OSPF虚链路实验
一.实验环境
实验环境：gns3，c6291路由器
二.实验拓扑图<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/225412171.png" alt="mark" style="zoom:75%;" />
三.实验步骤
我们先将R1的ip配置好。<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/225734243.png" alt="mark" style="zoom:75%;" />
然后配置ospf协议和分配area。<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/230145633.png" alt="mark" style="zoom:75%;" />
然后对R2设置ip<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/230258529.png" alt="mark" style="zoom:75%;" />
配置ospf协议和分配area<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/230454818.png" alt="mark" style="zoom:75%;" />
同样的步骤对R3操作<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/230713258.png" alt="mark" style="zoom:75%;" />
<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/230840146.png" alt="mark" style="zoom:75%;" />
R4也是如此。<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/230954023.png" alt="mark" style="zoom:75%;" />
<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/231059789.png" alt="mark" style="zoom:75%;" />
最后我们还得给R2和R3加虚链路。R2操作如图<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/231508359.png" alt="mark" style="zoom:75%;" />
R3如图<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191023/231557510.png" alt="mark" style="zoom:75%;" />
pc机的ip地址自配。至此，实验结束，可以尝试是否可以ping成功。
