{"id":48773,"date":"2025-07-30T13:18:38","date_gmt":"2025-07-30T05:18:38","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/48773.html"},"modified":"2025-07-30T13:18:38","modified_gmt":"2025-07-30T05:18:38","slug":"linux-route-%e6%8c%87%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/48773.html","title":{"rendered":"Linux route \u6307\u4ee4"},"content":{"rendered":"<h2>Linux route \u6307\u4ee4<\/h2>\n<p>route \u662f Linux \u7cfb\u7edf\u4e2d\u4e00\u6b3e\u7ecf\u5178\u7684\u7f51\u7edc\u914d\u7f6e\u5de5\u5177&#xff0c;\u7528\u4e8e\u67e5\u770b\u548c\u64cd\u4f5c IP \u8def\u7531\u8868\u3002\u5b83\u901a\u8fc7\u7ba1\u7406\u5185\u6838\u8def\u7531\u8868&#xff0c;\u63a7\u5236\u6570\u636e\u5305\u5728\u7f51\u7edc\u4e2d\u7684\u8f6c\u53d1\u8def\u5f84&#xff0c;\u662f\u7cfb\u7edf\u7ba1\u7406\u5458\u548c\u7f51\u7edc\u5de5\u7a0b\u5e08\u8fdb\u884c\u7f51\u7edc\u914d\u7f6e\u3001\u6545\u969c\u6392\u67e5\u548c\u4f18\u5316\u8def\u7531\u7b56\u7565\u7684\u6838\u5fc3\u5de5\u5177\u4e4b\u4e00\u3002route \u547d\u4ee4\u7531 net-tools \u8f6f\u4ef6\u5305\u63d0\u4f9b&#xff0c;\u5c3d\u7ba1\u73b0\u4ee3 Linux \u53d1\u884c\u7248\u63a8\u8350\u4f7f\u7528 ip route&#xff08;iproute2 \u5de5\u5177\u96c6&#xff09;&#xff0c;route \u56e0\u5176\u7b80\u5355\u76f4\u89c2\u4ecd\u5e7f\u6cdb\u5e94\u7528\u4e8e\u811a\u672c\u548c\u4f20\u7edf\u73af\u5883\u3002<\/p>\n<hr \/>\n<h3>&#x1f4da; \u4ec0\u4e48\u662f route \u6307\u4ee4&#xff1f;<\/h3>\n<h4>\u6982\u8ff0<\/h4>\n<p>route \u547d\u4ee4\u662f Linux \u7cfb\u7edf\u4e2d\u7528\u4e8e\u7ba1\u7406\u548c\u914d\u7f6e IP \u8def\u7531\u8868\u7684\u5de5\u5177&#xff0c;\u5c5e\u4e8e net-tools \u8f6f\u4ef6\u5305\u3002\u5b83\u5141\u8bb8\u7528\u6237\u67e5\u770b\u5f53\u524d\u8def\u7531\u8868\u3001\u6dfb\u52a0\u6216\u5220\u9664\u9759\u6001\u8def\u7531\u3001\u8bbe\u7f6e\u9ed8\u8ba4\u7f51\u5173&#xff0c;\u5e76\u8c03\u6574\u8def\u7531\u4f18\u5148\u7ea7\u3002\u8def\u7531\u8868\u51b3\u5b9a\u6570\u636e\u5305\u4ece\u6e90\u4e3b\u673a\u5230\u76ee\u6807\u4e3b\u673a\u7684\u8f6c\u53d1\u8def\u5f84&#xff0c;\u57fa\u4e8e\u76ee\u6807 IP \u5730\u5740\u3001\u7f51\u7edc\u63a9\u7801\u3001\u7f51\u5173\u548c\u63a5\u53e3\u7b49\u4fe1\u606f\u3002route \u901a\u8fc7\u76f4\u63a5\u64cd\u4f5c\u5185\u6838\u7684\u8def\u7531\u8868&#xff08;\u5b58\u50a8\u5728 \/proc\/net\/route&#xff09;&#xff0c;\u5b9e\u73b0\u5bf9 IPv4 \u8def\u7531\u7684\u52a8\u6001\u7ba1\u7406\u3002route \u7684\u8bbe\u8ba1\u6ce8\u91cd\u7b80\u5355\u6027\u548c\u517c\u5bb9\u6027&#xff0c;\u5e7f\u6cdb\u652f\u6301\u4e8e Linux \u53d1\u884c\u7248&#xff08;\u5982 Ubuntu\u3001CentOS\u3001Arch Linux&#xff09;&#xff0c;\u5c3d\u7ba1\u5728\u73b0\u4ee3\u7cfb\u7edf\u4e2d\u9010\u6e10\u88ab\u529f\u80fd\u66f4\u5f3a\u5927\u7684 ip route \u66ff\u4ee3\u3002<\/p>\n<h4>\u6838\u5fc3\u6982\u5ff5<\/h4>\n<ul>\n<li>\u8def\u7531\u8868&#xff1a;\u5185\u6838\u7ef4\u62a4\u7684\u8868\u683c&#xff0c;\u5305\u542b\u8def\u7531\u89c4\u5219&#xff0c;\u51b3\u5b9a\u6570\u636e\u5305\u7684\u8f6c\u53d1\u8def\u5f84\u3002<\/li>\n<li>\u8def\u7531\u7c7b\u578b&#xff1a;\n<ul>\n<li>\u76f4\u63a5\u8def\u7531&#xff1a;\u76f4\u8fde\u7f51\u7edc&#xff08;\u5982\u672c\u5730\u63a5\u53e3\u7684\u5b50\u7f51&#xff09;\u3002<\/li>\n<li>\u9759\u6001\u8def\u7531&#xff1a;\u624b\u52a8\u914d\u7f6e\u7684\u56fa\u5b9a\u8def\u5f84\u3002<\/li>\n<li>\u9ed8\u8ba4\u8def\u7531&#xff1a;\u5f53\u65e0\u5339\u914d\u8def\u7531\u65f6\u4f7f\u7528\u7684\u8def\u5f84&#xff08;\u9ed8\u8ba4\u7f51\u5173&#xff09;\u3002<\/li>\n<li>\u52a8\u6001\u8def\u7531&#xff1a;\u7531\u8def\u7531\u534f\u8bae&#xff08;\u5982 RIP\u3001OSPF&#xff09;\u751f\u6210\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u8def\u7531\u6761\u76ee&#xff1a;\n<ul>\n<li>\u76ee\u6807&#xff08;Destination&#xff09;&#xff1a;\u76ee\u6807 IP \u6216\u7f51\u6bb5&#xff08;\u5982 192.168.1.0\/24&#xff09;\u3002<\/li>\n<li>\u7f51\u5173&#xff08;Gateway&#xff09;&#xff1a;\u4e0b\u4e00\u8df3 IP \u5730\u5740\u3002<\/li>\n<li>\u7f51\u7edc\u63a9\u7801&#xff08;Genmask&#xff09;&#xff1a;\u5b9a\u4e49\u7f51\u6bb5\u8303\u56f4\u3002<\/li>\n<li>\u63a5\u53e3&#xff08;Iface&#xff09;&#xff1a;\u6570\u636e\u5305\u53d1\u9001\u7684\u7f51\u7edc\u63a5\u53e3&#xff08;\u5982 eth0&#xff09;\u3002<\/li>\n<li>\u6807\u5fd7&#xff08;Flags&#xff09;&#xff1a;\u5982 