0\n\n&#x5B;Route]\nDestination=\u3010\u81ea\u5b85\u5074\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3011\nScope=link\n<\/pre><\/pre>\n<p><\/p>\n<pre><pre class=\"brush: plain; title: \/etc\/systemd\/network\/00-ens3.network; notranslate\" title=\"\/etc\/systemd\/network\/00-ens3.network\">\n&#x5B;Match]\nName=ens3\n\n&#x5B;Network]\nAddress=\u3010VPS\u306eIPv4\u30a2\u30c9\u30ec\u30b9\u3011\nGateway=\u3010VPS\u306eIPv4\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3011\nDNS=\u3010VPS\u306eIPv4 DNS\u30b5\u30fc\u30d0(1)\u3011\nDNS=\u3010VPS\u306eIPv4 DNS\u30b5\u30fc\u30d0(2)\u3011\nAddress=\u3010VPS\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u3011\nGateway=\u3010VPS\u306eIPv6\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3011\nDNS=\u3010VPS\u306eIPv6 DNS\u30b5\u30fc\u30d0\u3011\nTunnel=tun0\n<\/pre><\/pre>\n<p>\u672c\u5f53\u306f\u300cTunnel=tun0\u300d\u3060\u3051\u3067\u6e08\u307e\u305b\u305f\u304b\u3063\u305f\u306e\u3060\u304c\u3001\u305d\u306e\u5834\u5408\u306a\u305c\u304bnetplan\u306e\u8a2d\u5b9a\u304c\u7121\u8996\u3055\u308c\u308b\uff08Name=ens3\u306b\u30de\u30c3\u30c1\u3057\u305f\u304b\u3089\u3053\u3061\u3089\u304c\u512a\u5148\u3055\u308c\u305f\uff1f\uff09\u306e\u3067\u3001\u3084\u3080\u306a\u304fIPv4\/v6\u30a2\u30c9\u30ec\u30b9\u7b49\u3092\u8a18\u8f09\u3057\u3066\u3044\u308b\u3002<\/p>\n<h3>\u30ab\u30fc\u30cd\u30eb\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u8a2d\u5b9a<\/h3>\n<p>IPv4\u30d1\u30b1\u30c3\u30c8\u306e\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u6709\u52b9\u306b\u3057\u3001\u5404\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u306erp filter\u3092\u7121\u52b9\u306b\u3059\u308b\u3002<br>rp filter\u304c\u6709\u52b9\u306a\u5834\u5408\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u7121\u95a2\u4fc2\u306a\u30a2\u30c9\u30ec\u30b9\u60c5\u5831\u3092\u6301\u3063\u305f\u30d1\u30b1\u30c3\u30c8\u304c\u7834\u68c4\u3055\u308c\u3066\u3057\u307e\u3046\u3089\u3057\u3044\u3002<br>\u4eca\u56detun0\u306b\u306fIP\u30a2\u30c9\u30ec\u30b9\u3092\u632f\u3063\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u30d1\u30b1\u30c3\u30c8\u3092\u7834\u68c4\u3055\u308c\u306a\u3044\u305f\u3081\u306b\u7121\u52b9\u306b\u3059\u308b\u3002<br>ens3\u3067\u3082\u7121\u52b9\u306b\u3057\u3066\u3044\u308b\u304c\u3053\u308c\u306f\u5143\u6587\u732e\u304c\u305d\u3046\u3057\u3066\u3044\u305f\u306e\u3067\u540c\u3058\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002<br>rp filter\u3092\u6709\u52b9\u306b\u3057\u305f\u5834\u5408\u306b\u672c\u5f53\u306b\u7834\u68c4\u3055\u308c\u3066\u3057\u307e\u3046\u306e\u304b\u3001\u691c\u8a3c\u306f\u3057\u3066\u3044\u306a\u3044\u3002<\/p>\n<pre><pre class=\"brush: plain; title: \/etc\/sysctl.d\/60-ipip6-tunnel.conf; notranslate\" title=\"\/etc\/sysctl.d\/60-ipip6-tunnel.conf\">\nnet.ipv4.conf.all.forwarding=1\nnet.ipv4.conf.ens3.rp_filter=0\nnet.ipv4.conf.tun0.rp_filter=0\nnet.nf_conntrack_max=65535\n<\/pre><\/pre>\n<h3>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a<\/h3>\n<pre><pre class=\"brush: plain; title: Ipv4\u306e\u8a2d\u5b9a; notranslate\" title=\"Ipv4\u306e\u8a2d\u5b9a\">\niptables -F\niptables -P INPUT DROP\niptables -P FORWARD DROP\niptables -P OUTPUT ACCEPT\niptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT\niptables -A INPUT -p icmp -j ACCEPT\niptables -A INPUT -i lo -j ACCEPT\niptables -A INPUT -i tun0 -j ACCEPT\niptables -A INPUT -p tcp -m tcp --dport 22 -m state --state NEW -j ACCEPT\niptables -A FORWARD -i tun0 -j ACCEPT\niptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT\n<\/pre><\/pre>\n<p><\/p>\n<pre><pre