{"id":246,"date":"2024-01-25T12:48:31","date_gmt":"2024-01-25T04:48:31","guid":{"rendered":"http:\/\/blog.940611.xyz\/?p=246"},"modified":"2024-01-25T12:59:37","modified_gmt":"2024-01-25T04:59:37","slug":"linux%e4%b8%8bipv4-ipv6%e5%8f%8c%e6%a0%88%e6%8e%a5%e5%85%a5%ef%bc%8c%e4%bd%bf%e7%94%a8ipv4%e8%bf%9e%e6%8e%a5%e4%bc%98%e5%85%88%e8%ae%be%e7%bd%ae%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/blog.940611.xyz\/?p=246","title":{"rendered":"Linux\u4e0bIPv4\/IPv6\u53cc\u6808\u63a5\u5165\uff0c\u4f7f\u7528IPv4\u8fde\u63a5\u4f18\u5148\u8bbe\u7f6e\u6559\u7a0b"},"content":{"rendered":"\n<p>\u867d\u7136\u76ee\u524d\u5f88\u591a\u7f51\u7ad9\u6216\u670d\u52a1\u90fd\u5df2\u7ecf\u589e\u52a0IPv6\uff0c\u4f46\u662f\u5404\u5bb6\u7684IPv6\u4f7f\u7528\u4e0a\u5e76\u4e0d\u4e00\u5b9a\u7545\u901a\u3002\u6240\u4ee5\u6211\u4eec\u8981\u8bbe\u7f6e\u4e00\u4e0b\u8ba9IPv4\u4f5c\u4e3a\u9ed8\u8ba4\u7684\u8fde\u63a5\u65b9\u5f0f\u3002\u4f46\u662f\u6839\u636eRFC3484\u534f\u8baeLinux\u9ed8\u8ba4\u60c5\u51b5\u4e0bIPv6\u4f18\u5148\u7ea7\u9ad8\u4e8eIPv4\uff0c\u5e94\u7528\u7a0b\u5e8f\u4f18\u5148\u4f7f\u7528IPv6\u5730\u5740\u3002<\/p>\n\n\n\n<p><strong>1\u3001\u5982\u679c\u8981\u4f7f\u7528ipv4\u8fde\u63a5\u4f18\u5148\u4e5f\u4e0d\u7981\u7528ipv6\uff0c\u9700\u8981\u4fee\u6539gai.conf\u914d\u7f6e\u6587\u4ef6\u4f7f\u5176\u751f\u6548\u3002<\/strong><\/p>\n\n\n\n<p>\u7f16\u8f91 \/etc\/gai.conf \u6587\u4ef6\uff0c\u67e5\u627e precedence ::ffff:0:0\/96 100 \u5c06\u524d\u9762\u7684\u6ce8\u91ca # \u53bb\u6389\u5e76\u4fdd\u5b58\uff0c\u5982\u679c\u524d\u9762\u6ca1\u6709 # \u53f7\u8868\u793a\u5df2\u7ecf\u66f4\u6539\u8fc7\u8bbe\u7f6e\u4e86\u3002\u5982\u679c\u6ca1\u6709\u67e5\u627e\u5230\u8be5\u884c\u76f4\u63a5\u5728\u6587\u4ef6\u672b\u5c3e\u6dfb\u52a0\u4e0a<\/p>\n\n\n\n<p>precedence ::ffff:0:0\/96 100<\/p>\n\n\n\n<p>CentOS\u9ed8\u8ba4\u6ca1\u6709 \/etc\/gai.conf&nbsp; \u8be5\u6587\u4ef6\uff0c\u53ef\u4ee5\u6267\u884c\u547d\u4ee4<br>cp -p \/usr\/share\/doc\/glibc-common-2.17\/gai.conf \/etc\/<br>\u62f7\u8d1d\u8be5\u6587\u4ef6\u540e\u4fee\u6539\u3002<\/p>\n\n\n\n<p>\u4fee\u6539\u5b8c\u6210\u4fdd\u5b58\u751f\u6548\u3002\u8fd9\u6837\u8bbe\u7f6e\u540e\u6709IPv4\u7684\u8bdd\u4f18\u5148\u4f7f\u7528IPv4\uff0c\u4e5f\u4e0d\u5f71\u54cdIPv6\u7684\u4f7f\u7528\u3002<\/p>\n\n\n\n<p>\u6ce8\uff1a::ffff:0:0\/96 \u4e3aIPv4\/IPv6\u8f6c\u6362\u5730\u5740 (IPv4-mapped IPv6 address)\u3002<\/p>\n\n\n\n<p><strong>2\u3001\u5982\u679c\u786e\u5b9e\u4e0d\u9700\u8981IPv6\uff0c\u6211\u4eec\u53ef\u4ee5\u7981\u7528IPv6<\/strong><\/p>\n\n\n\n<p>\u6267\u884c\u547d\u4ee4\uff1aecho &#8220;1&#8221; > \/proc\/sys\/net\/ipv6\/conf\/all\/disable_ipv6<br>\u8fd9\u6837\u5c31\u6389\u4e86\u7981\u7528ipv6<\/p>\n\n\n\n<p>\u5982\u9700\u6062\u590d\u7684\u8bdd\uff1aecho &#8220;0&#8221; > \/proc\/sys\/net\/ipv6\/conf\/all\/disable_ipv6<\/p>\n\n\n\n<p>\u6216\u8005\uff1anano \/proc\/sys\/net\/ipv6\/conf\/all\/disable_ipv6<\/p>\n\n\n\n<p>\u5c06\u503c\u4ece1\u66f4\u6539\u4e3a0<\/p>\n\n\n\n<p>\u7136\u540e\u91cd\u542f\u5c31\u53ef\u4ee5\u4e86<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u7b2c\u4e8c\u4e2a\u6559\u7a0b\uff0c\u57fa\u672c\u76f8\u540c\uff0c\u4ec5\u6709IPV6\u7981\u7528\u4e0d\u540c<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u5728 Debian \u7b49 Linux \u7cfb\u7edf\u4e0b\uff0c\u6709\u4e00\u4e2a&nbsp;<code>\/etc\/gai.conf<\/code>&nbsp;\u6587\u4ef6\uff0c\u7528\u4e8e\u7cfb\u7edf\u7684&nbsp;<code>getaddrinfo<\/code>&nbsp;\u8c03\u7528\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5b83\u4f1a\u4f7f\u7528 IPv6 \u4f18\u5148\uff0c\u5982\u679c\u60a8\u5b89\u88c5\u4e86&nbsp;<code>curl<\/code>&nbsp;\u5e76\u4e14\u672c\u5730\u652f\u6301 IPv6\uff0c\u90a3\u4e48\u53ef\u4ee5\u4f7f\u7528&nbsp;<code>curl ip.sb<\/code>&nbsp;\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@debian ~ # curl ip.sb\n2001:db8::2\n<\/code><\/pre>\n\n\n\n<p>\u6548\u679c\u7b49\u540c\u4e8e&nbsp;<code>curl ip.sb -6<\/code><\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u4e0d\u60f3\u4f7f\u7528 IPv6 \u4f18\u5148\uff0c\u53ef\u4ee5\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d\u627e\u5230\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#precedence ::ffff:0:0\/96  100\n<\/code><\/pre>\n\n\n\n<p>\u53d6\u6d88\u6ce8\u91ca\uff0c\u4fee\u6539\u4e3a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>precedence ::ffff:0:0\/96  100\n<\/code><\/pre>\n\n\n\n<p>\u4e00\u53e5\u8bdd\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sed -i 's\/#precedence ::ffff:0:0\\\/96  100\/precedence ::ffff:0:0\\\/96  100\/' \/etc\/gai.conf\n<\/code><\/pre>\n\n\n\n<p>\u6b64\u65f6\u518d\u4f7f\u7528&nbsp;<code>curl ip.sb<\/code>&nbsp;\u6d4b\u8bd5<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@debian ~ # curl ip.sb\n192.0.2.2\n<\/code><\/pre>\n\n\n\n<p>\u6548\u679c\u7b49\u540c\u4e8e&nbsp;<code>curl ip.sb -4<\/code><\/p>\n\n\n\n<p>\u6709\u65f6\u5019\u53c8\u4f1a\u9700\u8981\u5f3a\u5236 IPv6 \u4f18\u5148 (\u600e\u4e48\u6709\u4e9b\u7cfb\u7edf\u548c\u7528\u6237\u90a3\u4e48\u5947\u602a\uff1f)\uff0c\u56e0\u4e3a\u76ee\u524d IANA \u5206\u914d\u7684\u516c\u7f51 IPv6 \u8fd8\u672a\u8fdb\u884c\u5230&nbsp;<code>3000:0000::\/4<\/code>\uff0c\u6240\u4ee5\u6211\u4eec\u53ea\u8981\u628a\u8fd9\u6bb5\u4e4b\u524d\u7684 IPv6 \u52a0\u5230\u4f18\u5148\u7ea7\u5217\u8868\u5373\u53ef\uff0c\u52a0\u5165\u8fd9\u4e24\u884c&nbsp;<code>label<\/code>&nbsp;\u7684\u4f18\u5148\u7ea7\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>label 2002::\/16    1\nlabel 2001:0::\/32   1\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u7981\u7528-ipv6\">\u7981\u7528 IPv6<\/h2>\n\n\n\n<p>\u6709\u4e00\u4e9b\u6781\u7aef\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u7981\u6b62\u7cfb\u7edf\u7684 