How to configure multi area ospf lab in cisco packet tracer

In this lab we will learn to configure multi area ospf using cisco packet tracer.
In below Network Topology Diagram you can see there are Two area Area 0 and Area 1.

Now you have to configure OSPF such that devices in area 0 can easily communicate with devices in Area 1

 

multi area ospf lab

STEP 1:First assign ip address on each interfaces as show in above Diagram.

STEP 2:Now configure OSPF on Router R1:
Router(config)#host R1
R1(config)#router ospf 1
R1(config-router)#network 1.0.0.0 0.255.255.255 area 0
R1(config-router)#network 2.0.0.0 0.255.255.255 area 0
R1(config-router)#router-id 1.1.1.1

 

STEP 3:Configure OSPF on Router R2:
Router(config)#host R2
R2(config-router)#network 2.0.0.0 0.255.255.255 area 0
R2(config-router)#network 3.0.0.0 0.255.255.255 area 1 
R2(config-router)#router-id 2.2.2.2

 

STEP 4:Now finally Configure OSPF on Router R3:
Router(config)#host R3
R3(config)#router ospf 1
R3(config-router)#network 3.0.0.0 0.255.255.255 area 1
R3(config-router)#network 4.0.0.0 0.255.255.255 area 1
R3(config-router)#router-id 3.3.3.3

 

STEP 5: Now verify your ospf Configuration:

For verification go on middle router named R2:

Verify Route First:

 

R2#show ip route

 

Step 6:Now Verify Protocols running on the ROUTER r2:
R2#show ip protocols
Routing Protocol is "ospf 1"

IF YOU carefully watch the output you will find Two AREA Area 0 and Area 1 active on this Router.

 

STEP 7:Display ospf routing basic information

here you will also see the information about AREA in Details.

 

 

R2#show ip ospf
Routing Process "ospf 1" with ID 3.0.0.1
STEP 8: See OSPF Neighbors.
R2#show ip ospf neighbor

 

SEE Little More details suing below command.

 

R2#show ip ospf neighbor detail

 

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