In this section, you will use the following network and add OSPF routing.[HAVE TO ATTACH SCREENSHOT OF OUTPUT]

Table 9.5 shows our IP addresses for each router (each interface uses a /24 mask). Please follow the instructions of the Lab 3 in the simulator to finish IP addressing.

The following Labs are the same as Lab 4 in your simulator. Please follow the instruction and provide the screenshot for Lab 9.3. (or Lab 4.3 in your simulator).

Hands-on Lab 9.1: Enabling the OSPF Process

This is the first mandatory step in OSPF configuration.

1. Enable OSPF process 100 on Lab_A:

Lab_A#conf t

Enter configuration commands, one per line.

End with CNTL/Z.

Lab_A (config)#router ospf 100

Lab_A (config-router)#^Z

2. Enable OSPF process 101 on Lab_B:

Lab_B#conf t

Enter configuration commands, one per line.

End with CNTL/Z.

Lab_B (config)#router ospf 101

Lab_B (config-router)#^Z

3. Enable OSPF process 102 on Lab_C:

Lab_C#conf t

Enter configuration commands, one per line.

End with CNTL/Z.

Lab_C (config)#router ospf 102

Lab_C (config-router)#^Z

Hands-on Lab 9.2: Configuring OSPF Interfaces

The second mandatory step in OSPF is adding your network statements.

1. Configure the LAN and the network between Lab_A and Lab_B.

Assign it to area 0.

Lab_A#conf t

Enter configuration commands, one per line.

End with CNTL/Z.

Lab_A (config)#router ospf 100

Lab_A (config-router)#network 172.16.10.1 0.0.0.0 area 0

Lab_A (config-router)#network 172.16.20.1 0.0.0.0 area 0

Lab_A (config-router)#^Z Lab_A #

2. Configure the networks on the Lab_B router. Assign them to area 0.

Lab_B#conf t

Enter configuration commands, one per line.

End with CNTL/Z.

Lab_B(config)#router ospf 101

Lab_B(config-router)#network 172.16.20.2 0.0.0.0 area 0

Lab_B(config-router)#network 172.16.30.1 0.0.0.0 area 0

Lab_B(config-router)#^Z

Lab_B #

3. Configure the networks on the Lab_C router. Assign them to area 0.

Lab_C#conf t

Enter configuration commands, one per line.

End with CNTL/Z.

Lab_C(config)#router ospf 102

Lab_C(config-router)#network 172.16.30.2 0.0.0.0 area 0

Lab_C(config-router)#network 172.16.40.1 0.0.0.0 area 0

Lab_C(config-router)#^Z

Lab_C#

Hands-on Lab 9.3: Verifying OSPF Operation

You need to be able to verify what you configure.

1. Execute a show ip ospf neighbors command from the Lab_A router and view the results.

Lab_A#sho ip ospf neig

2. Execute a show ip route command to verify that all other routers are learning all routes.

Lab_A#sho ip route

3. Execute a show ip protocols command to verify OSPF information.

Lab_A#sho ip protocols

4. Execute a show ip OSPF command to verify your RID.

Lab_A#sho ip ospf

5. Execute a show ip ospf interface f0/0 command to verify your timers.

Lab_A#sho ip ospf int f0/0