Lab – OSPF Multiárea (5 Áreas) – III

Scripts de Configuração

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Relembre-se:

O que é SUMARIZACAO?

A SUMARIZACAO consiste em reunir várias sub-redes em um único prefixo maior, reduzindo o número de rotas no OSPF.
No OSPF, ela só ocorre entre áreas e deve ser configurada nos ABRs, que enviam para a Área 0 um resumo das redes internas, otimizando a topologia e a tabela de roteamento.

R1 — AS 2000

interface e0/0
 ip address 20.20.20.1 255.255.255.252

interface e0/1
 ip address 20.20.20.5 255.255.255.252

interface lo1
 ip address 20.20.20.13 255.255.255.255

interface lo2
 ip address 20.20.20.17 255.255.255.255

interface lo3
 ip address 20.20.20.21 255.255.255.255

interface lo4
 ip address 20.20.20.25 255.255.255.255

interface lo5
 ip address 20.20.20.29 255.255.255.255

interface lo6
 ip address 20.20.20.33 255.255.255.255

interface lo7
 ip address 20.20.20.37 255.255.255.255

interface lo8
 ip address 20.20.20.41 255.255.255.255

router ospf 2000
 router-id 1.1.1.1
 network 20.20.20.0 0.0.0.255 area 2

R2 — AS 2000

interface e0/0
 ip address 20.20.20.2 255.255.255.252

interface e0/1
 ip address 20.20.20.9 255.255.255.252

router ospf 2000
 router-id 2.2.2.2
 network 20.20.20.0 0.0.0.255 area 2

R3 — AS 2000 (ABR)

interface e0/0
 ip address 20.20.20.6 255.255.255.252

interface e0/1
 ip address 20.20.20.10 255.255.255.252

interface e0/2
 ip address 120.120.120.1 255.255.255.252

interface e0/3
 ip address 120.120.120.5 255.255.255.252

interface e1/0
 ip address 120.120.120.9 255.255.255.252

! INTRA-AREA
router ospf 2000
 router-id 3.3.3.3
 network 20.20.20.0 0.0.0.255 area 2

! INTER-AREA
interface e0/2
 ip ospf 2000 area 0
interface e0/3
 ip ospf 2000 area 0
interface e1/0
 ip ospf 2000 area 0

! SUMARIZACAO
router ospf 2000
 area 2 range 20.20.0.0 255.255.0.0

R4 — AS 1000 (ABR)

interface e0/0
 ip address 10.10.10.6 255.255.255.252

interface e0/1
 ip address 10.10.10.10 255.255.255.252

interface e0/2
 ip address 120.120.120.17 255.255.255.252

interface e0/3
 ip address 120.120.120.6 255.255.255.252

interface e1/0
 ip address 120.120.120.13 255.255.255.252

router ospf 1000
 router-id 4.4.4.4
 network 10.10.10.0 0.0.0.255 area 1

interface e0/2
 ip ospf 1000 area 0
interface e0/3
 ip ospf 1000 area 0
interface e1/0
 ip ospf 1000 area 0

R5 — AS 1000

interface e0/0
 ip address 10.10.10.5 255.255.255.252

interface e0/1
 ip address 10.10.10.1 255.255.255.252

router ospf 1000
 router-id 5.5.5.5
 network 10.10.10.0 0.0.0.255 area 1

R6 — AS 1000

interface e0/0
 ip address 10.10.10.9 255.255.255.252

interface e0/1
 ip address 10.10.10.2 255.255.255.252

router ospf 1000
 router-id 6.6.6.6
 network 10.10.10.0 0.0.0.255 area 1

R7 — AS 4000

interface e0/0
 ip address 40.40.40.5 255.255.255.252

interface e0/1
 ip address 40.40.40.1 255.255.255.252

router ospf 4000
 router-id 7.7.7.7
 network 40.40.40.0 0.0.0.255 area 4

R8 — AS 4000 (ABR)

interface e0/0
 ip address 40.40.40.6 255.255.255.252

interface e0/1
 ip address 40.40.40.10 255.255.255.252

interface e0/2
 ip address 120.120.120.18 255.255.255.252

interface e0/3
 ip address 120.120.120.22 255.255.255.252

interface e1/0
 ip address 120.120.120.10 255.255.255.252

router ospf 4000
 router-id 8.8.8.8
 network 40.40.40.0 0.0.0.255 area 4

interface e0/2
 ip ospf 4000 area 0
interface e0/3
 ip ospf 4000 area 0
interface e1/0
 ip ospf 4000 area 0

! SUMARIZACAO (CUSTO 100)
router ospf 4000
 area 4 range 40.40.0.0 255.255.0.0 cost 100

R9 — AS 4000

interface e0/0
 ip address 40.40.40.2 255.255.255.252

interface e0/1
 ip address 40.40.40.9 255.255.255.252

interface lo1
 ip address 40.40.40.13 255.255.255.255
interface lo2
 ip address 40.40.40.17 255.255.255.255
interface lo3
 ip address 40.40.40.21 255.255.255.255
interface lo4
 ip address 40.40.40.25 255.255.255.255
interface lo5
 ip address 40.40.40.29 255.255.255.255
interface lo6
 ip address 40.40.40.33 255.255.255.255
interface lo7
 ip address 40.40.40.37 255.255.255.255
interface lo8
 ip address 40.40.40.41 255.255.255.255

router ospf 4000
 router-id 9.9.9.9
 network 40.40.40.0 0.0.0.255 area 4

R10 — AS 3000

interface e0/0
 ip address 30.30.30.5 255.255.255.252

interface e0/1
 ip address 30.30.30.1 255.255.255.252

router ospf 3000
 router-id 10.10.10.10
 network 30.30.30.0 0.0.0.255 area 3

R11 — AS 3000

interface e0/0
 ip address 30.30.30.2 255.255.255.252

interface e0/1
 ip address 30.30.30.9 255.255.255.252

router ospf 3000
 router-id 11.11.11.11
 network 30.30.30.0 0.0.0.255 area 3

R12 — AS 3000 (ABR)

interface e0/0
 ip address 30.30.30.6 255.255.255.252

interface e0/1
 ip address 30.30.30.10 255.255.255.252

interface e0/2
 ip address 120.120.120.2 255.255.255.252

interface e0/3
 ip address 120.120.120.21 255.255.255.252

interface e1/0
 ip address 120.120.120.14 255.255.255.252

router ospf 3000
 router-id 12.12.12.12
 network 30.30.30.0 0.0.0.255 area 3

interface e0/2
 ip ospf 3000 area 0
interface e0/3
 ip ospf 3000 area 0
interface e1/0
 ip ospf 3000 area 0

! SUMARIZACAO NAO ANUNCIADA
router ospf 3000
 area 3 range 30.30.0.0 255.255.0.0 not-advertise