U&#xff08;\u8def\u7531\u53ef\u7528&#xff09;\u3001G&#xff08;\u7f51\u5173\u8def\u7531&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u9ed8\u8ba4\u7f51\u5173&#xff1a;\u5904\u7406\u672a\u77e5\u76ee\u6807\u7684\u8def\u7531&#xff0c;\u901a\u5e38\u6307\u5411\u8def\u7531\u5668\u3002<\/li>\n<li>\u8def\u7531\u4f18\u5148\u7ea7&#xff1a;\u7531\u5ea6\u91cf\u503c&#xff08;Metric&#xff09;\u51b3\u5b9a&#xff0c;\u503c\u8d8a\u5c0f\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002<\/li>\n<\/ul>\n<h4>\u6838\u5fc3\u7279\u70b9<\/h4>\n<ul>\n<li>\u7b80\u5355\u76f4\u89c2&#xff1a;\u547d\u4ee4\u683c\u5f0f\u6e05\u6670&#xff0c;\u6613\u4e8e\u5b66\u4e60\u548c\u4f7f\u7528\u3002<\/li>\n<li>\u52a8\u6001\u7ba1\u7406&#xff1a;\u652f\u6301\u8fd0\u884c\u65f6\u6dfb\u52a0\u6216\u5220\u9664\u8def\u7531\u3002<\/li>\n<li>\u8de8\u5e73\u53f0\u517c\u5bb9&#xff1a;\u652f\u6301\u5927\u591a\u6570 Unix-like \u7cfb\u7edf\u3002<\/li>\n<li>\u811a\u672c\u53cb\u597d&#xff1a;\u6613\u4e8e\u96c6\u6210\u5230 Shell \u811a\u672c\u548c\u81ea\u52a8\u5316\u4efb\u52a1\u3002<\/li>\n<li>\u8f7b\u91cf\u9ad8\u6548&#xff1a;\u8d44\u6e90\u5360\u7528\u4f4e&#xff0c;\u9002\u5408\u5d4c\u5165\u5f0f\u8bbe\u5907\u3002<\/li>\n<\/ul>\n<h4>\u57fa\u672c\u8bed\u6cd5<\/h4>\n<p>route <span class=\"token punctuation\">[<\/span>\u9009\u9879<span class=\"token punctuation\">]<\/span> <span class=\"token punctuation\">[<\/span>\u547d\u4ee4<span class=\"token punctuation\">]<\/span> <span class=\"token punctuation\">[<\/span>\u53c2\u6570<span class=\"token punctuation\">]<\/span><\/p>\n<h5>\u53c2\u6570\u8bf4\u660e<\/h5>\n<ul>\n<li>\u547d\u4ee4&#xff1a;\n<ul>\n<li>add&#xff1a;\u6dfb\u52a0\u8def\u7531\u3002<\/li>\n<li>del&#xff1a;\u5220\u9664\u8def\u7531\u3002<\/li>\n<li>\u65e0\u547d\u4ee4&#xff1a;\u663e\u793a\u8def\u7531\u8868\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u9009\u9879&#xff1a;\n<ul>\n<li>-n&#xff1a;\u663e\u793a\u6570\u5b57 IP \u5730\u5740&#xff0c;\u4e0d\u89e3\u6790\u4e3b\u673a\u540d\u3002<\/li>\n<li>-v&#xff1a;\u8be6\u7ec6\u8f93\u51fa\u3002<\/li>\n<li>-F&#xff1a;\u663e\u793a\u4e3b\u8def\u7531\u8868&#xff08;\u9ed8\u8ba4&#xff09;\u3002<\/li>\n<li>-C&#xff1a;\u663e\u793a\u8def\u7531\u7f13\u5b58&#xff08;\u8f83\u5c11\u4f7f\u7528&#xff09;\u3002<\/li>\n<li>&#8211;help&#xff1a;\u663e\u793a\u5e2e\u52a9\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u53c2\u6570&#xff1a;\n<ul>\n<li>-net NET\/MASK&#xff1a;\u76ee\u6807\u7f51\u7edc\u548c\u63a9\u7801&#xff08;\u5982 -net 192.168.2.0\/24&#xff09;\u3002<\/li>\n<li>-host HOST&#xff1a;\u76ee\u6807\u4e3b\u673a IP&#xff08;\u5982 -host 192.168.1.100&#xff09;\u3002<\/li>\n<li>gw GATEWAY&#xff1a;\u6307\u5b9a\u7f51\u5173 IP\u3002<\/li>\n<li>dev IFACE&#xff1a;\u6307\u5b9a\u63a5\u53e3&#xff08;\u5982 dev eth0&#xff09;\u3002<\/li>\n<li>metric M&#xff1a;\u8bbe\u7f6e\u8def\u7531\u4f18\u5148\u7ea7&#xff08;\u5ea6\u91cf\u503c&#xff09;\u3002<\/li>\n<li>default&#xff1a;\u914d\u7f6e\u9ed8\u8ba4\u7f51\u5173\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u884c\u4e3a<\/h5>\n<ul>\n<li>\u9ed8\u8ba4&#xff1a;\u663e\u793a\u5f53\u524d\u8def\u7531\u8868&#xff0c;\u5305\u542b\u76ee\u6807\u3001\u7f51\u5173\u3001\u63a9\u7801\u3001\u63a5\u53e3\u7b49\u3002<\/li>\n<li>\u4fee\u6539&#xff1a;\u901a\u8fc7 add \u6216 del \u66f4\u65b0\u8def\u7531\u8868&#xff0c;\u7acb\u5373\u751f\u6548\u3002<\/li>\n<li>\u9519\u8bef&#xff1a;\u82e5\u53c2\u6570\u65e0\u6548\u6216\u65e0\u6743\u9650&#xff0c;\u62a5\u9519\u5e76\u9000\u51fa\u3002<\/li>\n<\/ul>\n<h4>\u6ce8\u610f\u4e8b\u9879<\/h4>\n<ul>\n<li>\n<p>\u6743\u9650\u8981\u6c42&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u4fee\u6539\u8def\u7531\u8868\u9700 root \u6743\u9650&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> default gw <span class=\"token number\">192.168<\/span>.1.1<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6301\u4e45\u5316\u914d\u7f6e&#xff1a;<\/p>\n<ul>\n<li>route \u4fee\u6539\u4e3a\u4e34\u65f6&#xff0c;\u91cd\u542f\u5931\u6548&#xff0c;\u9700\u7f16\u8f91\u914d\u7f6e\u6587\u4ef6&#xff08;\u5982 \/etc\/network\/interfaces&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u63a5\u53e3\u72b6\u6001&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u76ee\u6807\u63a5\u53e3\u5fc5\u987b\u542f\u7528&#xff1a;<\/p>\n<p><span class=\"token function\">ip<\/span> <span class=\"token function\">link<\/span> show eth0<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u66ff\u4ee3\u5de5\u5177&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u73b0\u4ee3\u7cfb\u7edf\u63a8\u8350 ip route&#xff0c;\u529f\u80fd\u66f4\u5168\u9762&#xff1a;<\/p>\n<p><span class=\"token function\">ip<\/span> route show<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8def\u7531\u51b2\u7a81&#xff1a;<\/p>\n<ul>\n<li>\u91cd\u590d\u6216\u51b2\u7a81\u7684\u8def\u7531\u53ef\u80fd\u5bfc\u81f4\u7f51\u7edc\u95ee\u9898\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>&#x1f527; route \u7684\u5e38\u89c1\u7528\u9014<\/h3>\n<h4>\u5e94\u7528\u573a\u666f<\/h4>\n<ul>\n<li>\u7f51\u7edc\u914d\u7f6e&#xff1a;\u8bbe\u7f6e\u9ed8\u8ba4\u7f51\u5173\u6216\u9759\u6001\u8def\u7531\u3002<\/li>\n<li>\u6545\u969c\u6392\u67e5&#xff1a;\u68c0\u67e5\u8def\u7531\u8868&#xff0c;\u5b9a\u4f4d\u6570\u636e\u5305\u4e22\u5931\u6216\u9519\u8bef\u8def\u5f84\u3002<\/li>\n<li>\u591a\u7f51\u5361\u7ba1\u7406&#xff1a;\u914d\u7f6e\u591a\u63a5\u53e3\u8def\u7531\u7b56\u7565\u3002<\/li>\n<li>VPN \u8bbe\u7f6e&#xff1a;\u6dfb\u52a0\u7279\u5b9a\u7f51\u7edc\u7684\u8def\u7531\u3002<\/li>\n<li>\u8d1f\u8f7d\u5747\u8861&#xff1a;\u901a\u8fc7\u5ea6\u91cf\u503c\u5b9e\u73b0\u7b80\u5355\u8def\u7531\u9009\u62e9\u3002<\/li>\n<\/ul>\n<hr \/>\n<h3>&#x1f6e0;\ufe0f \u57fa\u7840\u7528\u6cd5\u4e0e\u793a\u4f8b<\/h3>\n<h4>\u51c6\u5907\u5de5\u4f5c<\/h4>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u5047\u8bbe\u8fd0\u884c\u5728 Bash shell&#xff08;\u5982 Ubuntu 22.04 \u6216 CentOS 8&#xff0c;\u5f53\u524d\u65f6\u95f4\u4e3a 2025-06-09 08:31 CST&#xff09;\u3002\u6211\u4eec\u5c06\u5728\u865a\u62df\u673a\u6216\u7269\u7406\u673a\u4e0a\u8fd0\u884c route&#xff0c;\u7f51\u7edc\u73af\u5883\u5305\u542b\u63a5\u53e3 eth0&#xff08;IP&#xff1a;192.168.1.100\/24&#xff09;\u548c eth1&#xff08;IP&#xff1a;192.168.2.100\/24&#xff09;&#xff0c;\u9ed8\u8ba4\u7f51\u5173\u4e3a 192.168.1.1\u3002\u4e3a\u786e\u4fdd\u4fee\u6539\u6743\u9650&#xff0c;\u6240\u6709\u5199\u64cd\u4f5c\u4ee5 sudo \u8fd0\u884c\u3002<\/p>\n<h5>\u5b89\u88c5 route<\/h5>\n<p>route \u7531 net-tools \u63d0\u4f9b&#xff0c;\u5927\u591a\u6570\u53d1\u884c\u7248\u9ed8\u8ba4\u5b89\u88c5&#xff0c;\u68c0\u67e5&#xff1a;<\/p>\n<p>route &#8211;version<\/p>\n<p>\u82e5\u672a\u5b89\u88c5&#xff1a;<\/p>\n<ul>\n<li>\n<p>Ubuntu&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">apt-get<\/span> update<br \/>\n<span class=\"token function\">sudo<\/span> <span class=\"token function\">apt-get<\/span> <span class=\"token function\">install<\/span> net-tools<\/p>\n<\/li>\n<li>\n<p>CentOS&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> dnf <span class=\"token function\">install<\/span> net-tools<\/p>\n<\/li>\n<li>\n<p>Arch Linux&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> pacman -S net-tools<\/p>\n<\/li>\n<\/ul>\n<h5>\u68c0\u67e5\u7f51\u7edc<\/h5>\n<p>\u786e\u8ba4\u63a5\u53e3\u72b6\u6001&#xff1a;<\/p>\n<p><span class=\"token function\">ip<\/span> addr show<\/p>\n<p>\u8f93\u51fa\u793a\u4f8b&#xff1a;<\/p>\n<p>2: eth0: &lt;BROADCAST,UP&gt; mtu 1500<br \/>\n    inet 192.168.1.100\/24 brd 192.168.1.255<br \/>\n3: eth1: &lt;BROADCAST,UP&gt; mtu 1500<br \/>\n    inet 192.168.2.100\/24 brd 192.168.2.255<\/p>\n<h4>\u793a\u4f8b 1&#xff1a;\u67e5\u770b\u8def\u7531\u8868<\/h4>\n<h5>\u547d\u4ee4<\/h5>\n<p>route<\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u9ed8\u8ba4\u663e\u793a\u5185\u6838\u8def\u7531\u8868&#xff0c;\u5305\u542b\u76ee\u6807\u3001\u7f51\u5173\u3001\u63a9\u7801\u7b49\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<p>Kernel IP routing table<br \/>\nDestination     Gateway         Genmask         Flags Metric Ref    Use Iface<br \/>\ndefault         192.168.1.1     0.0.0.0         UG    0      0        0 eth0<br \/>\n192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0<br \/>\n192.168.2.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1<\/p>\n<h5>\u8bf4\u660e<\/h5>\n<ul>\n<li>default&#xff1a;\u9ed8\u8ba4\u7f51\u5173\u3002<\/li>\n<li>0.0.0.0&#xff1a;\u8868\u793a\u65e0\u7f51\u5173&#xff08;\u76f4\u8fde&#xff09;\u3002<\/li>\n<li>UG&#xff1a;\u8868\u793a\u7f51\u5173\u8def\u7531\u3002<\/li>\n<\/ul>\n<h4>\u793a\u4f8b 2&#xff1a;\u6570\u5b57\u683c\u5f0f\u663e\u793a<\/h4>\n<h5>\u547d\u4ee4<\/h5>\n<p>route -n<\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>-n&#xff1a;\u4e0d\u89e3\u6790\u4e3b\u673a\u540d&#xff0c;\u4ec5\u663e\u793a IP \u5730\u5740\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<p>Kernel IP routing table<br \/>\nDestination     Gateway         Genmask         Flags Metric Ref    Use Iface<br \/>\n0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0<br \/>\n192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0<br \/>\n192.168.2.