IPv6 \u529f\u80fd\uff0c\u8fd9\u65f6\u5019\u5c31\u9700\u8981\u4fee\u6539&nbsp;<code>\/etc\/sysctl.conf<\/code>&nbsp;\u6587\u4ef6\uff0c\u9996\u5148\u627e\u5230\u4f60\u7684\u7f51\u5361\u540d\u79f0\uff0c\u8fd9\u91cc\u4ee5&nbsp;<code>eth0<\/code>&nbsp;\u4e3a\u4f8b\uff0c\u7136\u540e\u52a0\u5165\u5982\u4e0b\u5185\u5bb9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>net.ipv6.conf.all.autoconf = 0\nnet.ipv6.conf.default.autoconf = 0\nnet.ipv6.conf.all.accept_ra = 0\nnet.ipv6.conf.default.accept_ra = 0\nnet.ipv6.conf.all.disable_ipv6 = 1\nnet.ipv6.conf.default.disable_ipv6 = 1\nnet.ipv6.conf.lo.disable_ipv6 = 1\nnet.ipv6.conf.eth0.disable_ipv6 = 1\n<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u9700\u8981\u5176\u4ed6\u7f51\u5361\u5219\u66f4\u6539\u6216\u6dfb\u52a0&nbsp;<code>net.ipv6.conf.eth0.disable_ipv6 = 1<\/code>&nbsp;\u5373\u53ef\u3002<\/p>\n\n\n\n<p>\u4e00\u53e5\u8bdd\u547d\u4ee4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cat >> \/etc\/sysctl.conf &lt;&lt; EOF\nnet.ipv6.conf.all.autoconf = 0\nnet.ipv6.conf.default.autoconf = 0\nnet.ipv6.conf.all.accept_ra = 0\nnet.ipv6.conf.default.accept_ra = 0\nnet.ipv6.conf.all.disable_ipv6 = 1\nnet.ipv6.conf.default.disable_ipv6 = 1\nnet.ipv6.conf.lo.disable_ipv6 = 1\nnet.ipv6.conf.eth0.disable_ipv6 = 1\nEOF\n<\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f&nbsp;<code>cat<\/code>&nbsp;\u547d\u4ee4\u540e\u7684&nbsp;<code>&gt;&gt;<\/code>&nbsp;\u5373\u4e3a\u6dfb\u52a0\u6587\u4ef6\u5185\u5bb9\uff0c\u5982\u679c\u4f7f\u7528&nbsp;<code>&gt;<\/code>&nbsp;\u5219\u662f\u8986\u76d6\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n\n\n\n<p>\u7136\u540e\u4f7f\u7528&nbsp;<code>sysctl -p<\/code>&nbsp;\u6765\u91cd\u65b0\u52a0\u8f7d\u914d\u7f6e\u6587\u4ef6\uff0c\u6b64\u65f6\u67e5\u770b&nbsp;<code>ip a<\/code>&nbsp;\u5c31\u53ef\u4ee5\u53d1\u73b0 IPv6 \u5df2\u7ecf\u88ab\u7981\u6b62\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u867d\u7136\u76ee\u524d\u5f88\u591a\u7f51\u7ad9\u6216\u670d\u52a1\u90fd\u5df2\u7ecf\u589e\u52a0IPv6\uff0c\u4f46\u662f\u5404\u5bb6\u7684IPv6\u4f7f\u7528\u4e0a\u5e76\u4e0d\u4e00\u5b9a\u7545\u901a\u3002\u6240\u4ee5\u6211\u4eec\u8981\u8bbe\u7f6e\u4e00\u4e0b\u8ba9IPv4\u4f5c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-246","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=\/wp\/v2\/posts\/246","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=246"}],"version-history":[{"count":2,"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=\/wp\/v2\/posts\/246\/revisions"}],"predecessor-version":[{"id":248,"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=\/wp\/v2\/posts\/246\/revisions\/248"}],"wp:attachment":[{"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.940611.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}