class=\"brush: plain; title: IPv6\u306e\u8a2d\u5b9a; notranslate\" title=\"IPv6\u306e\u8a2d\u5b9a\">\nip6tables -F\nip6tables -P INPUT DROP\nip6tables -P FORWARD DROP\nip6tables -P OUTPUT ACCEPT\nip6tables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT\nip6tables -A INPUT -p tcp -m tcp --dport 22 -m state --state NEW -j ACCEPT\nip6tables -A INPUT -s \u3010\u81ea\u5b85\u306eIPv6\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3011 -j ACCEPT\nip6tables -A INPUT -p ipv6-icmp -j ACCEPT\n<\/pre><\/pre>\n<p>IPv6\u3067\u306fICMPv6\u304c\u91cd\u8981\u306a\u5f79\u5272\u3092\u5360\u3081\u3066\u3044\u3066\u3001\u5468\u8fba\u60c5\u5831\u7b49\u304cICMPv6\u3067\u3084\u308a\u53d6\u308a\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u901a\u3057\u3066\u3084\u3089\u306a\u3044\u3068\u901a\u4fe1\u3067\u304d\u306a\u304f\u306a\u308b\u306e\u3067\u6ce8\u610f\u3002<br>22\u756a\u30dd\u30fc\u30c8\u306f\u81ea\u5b85\u4ee5\u5916\u304b\u3089\u3082\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3053\u3068\u3092\u60f3\u5b9a\u3057\u3066\u516c\u958b\u3002<br>\u3053\u308c\u3089\u3092\u8a2d\u5b9a\u3057\u305f\u5f8c\u3001iptables-persistent\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u5c0e\u5165\u3057\u3066\u8a2d\u5b9a\u3092\u56fa\u5b9a\u3002<br>iptables-persistent\u30d1\u30c3\u30b1\u30fc\u30b8\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u306b\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\u3092\u5909\u3048\u3066\u305d\u308c\u3092\u53cd\u6620\u3055\u305b\u305f\u3044\u5834\u5408\u306b\u306f\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3002<\/p>\n<pre><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\ndpkg-reconfigure iptables-persistent\n<\/pre><\/pre>\n<p>\u3053\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3001\u3084\u3063\u3066\u308b\u3053\u3068\u306fip6?tables-save\u3068ip6?tables-restore\u306a\u306e\u3067\u305d\u308c\u3067\u3067\u304d\u308b\u4eba\u306f\u305d\u308c\u3067\u3082\u69cb\u308f\u306a\u3044\u3002<\/p>\n<h3>RTX1200\u306e\u8a2d\u5b9a<\/h3>\n<p>VPS\u3068\u306e\u9593\u306b\u30c8\u30f3\u30cd\u30eb\u4f5c\u3063\u3066IPv4\u30d1\u30b1\u30c3\u30c8\u306f\u305d\u3061\u3089\u306b\u6d41\u3059\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u3060\u3051<\/p>\n<pre><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\ntunnel select 1\ntunnel encapsulation ipip\ntunnel endpoint address \u3010VPS\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u3011\nip tunnel tcp mss limit auto\ntunnel enable 1\nip route default gateway tunnel 1\n<\/pre><\/pre>\n<h2>EncapsulationLimit\u306e\u7f60<\/h2>\n<p>\u5f53\u521d\u3001\/etc\/sytemd\/network\/01-tun0.netdev\u306e\u6700\u5f8c\u306e\u300cEncapsulationLimit=none\u300d\u306e\u884c\u306f\u5165\u308c\u3066\u306a\u304b\u3063\u305f\u3002<br>\u3060\u304c\u305d\u306e\u72b6\u614b\u3060\u3068\u30c8\u30f3\u30cd\u30eb\u7d4c\u7531\u306e\u901a\u4fe1\u304c\u3046\u307e\u304f\u3044\u304b\u306a\u3044\u3002\u30d1\u30b1\u30c3\u30c8\u306f\u51fa\u3066\u3044\u304f\u304c\u623b\u308a\u304c\u306a\u3044\u3002<br>VPS\u5074\u3067\u898b\u3066\u307f\u308b\u3068\u30d1\u30b1\u30c3\u30c8\u306f\u6295\u3052\u8fd4\u3057\u3066\u3044\u308b\u3088\u3046\u3060\u3063\u305f\u306e\u3067\u3001\u30eb\u30fc\u30bf\u3067\u4f55\u304b\u304c\u8d77\u304d\u3066\u3044\u308b\u3068\u601d\u3063\u3066\u30eb\u30fc\u30bf\u306e\u30ed\u30b0\u3092\u898b\u3066\u307f\u305f\u3002<\/p>\n<pre><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&#x5B;IPv6] received malformed option from \u3010VPS\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u3011\n&#x5B;IPv6] received malformed option from \u3010VPS\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u3011\n&#x5B;IPv6] received malformed option from \u3010VPS\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u3011\n...