Cisco router dedicated router configuration

Because the company server IP address network segment changes: 172.20.1.0/24, originally 172.17.127.0/24, resulting in the company's internal system can not access the external network.

After checking the leased line router is missing the route, need to add the following route on the leased line router

IP route 172.20.1.0 255.255.255.0 20.16.0.1

wr

After the save or ping does not pass

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The router to the intermediary company (normal, because the interface address, the leased line router to end no callback route)

It can be judged that the core switch also needs to add a route

IP route 172.20.1.0 255.255.255.0 router interface address (intranet address)

wr

Saved successfully

In summary, if you want to adjust the network segment, you need to take into account all the devices that are passing through the IP, and routing is required.

This article is from "one van" blog, please be sure to keep this source http://1336014.blog.51cto.com/1326014/1930917

Cisco router dedicated router configuration