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1<\/p>\n<h4>\u793a\u4f8b 3&#xff1a;\u6dfb\u52a0\u9ed8\u8ba4\u7f51\u5173<\/h4>\n<h5>\u547d\u4ee4<\/h5>\n<p><span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> default gw <span class=\"token number\">192.168<\/span>.1.1 dev eth0<\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u6dfb\u52a0\u9ed8\u8ba4\u8def\u7531&#xff0c;\u7f51\u5173\u4e3a 192.168.1.1&#xff0c;\u901a\u8fc7 eth0\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\n<p>\u65e0\u8f93\u51fa&#xff0c;\u9a8c\u8bc1&#xff1a;<\/p>\n<p>route -n<\/p>\n<p>Destination     Gateway         Genmask         Flags Metric Ref    Use Iface<br \/>\n0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0<\/p>\n<\/li>\n<\/ul>\n<h4>\u793a\u4f8b 4&#xff1a;\u6dfb\u52a0\u9759\u6001\u8def\u7531<\/h4>\n<h5>\u547d\u4ee4<\/h5>\n<p><span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">10.0<\/span>.0.0\/24 gw <span class=\"token number\">192.168<\/span>.2.1 dev eth1<\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u4e3a 10.0.0.0\/24 \u7f51\u6bb5\u6dfb\u52a0\u8def\u7531&#xff0c;\u7f51\u5173\u4e3a 192.168.2.1&#xff0c;\u901a\u8fc7 eth1\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\n<p>\u9a8c\u8bc1&#xff1a;<\/p>\n<p>route -n<\/p>\n<p>Destination     Gateway         Genmask         Flags Metric Ref    Use Iface<br \/>\n0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0<br \/>\n10.0.0.0        192.168.2.1     255.255.255.0   UG    0      0        0 eth1<br \/>\n192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0<br \/>\n192.168.2.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1<\/p>\n<\/li>\n<\/ul>\n<h4>\u793a\u4f8b 5&#xff1a;\u5220\u9664\u8def\u7531<\/h4>\n<h5>\u547d\u4ee4<\/h5>\n<p><span class=\"token function\">sudo<\/span> route del -net <span class=\"token number\">10.0<\/span>.0.0\/24<\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u5220\u9664 10.0.0.0\/24 \u7684\u8def\u7531\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\n<p>\u9a8c\u8bc1&#xff1a;<\/p>\n<p>route -n<\/p>\n<p>Destination     Gateway         Genmask         Flags Metric Ref    Use Iface<br \/>\n0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0<br \/>\n192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0<br \/>\n192.168.2.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1<\/p>\n<\/li>\n<\/ul>\n<h4>\u793a\u4f8b 6&#xff1a;\u6dfb\u52a0\u4e3b\u673a\u8def\u7531<\/h4>\n<h5>\u547d\u4ee4<\/h5>\n<p><span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -host <span class=\"token number\">192.168<\/span>.3.100 gw <span class=\"token number\">192.168<\/span>.2.1 dev eth1<\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u4e3a\u5355\u4e00\u4e3b\u673a 192.168.3.100 \u6dfb\u52a0\u8def\u7531\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\n<p>\u9a8c\u8bc1&#xff1a;<\/p>\n<p>route -n<\/p>\n<p>Destination     Gateway         Genmask         Flags Metric Ref    Use Iface<br \/>\n192.168.3.100   192.168.2.1     255.255.255.255 UGH   0      0        0 eth1<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>&#x1f680; \u5e38\u7528\u9009\u9879\u4e0e\u529f\u80fd<\/h3>\n<p>\u4ee5\u4e0b\u662f route \u7684\u5e38\u7528\u9009\u9879&#xff0c;\u5206\u7c7b\u4e3a\u8def\u7531\u7ba1\u7406\u3001\u663e\u793a\u63a7\u5236\u548c\u9ad8\u7ea7\u914d\u7f6e\u3002<\/p>\n<h4>&#x1f50d; \u8def\u7531\u7ba1\u7406<\/h4>\n<table>\n<tr>\u9009\u9879\/\u53c2\u6570\u63cf\u8ff0<\/tr>\n<tbody>\n<tr>\n<td>add<\/td>\n<td>\u6dfb\u52a0\u8def\u7531<\/td>\n<\/tr>\n<tr>\n<td>del<\/td>\n<td>\u5220\u9664\u8def\u7531<\/td>\n<\/tr>\n<tr>\n<td>-net NET\/MASK<\/td>\n<td>\u6307\u5b9a\u76ee\u6807\u7f51\u6bb5<\/td>\n<\/tr>\n<tr>\n<td>-host HOST<\/td>\n<td>\u6307\u5b9a\u76ee\u6807\u4e3b\u673a<\/td>\n<\/tr>\n<tr>\n<td>gw GATEWAY<\/td>\n<td>\u6307\u5b9a\u7f51\u5173<\/td>\n<\/tr>\n<tr>\n<td>dev IFACE<\/td>\n<td>\u6307\u5b9a\u63a5\u53e3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>\u793a\u4f8b<\/h5>\n<p><span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">172.16<\/span>.0.0\/16 gw <span class=\"token number\">192.168<\/span>.1.2 dev eth0<\/p>\n<h4>&#x1f4dc; \u663e\u793a\u63a7\u5236<\/h4>\n<table>\n<tr>\u9009\u9879\u63cf\u8ff0<\/tr>\n<tbody>\n<tr>\n<td>-n<\/td>\n<td>\u4e0d\u89e3\u6790\u4e3b\u673a\u540d<\/td>\n<\/tr>\n<tr>\n<td>-v<\/td>\n<td>\u8be6\u7ec6\u8f93\u51fa<\/td>\n<\/tr>\n<tr>\n<td>-F<\/td>\n<td>\u663e\u793a\u4e3b\u8def\u7531\u8868<\/td>\n<\/tr>\n<tr>\n<td>-C<\/td>\n<td>\u663e\u793a\u8def\u7531\u7f13\u5b58<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>\u793a\u4f8b<\/h5>\n<p>route -vn<\/p>\n<h4>&#x1f4c1; \u9ad8\u7ea7\u914d\u7f6e<\/h4>\n<table>\n<tr>\u53c2\u6570\u63cf\u8ff0<\/tr>\n<tbody>\n<tr>\n<td>metric M<\/td>\n<td>\u8bbe\u7f6e\u8def\u7531\u4f18\u5148\u7ea7<\/td>\n<\/tr>\n<tr>\n<td>reject<\/td>\n<td>\u62d2\u7edd\u8def\u7531<\/td>\n<\/tr>\n<tr>\n<td>mod<\/td>\n<td>\u4fee\u6539\u73b0\u6709\u8def\u7531<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>\u793a\u4f8b<\/h5>\n<p><span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">10.0<\/span>.0.0\/24 