Lab 6: OSPF

Task

Topology

1. Configure IP Address as per given in topology.
2. Configure OSPF According to the topology and provide Router-ID as Router Name (like 1.1.1.1 for R1).
3. Communicate OSPF Area 100 to OSPF Area 0.
4. Make sure all the loopback addresses are manual summarize in OSPF Areas.
5. Make sure R10 loopback not advertise in area 0.

Solution

Task 2: Configure OSPF According to the topology and provide Router-ID as Router Name (like 1.1.1.1 for R1).

On R1
=====

router ospf 1
 router-id 1.1.1.1
 network 24.45.99.0 0.0.0.255 area 0
 network 25.0.0.0 0.0.0.255 area 0
 network 158.52.64.0 0.0.0.255 area 0


On R2
=====

router ospf 1
 router-id 2.2.2.2
 network 15.24.0.0 0.0.0.255 area 10
 network 25.0.0.0 0.0.0.255 area 0
 network 84.122.34.0 0.0.0.255 area 0
 network 99.54.66.0 0.0.0.255 area 0
 network 199.50.200.0 0.0.0.255 area 10


On R3
=====

router ospf 1
 network 25.0.0.0 0.0.0.255 area 0
 network 74.175.65.0 0.0.0.255 area 40
 network 84.122.34.0 0.0.0.255 area 0
 network 158.52.64.0 0.0.0.255 area 0


On R4
=====

router ospf 1
 router-id 4.4.4.4
 network 24.45.99.0 0.0.0.255 area 0
 network 25.0.0.0 0.0.0.255 area 0
 network 99.54.66.0 0.0.0.255 area 0
 network 100.0.0.0 0.0.0.255 area 87

On R5
=====

router ospf 1
 router-id 5.5.5.5
 network 145.33.54.0 0.0.0.255 area 10
 network 199.50.200.0 0.0.0.255 area 10

On R6
=====

router ospf 1
 router-id 6.6.6.6
 network 15.24.0.0 0.0.0.255 area 10
 network 33.42.21.0 0.0.0.255 area 10


On R7
=====

router ospf 1
 router-id 7.7.7.7
 network 7.7.1.1 0.0.0.0 area 40
 network 7.7.2.1 0.0.0.0 area 40
 network 7.7.3.1 0.0.0.0 area 40
 network 7.7.4.1 0.0.0.0 area 40
 network 74.175.65.0 0.0.0.255 area 40


On R8
=====

router ospf 1
 router-id 8.8.8.8
 area 100 range 12.12.0.0 255.255.248.0
 network 100.0.0.0 0.0.0.255 area 87
 network 201.114.25.0 0.0.0.255 area 100


On R9
=====

router ospf 1
 router-id 9.9.9.9
 network 9.9.1.1 0.0.0.0 area 10
 network 9.9.2.1 0.0.0.0 area 10
 network 9.9.3.1 0.0.0.0 area 10
 network 9.9.4.1 0.0.0.0 area 10
 network 145.33.54.0 0.0.0.255 area 10


On R10
=====

router ospf 1
 router-id 10.10.10.10
 network 10.10.1.0 0.0.0.255 area 10
 network 10.10.2.0 0.0.0.255 area 10
 network 10.10.3.0 0.0.0.255 area 10
 network 10.10.4.0 0.0.0.255 area 10
 network 33.42.21.0 0.0.0.255 area 10

On R11
======

router ospf 1
 router-id 11.11.11.11
 network 11.11.11.1 0.0.0.0 area 40
 network 11.11.12.1 0.0.0.0 area 40
 network 11.11.13.1 0.0.0.0 area 40
 network 11.11.14.1 0.0.0.0 area 40
 network 74.175.65.0 0.0.0.255 area 40

On R12
======

router ospf 1
 router-id 12.12.12.12
 network 12.12.1.1 0.0.0.0 area 100
 network 12.12.2.1 0.0.0.0 area 100
 network 12.12.3.1 0.0.0.0 area 100
 network 12.12.4.1 0.0.0.0 area 100
 network 201.114.25.0 0.0.0.255 area 100


Task 3: Communicate OSPF Area 100 to OSPF Area 0.

On R4
=====

router ospf 1
 area 87 virtual-link 8.8.8.8


On R8
=====

router ospf 1
 area 87 virtual-link 4.4.4.4


Task 4: Make sure all the loopback address are manual summerize in OSPF Areas.

On R2
=====

router ospf 1
 area 10 range 9.9.0.0 255.255.248.0

On R3
=====

router ospf 1
 area 40 range 7.7.0.0 255.255.248.0
 area 40 range 11.11.8.0 255.255.248.0

On R8
=====

router ospf 1
 area 100 range 12.12.0.0 255.255.248.0

 
Task 5: Make sure R10 loopback not advertise in area 0.

On R2
=====

router ospf 1
 area 10 range 10.10.0.0 255.255.248.0 not-advertise