Linux的路由表详细介绍
<p><strong>Linux的路由表详细介绍</strong></p>
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<strong>一 在Linux下执行route命令</strong></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">0.0.0.0 192.168.0.1 0.0.0.0 UG 100 0 0 enp0s3</code>
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<code class="bash plain">192.168.0.0 0.0.0.0 255.255.255.0 U 100 0 0 enp0s3</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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<code class="bash plain"></code><code class="bash comments"># route</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">default gateway 0.0.0.0 UG 100 0 0 enp0s3</code>
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<code class="bash plain">192.168.0.0 0.0.0.0 255.255.255.0 U 100 0 0 enp0s3</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>二 route命令详解</strong></p>
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1、命令语法</p>
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<code class="bash plain">route [-n]</code>
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<code class="bash plain">选项与参数：</code>
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<code class="bash plain">-n：将主机名以IP方式显示</code>
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<strong>2、查询结果分析</strong></p>
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<code class="java plain">Destination ：其实就是Network的意思。</code>
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<code class="java plain">Gateway ：就是该接口的Gateway的IP，若为</code><code class="java value">0.0</code><code class="java plain">.</code><code class="java value">0.0</code><code class="java plain">，表示不需要额外的IP。</code>
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<code class="java plain">Genmask ：就是Netmask，与Destination组合成一台主机或网络。</code>
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<code class="java plain">Flags ：共有多个标志可以来表示该网络或主机代表的意义。</code>
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<code class="java spaces"> </code><code class="java plain">U：代表该路由可用。</code>
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<code class="java spaces"> </code><code class="java plain">G：代表需要经过Gateway来帮忙传递。</code>
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<code class="java spaces"> </code><code class="java plain">H：代表该行路由为一台主机，而非一个网络。</code>
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<code class="java plain">Iface ：就是</code><code class="java keyword">interface</code><code class="java plain">（接口）的意思。</code>
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以上就是对Linux 路由表的详解，如有疑问请留言或者到本站社区交流讨论，感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！</p>
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原文链接：http://cakin24.iteye.com/blog/2336157</p>
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