\n<\/pre><\/pre>\n<p>\u30d1\u30b1\u30c3\u30c8\u304c\u5909\u3060\u3068\u8a00\u308f\u308c\u3066\u3044\u308b\u3002VPS\u3067\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u3066\u307f\u305f\u7d50\u679c\u304c\u3053\u3061\u3089\u3002<br>8.8.8.8\u306b\u5bfe\u3059\u308bping\u3068\u305d\u306e\u5fdc\u7b54\u3002192.168.100.4\u306f\u81ea\u5b85\u30de\u30b7\u30f3\u3002<\/p>\n<p><a href=\"https:\/\/emeth.jp\/diary\/wp-content\/uploads\/2018\/05\/screenshot.0013.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-388\" src=\"https:\/\/emeth.jp\/diary\/wp-content\/uploads\/2018\/05\/screenshot.0013.png\" alt=\"\" width=\"899\" height=\"906\"><\/a><\/p>\n<p>\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u30eb\u30fc\u30bf\u3067\u7834\u68c4\u3055\u308c\u308b\u5b9a\u3081\u306e\u5fdc\u7b54\u30d1\u30b1\u30c3\u30c8\u3002<br>IPv6\u30d8\u30c3\u30c0\u5185\u306eNext Header\u304cDestination Options for IPv6 (60)\u3068\u306a\u3063\u3066\u304a\u308a\u3001Tunnel Encapsulation Limit\u306e\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002<br>\u305d\u3057\u3066\u305d\u306e\u4e2d\u306eNext Header\u306fIPIP (4)\u3067\u3001IP\u30d8\u30c3\u30c0\u304c\u7d9a\u304f\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u3002<br>ping\u9001\u4fe1\u306e\u30d1\u30b1\u30c3\u30c8\u306fDestination Options for IPv6 (60)\u306f\u306a\u304f\u3001IPv6\u30d8\u30c3\u30c0\u5185\u306eNext Header\u306fIPIP (4)\u3068\u306a\u3063\u3066\u3044\u305f\u3002<br>IP\u30d1\u30b1\u30c3\u30c8\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u306f\u5165\u308c\u5b50\u304c\u53ef\u80fd\u3067\u3042\u308a\u3001Tunnel Encapsulation Limit\u306f\u305d\u306e\u4e0a\u9650\u3092\u8868\u3057\u3066\u3044\u308b\uff08<a href=\"http:\/\/www5d.biglobe.ne.jp\/~stssk\/nro\/rfc2473.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u53c2\u8003\uff1aRFC2473<\/a>\uff09\u3002<br>\u4e0a\u9650\u3092\u793a\u3059\u305f\u3081\u306b\u3053\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3042\u308b\u306e\u3060\u304c\u3001\u6b8b\u5ff5\u306a\u3053\u3068\u306bRTX1200\u3067\u306f\u3053\u308c\u3092malformed\u3068\u3057\u3066\u6271\u3063\u3066\u3057\u307e\u3046\u3088\u3046\u3060\u3002<\/p>\n<p>\u8abf\u3079\u3066\u307f\u308b\u3068\u3001\u3053\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3064\u3044\u3066\u3044\u308b\u30d1\u30b1\u30c3\u30c8\u3092\u691c\u51fa\u3059\u308bIPS\u30b7\u30b0\u30cd\u30c1\u30e3\u304c\u3042\u308b\u3088\u3046\u3060\u3002<\/p>\n<div class=\"linkcard\"><div class=\"lkc-external-wrap\"><div class=\"lkc-unlink\"><div class=\"lkc-card\"><div class=\"lkc-info\"><div class=\"lkc-favicon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.google.com\/s2\/favicons?domain=www.cisco.com\" alt=\"\" width=\"16\" height=\"16\" \/><\/div><div class=\"lkc-domain\">Cisco<\/div><\/div><div class=\"lkc-content\"><figure class=\"lkc-thumbnail\"><img decoding=\"async\" class=\"lkc-thumbnail-img\" src=\"https:\/\/s.wordpress.com\/mshots\/v1\/https%3A%2F%2Fwww.cisco.com%2Fc%2Fja_jp%2Fsupport%2Fdocs%2Fips-signatures%2F2008%2Fips-signature-1725-0.html?w=100\" width=\"100px\" height=\"108px\" alt=\"\" \/><\/figure><div class=\"lkc-title\">IPv6 Tunnel Encapsulation Limit Option Set<\/div><div class=\"lkc-url\" title=\"https:\/\/www.cisco.com\/c\/ja_jp\/support\/docs\/ips-signatures\/2008\/ips-signature-1725-0.html\"><strike>https:\/\/www.cisco.com\/c\/ja_jp\/support\/docs\/ips-signatures\/2008\/ips-signature-1725-0.html<\/strike><\/div><div