gw <span class=\"token number\">192.168<\/span>.1.1 metric <span class=\"token number\">10<\/span><\/p>\n<hr \/>\n<h3>&#x1f31f; \u9ad8\u7ea7\u7528\u6cd5<\/h3>\n<h4>\u6982\u8ff0<\/h4>\n<p>route \u7684\u9ad8\u7ea7\u7528\u6cd5\u6d89\u53ca\u591a\u7f51\u5361\u8def\u7531\u3001VPN \u914d\u7f6e\u3001\u8d1f\u8f7d\u5747\u8861\u3001\u6301\u4e45\u5316\u8def\u7531\u548c\u81ea\u52a8\u5316\u811a\u672c&#xff0c;\u9002\u5408\u590d\u6742\u7f51\u7edc\u73af\u5883\u3002<\/p>\n<h4>&#x1f6e1;\ufe0f 1. \u591a\u7f51\u5361\u8def\u7531\u914d\u7f6e<\/h4>\n<h5>\u547d\u4ee4<\/h5>\n<p><span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">10.0<\/span>.0.0\/24 gw <span class=\"token number\">192.168<\/span>.1.1 dev eth0 metric <span class=\"token number\">10<\/span><br \/>\n<span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">10.0<\/span>.0.0\/24 gw <span class=\"token number\">192.168<\/span>.2.1 dev eth1 metric <span class=\"token number\">5<\/span><\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u4e3a\u540c\u4e00\u7f51\u6bb5\u914d\u7f6e\u4e24\u6761\u8def\u7531&#xff0c;eth1 \u4f18\u5148&#xff08;\u5ea6\u91cf\u503c\u8f83\u4f4e&#xff09;\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\n<p>\u9a8c\u8bc1&#xff1a;<\/p>\n<p>route -n<\/p>\n<p>Destination     Gateway         Genmask         Flags Metric Ref    Use Iface<br \/>\n10.0.0.0        192.168.2.1     255.255.255.0   UG    5      0        0 eth1<br \/>\n10.0.0.0        192.168.1.1     255.255.255.0   UG    10     0        0 eth0<\/p>\n<\/li>\n<\/ul>\n<h4>&#x1f50d; 2. VPN \u8def\u7531\u914d\u7f6e<\/h4>\n<h5>\u547d\u4ee4<\/h5>\n<p><span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">192.168<\/span>.100.0\/24 gw <span class=\"token number\">10.8<\/span>.0.1 dev tun0<\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u4e3a VPN \u7f51\u7edc 192.168.100.0\/24 \u6dfb\u52a0\u8def\u7531&#xff0c;\u901a\u8fc7 VPN \u63a5\u53e3 tun0\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\n<p>\u9a8c\u8bc1&#xff1a;<\/p>\n<p>route -n<\/p>\n<\/li>\n<\/ul>\n<h4>&#x1f504; 3. \u6301\u4e45\u5316\u8def\u7531<\/h4>\n<h5>\u914d\u7f6e<\/h5>\n<ul>\n<li>\n<p>Ubuntu&#xff08;\/etc\/network\/interfaces&#xff09;&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">nano<\/span> \/etc\/network\/interfaces<\/p>\n<p>\u6dfb\u52a0&#xff1a;<\/p>\n<p>auto eth0<br \/>\niface eth0 inet static<br \/>\n    address 192.168.1.100<br \/>\n    netmask 255.255.255.0<br \/>\n    gateway 192.168.1.1<br \/>\n    up route add -net 10.0.0.0\/24 gw 192.168.1.2<\/p>\n<\/li>\n<li>\n<p>CentOS&#xff08;\/etc\/sysconfig\/network-scripts\/route-eth0&#xff09;&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">nano<\/span> \/etc\/sysconfig\/network-scripts\/route-eth0<\/p>\n<p>\u6dfb\u52a0&#xff1a;<\/p>\n<p>10.0.0.0\/24 via 192.168.1.2 dev eth0<\/p>\n<\/li>\n<li>\n<p>\u5e94\u7528&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> systemctl restart networking<\/p>\n<\/li>\n<\/ul>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u786e\u4fdd\u8def\u7531\u91cd\u542f\u540e\u751f\u6548\u3002<\/li>\n<\/ul>\n<h4>\u26a1 4. \u8def\u7531\u62d2\u7edd<\/h4>\n<h5>\u547d\u4ee4<\/h5>\n<p><span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">192.168<\/span>.3.0\/24 reject<\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u62d2\u7edd\u8bbf\u95ee 192.168.3.0\/24&#xff0c;\u8fd4\u56de\u4e0d\u53ef\u8fbe\u9519\u8bef\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\n<p>\u6d4b\u8bd5&#xff1a;<\/p>\n<p><span class=\"token function\">ping<\/span> <span class=\"token number\">192.168<\/span>.3.1<br \/>\n<span class=\"token comment\"># Network is unreachable<\/span><\/p>\n<\/li>\n<\/ul>\n<h4>&#x1f510; 5. \u81ea\u52a8\u5316\u8def\u7531\u811a\u672c<\/h4>\n<h5>\u811a\u672c<\/h5>\n<p><span class=\"token shebang important\">#!\/bin\/bash<\/span><br \/>\n<span class=\"token assign-left variable\">IFACE<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;eth0&#034;<\/span><br \/>\n<span class=\"token assign-left variable\">GW<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;192.168.1.1&#034;<\/span><br \/>\n<span class=\"token assign-left variable\">NET<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;10.0.0.0\/24&#034;<\/span><br \/>\n<span class=\"token function\">sudo<\/span> route del -net <span class=\"token string\">&#034;<span class=\"token variable\">$NET<\/span>&#034;<\/span> <span class=\"token operator\"><span class=\"token file-descriptor important\">2<\/span>&gt;<\/span>\/dev\/null<br \/>\n<span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token string\">&#034;<span class=\"token variable\">$NET<\/span>&#034;<\/span> gw <span class=\"token string\">&#034;<span class=\"token variable\">$GW<\/span>&#034;<\/span> dev <span class=\"token string\">&#034;<span class=\"token variable\">$IFACE<\/span>&#034;<\/span><br \/>\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;Route for <span class=\"token variable\">$NET<\/span> added via <span class=\"token variable\">$GW<\/span>&#034;<\/span><\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u81ea\u52a8\u5220\u9664\u65e7\u8def\u7531\u5e76\u6dfb\u52a0\u65b0\u8def\u7531\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<p>Route for 10.0.0.0\/24 added via 192.168.1.1<\/p>\n<hr \/>\n<h3>\u26a0\ufe0f \u4f7f\u7528 route \u65f6\u7684\u6ce8\u610f\u4e8b\u9879<\/h3>\n<li>\n<p>\u6743\u9650\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u975e root \u7528\u6237\u65e0\u6cd5\u4fee\u6539\u8def\u7531&#xff1a;<\/p>\n<p>route <span class=\"token function\">add<\/span> default gw <span class=\"token number\">192.168<\/span>.1.1<br \/>\n<span class=\"token comment\"># SIOCADDRT: Permission denied<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u63a5\u53e3\u72b6\u6001&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u786e\u4fdd\u63a5\u53e3\u542f\u7528&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">ip<\/span> <span class=\"token function\">link<\/span> <span class=\"token builtin class-name\">set<\/span> eth0 up<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8def\u7531\u51b2\u7a81&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u68c0\u67e5\u73b0\u6709\u8def\u7531&#xff0c;\u907f\u514d\u91cd\u590d&#xff1a;<\/p>\n<p>route -n<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6301\u4e45\u5316\u914d\u7f6e&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528\u914d\u7f6e\u6587\u4ef6\u4fdd\u5b58\u8def\u7531&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">nano<\/span> \/etc\/network\/interfaces<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u73b0\u4ee3\u66ff\u4ee3&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u4f18\u5148\u8003\u8651 ip route&#xff1a;<\/p>\n<p><span class=\"token function\">ip<\/span> route <span class=\"token function\">add<\/span> <span class=\"token number\">10.0<\/span>.0.0\/24 via <span class=\"token number\">192.168<\/span>.1.2<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<hr \/>\n<h3>&#x1f6e0;\ufe0f \u9ad8\u7ea7\u6280\u5de7\u4e0e\u5b9e\u6218\u6848\u4f8b<\/h3>\n<h4>\u6982\u8ff0<\/h4>\n<p>\u4ee5\u4e0b\u662f\u9ad8\u7ea7\u6280\u5de7\u548c\u5b9e\u6218\u6848\u4f8b&#xff0c;\u5c55\u793a route \u5728\u590d\u6742\u573a\u666f\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n<h4>&#x1f5a5;\ufe0f \u6848\u4f8b 1&#xff1a;\u53cc ISP \u8d1f\u8f7d\u5747\u8861<\/h4>\n<h5>\u811a\u672c<\/h5>\n<p><span class=\"token shebang important\">#!\/bin\/bash<\/span><br \/>\n<span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> default gw <span class=\"token number\">192.168<\/span>.1.1 dev eth0 metric <span class=\"token number\">10<\/span><br \/>\n<span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> default gw <span class=\"token number\">192.168<\/span>.2.1 dev eth1 metric <span class=\"token number\">5<\/span><br \/>\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;Dual ISP routes configured&#034;<\/span><\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u914d\u7f6e\u4e24\u4e2a\u9ed8\u8ba4\u7f51\u5173&#xff0c;eth1 \u4f18\u5148\u3002<\/li>\n<li>\u5b9e\u73b0\u7b80\u5355\u8d1f\u8f7d\u5747\u8861\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<p>Dual ISP routes configured<\/p>\n<h4>&#x1f4e6; \u6848\u4f8b 2&#xff1a;VPN \u6d41\u91cf\u5206\u6d41<\/h4>\n<h5>\u811a\u672c<\/h5>\n<p><span class=\"token shebang important\">#!\/bin\/bash<\/span><br \/>\n<span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">192.168<\/span>.100.0\/24 gw <span class=\"token number\">10.8<\/span>.0.1 dev tun0<br \/>\n<span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">0.0<\/span>.0.0\/1 gw <span class=\"token number\">192.168<\/span>.1.1 dev eth0<br \/>\n<span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token number\">128.0<\/span>.0.0\/1 gw <span class=\"token number\">192.168<\/span>.1.1 dev eth0<br \/>\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;VPN split routing configured&#034;<\/span><\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>VPN \u6d41\u91cf\u8d70 tun0&#xff0c;\u5176\u4ed6\u6d41\u91cf\u8d70 eth0\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<p>VPN split routing configured<\/p>\n<h4>&#x1f512; \u6848\u4f8b 3&#xff1a;\u8def\u7531\u76d1\u63a7<\/h4>\n<h5>\u811a\u672c<\/h5>\n<p><span class=\"token shebang important\">#!