Linux 添加永久静态路由的方法
<p><strong>1/5</strong></p>
<p>
首先让我们查看一下当前机器的路由表，执行如下命令：route -n</p>
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<code class="bash plain"></code><code class="bash comments"># route -n</code>
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<code class="bash plain">Kernel IP routing table</code>
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<code class="bash plain">Destination Gateway Genmask Flags Metric Ref Use Iface</code>
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<code class="bash plain">0.0.0.0 135.252.214.1 0.0.0.0 UG 100 0 0 eth0</code>
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<code class="bash plain">135.252.214.0 0.0.0.0 255.255.255.0 U 100 0 0 eth0</code>
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<code class="bash plain">172.86.40.0 0.0.0.0 255.255.255.0 U 100 0 0 eth1</code>
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<code class="bash plain">192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0</code>
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<strong>2/5</strong></p>
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然后我们确认一下当前工作的网卡，这里我们使用的是eth1。</p>
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补充：如果机器中存在多块网卡，我们可以为不同网卡指定不同的静态路由。</p>
<p>
比如还有eth0，eht2；那么方法是一样的，我们依次为每块网卡创建一个对应的路由配置文件。route-eth0;route-eth1;route-eth2</p>
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<code class="bash plain"></code><code class="bash comments"># ls</code>
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<code class="bash plain">ifcfg-eth0 ifcfg-eth1:enodeb2 ifcfg-eth1:mme2 ifdown ifdown-ib ifdown-isdn ifdown-routes ifdown-TeamPort ifup-aliases ifup-ib ifup-isdn ifup-post ifup-sit ifup-tunnel network-functions</code>
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<code class="bash plain">ifcfg-eth1 ifcfg-eth1:gx ifcfg-eth1:sgi ifdown-bnep ifdown-ippp ifdown-post ifdown-sit ifdown-tunnel ifup-bnep ifup-ippp ifup-plip ifup-ppp ifup-Team ifup-wireless network-functions-ipv6</code>
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<code class="bash plain">ifcfg-eth1:enodeb1 ifcfg-eth1:mme1 ifcfg-lo ifdown-eth ifdown-ipv6 ifdown-ppp ifdown-Team ifup ifup-eth ifup-ipv6 ifup-plusb ifup-routes ifup-TeamPort init.ipv6-global route-eth1</code>
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<p>
<strong>3/5</strong></p>
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接下来让我们添加一条静态路由，访问172.0.0.0/8时通过172.86.40.254</p>
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执行如下命令：</p>
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<code class="bash functions">vi</code> <code class="bash plain">/etc/sysconfig/network-scripts/route-eth1</code>
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添加如下信息：</p>
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172.0.0.0/8 via 172.86.40.254</p>
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保存并退出。</p>
<p>
<strong> 4/5</strong></p>
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然后我们需要重新重启一下网络服务：</p>
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<code class="bash plain">service network restart</code>
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<p>
<strong>5/5</strong></p>
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最后让我们验证一下：route -n；发现此时路由信息已经添加到路由表了，这时无论是重启主机还是重启网络服务路由信息都不会丢了。</p>
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<code class="bash plain"></code><code class="bash comments"># route -n</code>
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<code class="bash plain">Kernel IP routing table</code>
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<code class="bash plain">Destination Gateway Genmask Flags Metric Ref Use Iface</code>
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<code class="bash plain">0.0.0.0 135.252.214.1 0.0.0.0 UG 100 0 0 eth0</code>
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<code class="bash plain">135.252.214.0 0.0.0.0 255.255.255.0 U 100 0 0 eth0</code>
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<code class="bash plain">172.0.0.0 172.86.40.254 255.0.0.0 UG 100 0 0 eth1</code>
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<code class="bash plain">172.86.40.0 0.0.0.0 255.255.255.0 U 100 0 0 eth1</code>
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<code class="bash plain">192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0</code>
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<p>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。</p>
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原文链接：http://www.cnblogs.com/z-joshua/p/6378032.html</p>
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