class=\"lkc-excerpt\">\u5b9b\u5148 \u30c8\u30f3\u30cd\u30eb\u30ab\u30d7\u30bb\u30eb\u5316\u5236\u9650\u30aa\u30d7\u30b7\u30e7\u30f3 \u30d8\u30c3\u30c0\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u306e\u30b7\u30b0\u30cb\u30c1\u30e3\u306f IPv6 \u30d1\u30b1\u30c3\u30c8\u3092\u691c\u51fa\u3059\u308b<\/div><\/div><div class=\"clear\"><\/div><\/div><\/div><\/div><\/div>\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u30aa\u30d5\u306a\u3088\u3046\u3060\u304c\u3001RFC2473\u3067\u898f\u5b9a\u3055\u308c\u3066\u3044\u308b\u901a\u5e38\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u691c\u51fa\u3059\u308b\u3068\u304b\u304a\u524d\u306f\u4f55\u3092\u8a00\u3063\u3066\u3044\u308b\u3093\u3060\uff08RTX1200\u3082\u3060\u304c\uff09\u3002<\/p>\n<p>\u9591\u8a71\u4f11\u984c\u3002<br>Linux\u306e\u30c8\u30f3\u30cd\u30eb\u30c7\u30d0\u30a4\u30b9\u3067\u306fTunnel Encapsulation Limit\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u304cRFC\u3067\u63a8\u5968\u3055\u308c\u3066\u3044\u308b4\u3068\u306a\u3063\u3066\u3044\u308b\u3002<br>\u3053\u308c\u3092none\u306b\u3059\u308b\u3053\u3068\u3067\u53d7\u4fe1\u3057\u305f\u30d1\u30b1\u30c3\u30c8\u306b\u524d\u8ff0\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3064\u3044\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u623b\u308a\u30d1\u30b1\u30c3\u30c8\u306b\u3082\u3064\u3051\u306a\u3044\u3088\u3046\u306b\u3067\u304d\u308b\u3002<br>\u3053\u306e\u8a2d\u5b9a\u3092\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30c8\u30f3\u30cd\u30eb\u304c\u6b63\u5e38\u306b\u6a5f\u80fd\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002<\/p>\n<h2>\u304a\u308f\u308a\u306b<\/h2>\n<p>PPPoE\u3092\u7d4c\u7531\u3057\u306a\u3044\u3068\u901f\u304f\u3066\u5feb\u9069\u3067\u3042\u308b\u3002\u307f\u3093\u306a\u3082\u65e9\u304f\u3053\u3063\u3061\u306b\u304a\u3044\u3067\u3088\u3002<\/p>\n<h2>\u304a\u308f\u3073<\/h2>\n<p>\u6b21\u56de\u306b\u4e88\u5b9a\u3057\u3066\u3044\u305fIPsec\u7de8\u306f\u3001IPsec\u3067\u306e\u30c8\u30f3\u30cd\u30eb\u304c\u3046\u307e\u304f\u4f5c\u308c\u306a\u3044\u305f\u3081\u7121\u671f\u9650\u5ef6\u671f\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u308c\u307e\u3067\u306e\u3042\u3089\u3059\u3058 \u3084\u3081\u3066\uff01So-net\u306e\u30b5\u30fc\u30d3\u30b9\u5909\u66f4\u3067\u3001MAP-E\u306av6\u30d7\u30e9\u30b9\u3092\u9069\u7528\u3055\u308c\u305f\u3089\u3001DS-lite\u3067IPv4\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u7e4b\u304c\u3063\u3066\u308bRTX1200\u306e\u7cbe\u795e\u307e\u3067\u71c3\u3048\u5c3d\u304d\u3061\u3083\u3046\uff01\u304a\u9858\u3044\u3001\u6b7b\u306a\u306a\u3044\u3067\u57ce\u4e4b\u5185\uff01\u3042\u3093\u305f\u304c\u4eca [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"cybocfi_hide_featured_image":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-370","post","type-post","status-publish","format-standard","hentry","category-1"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/posts\/370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/comments?post=370"}],"version-history":[{"count":28,"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/posts\/370\/revisions"}],"predecessor-version":[{"id":664,"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/posts\/370\/revisions\/664"}],"wp:attachment":[{"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/media?parent=370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/categories?post=370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/emeth.jp\/diary\/wp-json\/wp\/v2\/tags?post=370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}