\/bin\/bash<\/span><br \/>\n<span class=\"token assign-left variable\">LOG<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\/tmp\/route_monitor.log&#034;<\/span><br \/>\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;Route check: <span class=\"token variable\"><span class=\"token variable\">$(<\/span><span class=\"token function\">date<\/span><span class=\"token variable\">)<\/span><\/span>&#034;<\/span> <span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token string\">&#034;<span class=\"token variable\">$LOG<\/span>&#034;<\/span><br \/>\nroute -n <span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token string\">&#034;<span class=\"token variable\">$LOG<\/span>&#034;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token operator\">!<\/span> route -n <span class=\"token operator\">|<\/span> <span class=\"token function\">grep<\/span> -q <span class=\"token string\">&#034;192.168.1.1&#034;<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">then<\/span><br \/>\n    <span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;Default gateway missing!&#034;<\/span> <span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token string\">&#034;<span class=\"token variable\">$LOG<\/span>&#034;<\/span><br \/>\n<span class=\"token keyword\">fi<\/span><\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u5b9a\u671f\u68c0\u67e5\u8def\u7531\u8868&#xff0c;\u8bb0\u5f55\u5f02\u5e38\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\/tmp\/route_monitor.log \u5305\u542b\u8def\u7531\u72b6\u6001\u3002<\/li>\n<\/ul>\n<h4>&#x1f4c8; \u6848\u4f8b 4&#xff1a;\u52a8\u6001\u8def\u7531\u8c03\u6574<\/h4>\n<h5>\u811a\u672c<\/h5>\n<p><span class=\"token shebang important\">#!\/bin\/bash<\/span><br \/>\n<span class=\"token assign-left variable\">TARGET<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;10.0.0.0\/24&#034;<\/span><br \/>\n<span class=\"token assign-left variable\">GW1<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;192.168.1.1&#034;<\/span><br \/>\n<span class=\"token assign-left variable\">GW2<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;192.168.2.1&#034;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token function\">ping<\/span> -c <span class=\"token number\">1<\/span> <span class=\"token string\">&#034;<span class=\"token variable\">$GW1<\/span>&#034;<\/span> <span class=\"token operator\">&amp;&gt;<\/span>\/dev\/null<span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">then<\/span><br \/>\n    <span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token string\">&#034;<span class=\"token variable\">$TARGET<\/span>&#034;<\/span> gw <span class=\"token string\">&#034;<span class=\"token variable\">$GW1<\/span>&#034;<\/span> dev eth0<br \/>\n<span class=\"token keyword\">else<\/span><br \/>\n    <span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token string\">&#034;<span class=\"token variable\">$TARGET<\/span>&#034;<\/span> gw <span class=\"token string\">&#034;<span class=\"token variable\">$GW2<\/span>&#034;<\/span> dev eth1<br \/>\n<span class=\"token keyword\">fi<\/span><\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u6839\u636e\u7f51\u5173\u53ef\u7528\u6027\u52a8\u6001\u9009\u62e9\u8def\u7531\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\u8def\u7531\u81ea\u52a8\u914d\u7f6e\u3002<\/li>\n<\/ul>\n<h4>&#x1f527; \u6848\u4f8b 5&#xff1a;\u6279\u91cf\u8def\u7531\u7ba1\u7406<\/h4>\n<h5>\u811a\u672c<\/h5>\n<p><span class=\"token shebang important\">#!\/bin\/bash<\/span><br \/>\n<span class=\"token assign-left variable\">ROUTES<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span><br \/>\n    <span class=\"token string\">&#034;10.0.0.0\/24 192.168.1.2 eth0&#034;<\/span><br \/>\n    <span class=\"token string\">&#034;172.16.0.0\/16 192.168.2.1 eth1&#034;<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token for-or-select variable\">route<\/span> <span class=\"token keyword\">in<\/span> <span class=\"token string\">&#034;<span class=\"token variable\">${ROUTES<span class=\"token punctuation\">[<\/span>&#064;<span class=\"token punctuation\">]<\/span>}<\/span>&#034;<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">do<\/span><br \/>\n    <span