在三层交换机和出口路由器上的两个接口上运行三层路由协议并宣告这两个接口，同时在出口路由器上下发一条默认路由default-information originate alway。
再在三层交换机上把底下PC的两个网段宣告进三层路由协议，这时出口路由器学到PC的两个网段，三层交换机上学到默认路由。
这时PC去ping出口路由器的IP通。三层交换机可以运行三层路由协议。#计算机网络知识大讲堂#

#RubyIsOnIt# I ran 1.6 kilometers today hhhh, finnally I restart to exercise. Today all my roommates asked me why I alway stay at dorm, why I don't fall in love with someone and go out for fun -_-#. Well I don't know how to answer. I will finish my assignment tomorrow and then I will start to learn criminal law. The only motivation I have now is the new episode of the Thai series I like coming periodically.

October summarize：1-achieve October target[佩奇]
2-maybe you will forget today but you dont forget you original intention[佩奇]
3-I hope you can alway enrich yourself [佩奇]
4-you feature will be better and you wil be better [佩奇]
5-Noveber goes on[佩奇]

present myself-易 ​​​[奥特曼]