{"id":44156,"date":"2024-10-06T13:20:12","date_gmt":"2024-10-06T05:20:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44156\/"},"modified":"2024-10-06T13:20:13","modified_gmt":"2024-10-06T05:20:13","slug":"centos-%e4%b8%8b-gre-%e9%9a%a7%e9%81%93%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44156\/","title":{"rendered":"CentOS \u4e0b GRE \u96a7\u9053\u914d\u7f6e"},"content":{"rendered":"<h1 id=\"centos-%e4%b8%8b-gre-%e9%9a%a7%e9%81%93%e9%85%8d%e7%bd%ae-UBQysmkYSC\">CentOS \u4e0b GRE \u96a7\u9053\u914d\u7f6e<\/h1>\n<p>GRE\uff08Generic Routing Encapsulation\uff09\u662f\u4e00\u79cd\u96a7\u9053\u534f\u8bae\uff0c\u5141\u8bb8\u5c06\u591a\u79cd\u7f51\u7edc\u5c42\u534f\u8bae\u5c01\u88c5\u5728\u70b9\u5bf9\u70b9\u8fde\u63a5\u4e2d\u3002\u5b83\u5e38\u7528\u4e8e\u521b\u5efa\u865a\u62df\u4e13\u7528\u7f51\u7edc\uff08VPN\uff09\uff0c\u5b9e\u73b0\u4e0d\u540c\u7f51\u7edc\u4e4b\u95f4\u7684\u5b89\u5168\u901a\u4fe1\u3002\u5728\u672c\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55\u5728 CentOS \u7cfb\u7edf\u4e0a\u914d\u7f6e GRE \u96a7\u9053\u3002<\/p>\n<h2 id=\"gre-%e9%9a%a7%e9%81%93%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-UBQysmkYSC\">GRE \u96a7\u9053\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>GRE \u96a7\u9053\u901a\u8fc7\u5c06\u6570\u636e\u5305\u5c01\u88c5\u5728 GRE \u6570\u636e\u5305\u4e2d\uff0c\u5141\u8bb8\u4e0d\u540c\u7684\u7f51\u7edc\u534f\u8bae\u5728 IP \u7f51\u7edc\u4e0a\u8fdb\u884c\u4f20\u8f93\u3002GRE \u96a7\u9053\u7684\u4e3b\u8981\u4f18\u70b9\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u652f\u6301\u591a\u79cd\u534f\u8bae\uff1aGRE \u53ef\u4ee5\u5c01\u88c5\u591a\u79cd\u7f51\u7edc\u5c42\u534f\u8bae\uff0c\u5982 IPv4\u3001IPv6\u3001AppleTalk \u7b49\u3002<\/li>\n<li>\u7b80\u5316\u7f51\u7edc\u62d3\u6251\uff1a\u901a\u8fc7 GRE \u96a7\u9053\uff0c\u53ef\u4ee5\u5c06\u4e0d\u540c\u7684\u7f51\u7edc\u8fde\u63a5\u5728\u4e00\u8d77\uff0c\u5f62\u6210\u4e00\u4e2a\u903b\u8f91\u4e0a\u7684\u7f51\u7edc\u3002<\/li>\n<li>\u7075\u6d3b\u6027\uff1aGRE \u96a7\u9053\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u7269\u7406\u7f51\u7edc\u4e4b\u95f4\u5efa\u7acb\u8fde\u63a5\uff0c\u9002\u7528\u4e8e\u591a\u79cd\u5e94\u7528\u573a\u666f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9c%a8-centos-%e4%b8%8a%e9%85%8d%e7%bd%ae-gre-%e9%9a%a7%e9%81%93-UBQysmkYSC\">\u5728 CentOS \u4e0a\u914d\u7f6e GRE \u96a7\u9053<\/h2>\n<p>\u4ee5\u4e0b\u662f\u914d\u7f6e GRE \u96a7\u9053\u7684\u6b65\u9aa4\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e24\u53f0 CentOS \u670d\u52a1\u5668\uff0c\u5206\u522b\u4e3a Server A \u548c Server B\uff0c\u5b83\u4eec\u7684 IP \u5730\u5740\u5206\u522b\u4e3a 192.168.1.1 \u548c 192.168.1.2\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%aa%a4-1%ef%bc%9a%e5%90%af%e7%94%a8-ip-%e8%bd%ac%e5%8f%91-UBQysmkYSC\">\u6b65\u9aa4 1\uff1a\u542f\u7528 IP \u8f6c\u53d1<\/h3>\n<p>\u5728\u4e24\u53f0\u670d\u52a1\u5668\u4e0a\uff0c\u9996\u5148\u9700\u8981\u542f\u7528 IP \u8f6c\u53d1\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5b9e\u73b0\uff1a<\/p>\n<pre><code>echo \"1\" &gt; \/proc\/sys\/net\/ipv4\/ip_forward<\/code><\/pre>\n<p>\u4e3a\u4e86\u4f7f\u8bbe\u7f6e\u5728\u91cd\u542f\u540e\u4f9d\u7136\u6709\u6548\uff0c\u53ef\u4ee5\u7f16\u8f91 \/etc\/sysctl.conf \u6587\u4ef6\uff0c\u6dfb\u52a0\u6216\u4fee\u6539\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>net.ipv4.ip_forward = 1<\/code><\/pre>\n<p>\u7136\u540e\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u4f7f\u66f4\u6539\u751f\u6548\uff1a<\/p>\n<pre><code>sysctl -p<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%aa%a4-2%ef%bc%9a%e9%85%8d%e7%bd%ae-gre-%e9%9a%a7%e9%81%93-UBQysmkYSC\">\u6b65\u9aa4 2\uff1a\u914d\u7f6e GRE \u96a7\u9053<\/h3>\n<p>\u5728 Server A \u4e0a\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u521b\u5efa GRE \u96a7\u9053\uff1a<\/p>\n<pre><code>ip tunnel add gre1 mode gre remote 192.168.1.2 local 192.168.1.1 ttl 255<\/code><\/pre>\n<p>\u63a5\u7740\uff0c\u542f\u52a8 GRE \u96a7\u9053\uff1a<\/p>\n<pre><code>ip link set gre1 up<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u4e3a GRE \u96a7\u9053\u5206\u914d\u4e00\u4e2a IP \u5730\u5740\uff1a<\/p>\n<pre><code>ip addr add 10.0.0.1\/30 dev gre1<\/code><\/pre>\n<p>\u5728 Server B \u4e0a\uff0c\u6267\u884c\u7c7b\u4f3c\u7684\u547d\u4ee4\uff1a<\/p>\n<pre><code>ip tunnel add gre1 mode gre remote 192.168.1.1 local 192.168.1.2 ttl 255<\/code><\/pre>\n<pre><code>ip link set gre1 up<\/code><\/pre>\n<pre><code>ip addr add 10.0.0.2\/30 dev gre1<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%aa%a4-3%ef%bc%9a%e6%b5%8b%e8%af%95-gre-%e9%9a%a7%e9%81%93-UBQysmkYSC\">\u6b65\u9aa4 3\uff1a\u6d4b\u8bd5 GRE \u96a7\u9053<\/h3>\n<p>\u5b8c\u6210\u914d\u7f6e\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7 ping \u547d\u4ee4\u6d4b\u8bd5 GRE \u96a7\u9053\u7684\u8fde\u901a\u6027\u3002\u5728 Server A \u4e0a\uff0c\u8fd0\u884c\uff1a<\/p>\n<pre><code>ping 10.0.0.2<\/code><\/pre>\n<p>\u5982\u679c\u4e00\u5207\u6b63\u5e38\uff0c\u60a8\u5e94\u8be5\u80fd\u591f\u6210\u529f ping \u901a Server B \u7684 GRE \u96a7\u9053 IP \u5730\u5740\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e6%8e%92%e9%99%a4-UBQysmkYSC\">\u6545\u969c\u6392\u9664<\/h2>\n<p>\u5982\u679c\u5728\u914d\u7f6e\u8fc7\u7a0b\u4e2d\u9047\u5230\u95ee\u9898\uff0c\u53ef\u4ee5\u68c0\u67e5\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<ul>\n<li>\u786e\u4fdd\u4e24\u53f0\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u7f51\u7edc\u8fde\u63a5\u6b63\u5e38\u3002<\/li>\n<li>\u68c0\u67e5\u9632\u706b\u5899\u8bbe\u7f6e\uff0c\u786e\u4fdd GRE \u534f\u8bae\uff08\u534f\u8bae\u53f7 47\uff09\u672a\u88ab\u963b\u6b62\u3002<\/li>\n<li>\u4f7f\u7528 <code>ip a<\/code> \u547d\u4ee4\u786e\u8ba4 GRE \u96a7\u9053\u7684\u72b6\u6001\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%80%bb%e7%bb%93-UBQysmkYSC\">\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u60a8\u53ef\u4ee5\u5728 CentOS \u7cfb\u7edf\u4e0a\u6210\u529f\u914d\u7f6e GRE \u96a7\u9053\uff0c\u5b9e\u73b0\u4e0d\u540c\u7f51\u7edc\u4e4b\u95f4\u7684\u5b89\u5168\u901a\u4fe1\u3002GRE \u96a7\u9053\u7684\u7075\u6d3b\u6027\u548c\u591a\u534f\u8bae\u652f\u6301\u4f7f\u5176\u6210\u4e3a\u6784\u5efa\u865a\u62df\u4e13\u7528\u7f51\u7edc\u7684\u7406\u60f3\u9009\u62e9\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u7f51\u7edc\u89e3\u51b3\u65b9\u6848\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u6216\u5176\u4ed6\u76f8\u5173\u670d\u52a1\uff0c\u4ee5\u6ee1\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn how to configure GRE tunnels on CentOS for secure and efficient network communication. Step-by-step guide for seamless setup.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-44156","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=44156"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44156\/revisions"}],"predecessor-version":[{"id":44157,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44156\/revisions\/44157"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}