OSPF lab.

Using a simulator I need to create a four router topology. Using any interfaces of my choice. I am given /24 networks – choose interface addresses from the given network ID.
Configure all routers in OSPF area 0 and make sure you can ping from end-to-end.



Use the following network IDs.
Between R1 and R2 =10.10.10.0/24
Between R2 and R3= 20.20.20.0/24
Between R3 and R4 = 30.30.30.0/24.

I am to show R1's and R4's routing table. How do I do this?

To create a four-router topology and configure OSPF with the given network IDs, you can follow these steps:

1. Launch your network simulator or emulator, such as Cisco Packet Tracer, GNS3, or EVE-NG.

2. Add four router devices to your topology.

3. Connect the routers to form the desired topology. For this scenario, connect R1 to R2, R2 to R3, and R3 to R4. You can use any interfaces of your choice, as long as they share the same network IDs as specified.

4. Configure the IP addresses for the interfaces based on the given network IDs.

- For the connection between R1 and R2, assign IP addresses from the network 10.10.10.0/24 to their respective interfaces.
- For the connection between R2 and R3, assign IP addresses from the network 20.20.20.0/24 to their respective interfaces.
- For the connection between R3 and R4, assign IP addresses from the network 30.30.30.0/24 to their respective interfaces.

5. Enable OSPF on all routers and configure them to be in Area 0.

6. Verify the OSPF configuration on each router using the following commands:

- On R1 and R4, use the "show ip route" command to view the routing tables.
- On each router, use the "show ip ospf neighbor" command to confirm OSPF neighbors are established.

7. To ensure end-to-end connectivity, try to ping from R1 to R4. If the OSPF configurations are correct, you should be able to ping between the routers successfully.

Note: The specific commands to perform these steps may vary depending on the network simulator or emulator you are using. Refer to the documentation or user guides of your chosen tool for more details on how to configure OSPF and view routing tables.