class=\"token assign-left variable\">NET<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token variable\"><span class=\"token variable\">$(<\/span><span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;<span class=\"token variable\">$route<\/span>&#034;<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">awk<\/span> <span class=\"token string\">&#039;{print <span class=\"token variable\">$1<\/span>}&#039;<\/span><span class=\"token variable\">)<\/span><\/span><br \/>\n    <span class=\"token assign-left variable\">GW<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token variable\"><span class=\"token variable\">$(<\/span><span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;<span class=\"token variable\">$route<\/span>&#034;<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">awk<\/span> <span class=\"token string\">&#039;{print <span class=\"token variable\">$2<\/span>}&#039;<\/span><span class=\"token variable\">)<\/span><\/span><br \/>\n    <span class=\"token assign-left variable\">DEV<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token variable\"><span class=\"token variable\">$(<\/span><span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;<span class=\"token variable\">$route<\/span>&#034;<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">awk<\/span> <span class=\"token string\">&#039;{print <span class=\"token variable\">$3<\/span>}&#039;<\/span><span class=\"token variable\">)<\/span><\/span><br \/>\n    <span class=\"token function\">sudo<\/span> route <span class=\"token function\">add<\/span> -net <span class=\"token string\">&#034;<span class=\"token variable\">$NET<\/span>&#034;<\/span> gw <span class=\"token string\">&#034;<span class=\"token variable\">$GW<\/span>&#034;<\/span> dev <span class=\"token string\">&#034;<span class=\"token variable\">$DEV<\/span>&#034;<\/span><br \/>\n<span class=\"token keyword\">done<\/span><\/p>\n<h5>\u89e3\u91ca<\/h5>\n<ul>\n<li>\u6279\u91cf\u6dfb\u52a0\u8def\u7531\u3002<\/li>\n<\/ul>\n<h5>\u8f93\u51fa\u793a\u4f8b<\/h5>\n<ul>\n<li>\u8def\u7531\u8868\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<hr \/>\n<h3>&#x1f517; \u7ed3\u5408\u5176\u4ed6\u5de5\u5177<\/h3>\n<ul>\n<li>\n<p>With ip:<\/p>\n<p>route -n<br \/>\n<span class=\"token function\">ip<\/span> route show<\/p>\n<\/li>\n<li>\n<p>With ping:<\/p>\n<p><span class=\"token function\">ping<\/span> -c <span class=\"token number\">4<\/span> <span class=\"token number\">10.0<\/span>.0.1 <span class=\"token operator\">&amp;&amp;<\/span> route -n<\/p>\n<\/li>\n<li>\n<p>With cron:<\/p>\n<p><span class=\"token number\">0<\/span> * * * * route -n <span class=\"token operator\">&gt;&gt;<\/span> \/tmp\/route.log<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>&#x1f4dd; \u603b\u7ed3<\/h3>\n<p>route \u662f Linux \u7cfb\u7edf\u4e2d\u7b80\u5355\u800c\u5f3a\u5927\u7684\u8def\u7531\u7ba1\u7406\u5de5\u5177&#xff0c;\u9002\u5408\u7f51\u7edc\u914d\u7f6e\u3001\u6545\u969c\u6392\u67e5\u548c\u7b56\u7565\u4f18\u5316\u3002\u672c\u6587\u4ece\u57fa\u7840\u5230\u9ad8\u7ea7&#xff0c;\u7ed3\u5408\u8be6\u7ec6\u793a\u4f8b\u548c\u6ce8\u610f\u4e8b\u9879&#xff0c;\u5168\u9762\u4ecb\u7ecd\u4e86 route \u7684\u529f\u80fd\u3002\u5c3d\u7ba1 ip route \u9010\u6e10\u53d6\u4ee3\u5176\u5730\u4f4d&#xff0c;route \u4ecd\u56e0\u5176\u6613\u7528\u6027\u5728\u8bb8\u591a\u573a\u666f\u4e2d\u4e0d\u53ef\u6216\u7f3a\u3002<\/p>\n<h2>\u66f4\u591a\u6280\u672f\u5206\u4eab&#xff0c;\u5173\u6ce8\u516c\u4f17\u53f7&#xff1a;halugin<\/h2>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.3k\u6b21\uff0c\u70b9\u8d5e62\u6b21\uff0c\u6536\u85cf20\u6b21\u3002`route` \u547d\u4ee4\u662f Linux \u7cfb\u7edf\u4e2d\u7528\u4e8e\u7ba1\u7406\u548c\u914d\u7f6e IP \u8def\u7531\u8868\u7684\u5de5\u5177\uff0c\u5c5e\u4e8e net-tools \u8f6f\u4ef6\u5305\u3002\u5b83\u5141\u8bb8\u7528\u6237\u67e5\u770b\u5f53\u524d\u8def\u7531\u8868\u3001\u6dfb\u52a0\u6216\u5220\u9664\u9759\u6001\u8def\u7531\u3001\u8bbe\u7f6e\u9ed8\u8ba4\u7f51\u5173\uff0c\u5e76\u8c03\u6574\u8def\u7531\u4f18\u5148\u7ea7\u3002_linux route<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,4716,44],"topic":[],"class_list":{"0":"post-48773","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-server","7":"tag-linux","9":"tag-44"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Linux route \u6307\u4ee4 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/48773.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux route \u6307\u4ee4 - 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