Default route for Cisco routers

Next we introduce the default routing scenario. First, what is the default route? default Routing is a special kind of Static Routes , which refers to when routing Table when there is no matching table entry between the destination address of the package and the Routers can make the choice. If there is no default route, the packet with the destination address that does not match the table entry in the routing table will be discarded · The default route is very effective at some point, and when there is a peripheral network, the default route greatly simplifies the configuration of the router, reduces the workload of the Administrator, and improves network performance .

We configured the default route based on the previous topology diagram.

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All data for router Yong1 will be sent to the s/0/3/0 of router yong2 to access the Internet, so the router yong1 directly configures a default path.

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Router Yong2 connects two network segments, and in addition to the data for both segments, it will be sent to the s0/3/0 port of Yong3 to access the Internet, so a default route needs to be configured

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Router Yong3 connects two network segments, except that the intranet packets are destined for the Internet. So you need to add routes to the intranet and default routes to the Internet

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After setting the default routes on the three routers, let's separate the routing tables for each of the three machines.

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There is no route to the 10.0.0.0 segment from the router yong1 and Yong2 's routing table. Then let's 10.0.0.2 send the packet and try it out.

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All ping, which is the default route in effect.

This article is from the "Guo Yong Technology blog" blog, make sure to keep this source http://guoyong.blog.51cto.com/408495/1755372

Default route for Cisco routers