Purpose

In this lab, we used Cisco Packet Tracer to configure OSPF for a small enterprise network with four routers.

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Assignments

The following table for IP addressing was used to configure the network:

Network Name	Network Address	Subnet Mask	Default Gateway	Router Acting as Gateway
Border-to-Data Center	10.17.1.0	255.255.255.248	10.17.1.1	Border-Router
EastRouter2-to-Data Center	10.17.1.20	255.255.255.252	10.17.1.21	East-Router
DataCenter-to-WestRouter4	10.17.1.32	255.255.255.252	10.17.1.33	Data-Center-Router
East	10.17.20.0	255.255.255.0	10.17.20.1	East-Router
West	10.17.40.0	255.255.255.0	10.17.40.1	West-Router

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Border Router Configuration

To start, we configured the Border Router by first setting its hostname.

Then we configured the port GigabitEthernet0/0 which connected to the Data Center Router.

Lastly, we configured OSPF on the router.

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Data Center Router Configuration

Next, we configured the Data Center Router by following largely the same steps.

The ports of GigabitEthernet0/0, 0/1, and 0/2 were also configured in relation to the Assignments table.

OSPF was lastly configured on the router for the three networks.

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East Router Configuration

After this, we configured the East router.

The ports of GigabitEthernet0/0 and 0/1 were configured referencing the table.

And OSPF was configured for the two networks.

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West Router Configuration

Finally, we configured the West Router similar to that of the East Router.

The ports of GigabitEthernet0/0 and 0/1 were configured referencing the table.

OSPF was configured for the two networks.

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Connection Testing

If everything was configured successfully, it should be possible to ping between the West and East PCs.

Running the command sh ip route on the Data Center, East, and West routers should also output appropriate results.