area esp osf egt

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UNIVERSIDAD CATOLICA BOLIVIANA “SAN PABLO “ Implementación de OSFP “Áreas Especiales” Nombres: Fernández Iberth Galarza Edward Marín Eduardo Zerna Lesly Enero 2013

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Page 1: Area Esp Osf Egt

UNIVERSIDAD CATOLICA BOLIVIANA

“SAN PABLO “

Implementación de OSFP “Áreas Especiales”

Nombres:

Fernández Iberth

Galarza Edward

Marín Eduardo

Zerna Lesly

Enero 2013

Page 2: Area Esp Osf Egt

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INDICE

Configuración de áreas especiales OSPF............................................................................................................... 2

Descripción del laboratorio ............................................................................................................................... 2

Esquema del laboratorio ................................................................................................................................... 2

Configuración básica de interfaces en los Routers ........................................................................................... 3

AREA 0 ................................................................................................................................................... 3

AREA 23 ................................................................................................................................................. 4

AREA 45 ................................................................................................................................................. 5

AREA 67 ................................................................................................................................................. 5

AREA 78 ................................................................................................................................................. 6

OBJETIVOS ......................................................................................................................................................... 6

Objetivo 1. ..................................................................................................................................................... 6

Objetivo 2 .................................................................................................................................................... 20

Objetivo 3 .................................................................................................................................................... 24

Objetivo 4 .................................................................................................................................................... 26

Objetivo 5 .................................................................................................................................................... 29

Objetivo 6 .................................................................................................................................................... 33

Objetivo 7 .................................................................................................................................................... 36

Objetivo 8 .................................................................................................................................................... 41

Comentarios y Conclusiones ........................................................................................................................... 43

ANEXOS ........................................................................................................................................................... 44

Page 3: Area Esp Osf Egt

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Configuración de áreas especiales OSPF

Descripción del laboratorio En este laboratorio, se tiene no solo distintas áreas de OSPF sino también, que el AREA 78 no esta

directamente conectado al CORE, de modo que para que esta área pueda comunicarse con el AREA 0 es

necesario establecer “Enlaces Virtuales” (Virtual Links).

Además según requerimientos, se utilizara algunas áreas de OSPF como Normal Stub Area y Totally Stub;

comprobando que filtran tipos de paquetes LSA, y luego cambiando el área Stub por un Not-So-Stubby Area,

ya que esa área en especifico usa EIGRP como protocolo de enrutamiento y solo con un tipo NSSA podrá

conocer de las otras rutas OSPF.

Primero se configurara todo el dominio OSPF, desde sus interfaces hasta los requerimientos de los objetivos,

seguidamente se introduce el router R9 cuyo protocolo de enrutamiento es EIGRP que se lo trata por

separado, pero con mecanismo de inyección de OSFP a EIGRP, es posible también tener conexión desde R9 al

dominio OSPF.

Esquema del laboratorio La configuración requerida para el siguiente ejercicio es la siguiente:

Page 4: Area Esp Osf Egt

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Configuración básica de interfaces en los Routers Antes de empezar a describir los objetivos con los respectivos comandos a utilizar, especificamos la

configuración básica de funcionamiento en cada router según su área correspondiente.

AREA 0

INTERFACES

R1(config)#int f0/0

R1(config-if)#ip address 10.100.1.1 255.255.255.0

R1(config-if)#no shutdown

R1(config-if)#exit

R4(config)#int f0/0

R4(config-if)#ip address 10.100.1.4 255.255.255.0

R4(config-if)#no shutdown

R4(config-if)#exit

R2(config)#int f0/0

R2(config-if)#ip address 10.100.1.2 255.255.255.0

R2(config-if)#no shutdown

R2(config-if)#exit

R6(config)#int f0/0

R6(config-if)#ip address 10.100.1.6 255.255.255.0

R6(config-if)#no shutdown

R6(config-if)#exit

Page 5: Area Esp Osf Egt

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AREA 23

INTERFACES

R3

R3(config)#int s0/0

R3(config-if)#ip address 10.23.1.3 255.255.255.0

R3(config-if)#bandwidth 500

R3(config-if)#no shutdown

R3(config-if)#exit

R3(config)#int loopback 1

R3(config-if)#ip address 172.30.0.1 255.255.255.0

R3(config-if)# ip ospf network point-to-point

R3(config-if)#no shutdown

R3(config-if)#exit

R2

R2(config)#int s0/0

R2(config-if)#ip address 10.23.1.2 255.255.255.0

R2(config-if)#bandwidth 500

R2(config-if)#clock rate 500000

R2(config-if)#no shutdown

R2(config-if)#exit

R3(config)#int loopback 2

R3(config-if)#ip address 172.30.1.1 255.255.255.0

R3(config-if)# ip ospf network point-to-point

R3(config-if)#no shutdown

R3(config-if)#exit

R3(config)#int loopback 3

R3(config-if)#ip address 172.30.2.1 255.255.255.0

R3(config-if)# ip ospf network point-to-point

R3(config-if)#no shutdown

R3(config-if)#exit

R3(config)#int loopback 4

R3(config-if)#ip address 172.30.3.1 255.255.255.0

R3(config-if)# ip ospf network point-to-point

R3(config-if)#no shutdown

R3(config-if)#exit

Page 6: Area Esp Osf Egt

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AREA 45

INTERFACES

R4(config)#int s0/0

R4(config-if)#ip address 10.45.1.4 255.255.255.0

R4(config-if)#bandwidth 500

R4(config-if)#clock rate 500000

R4(config-if)#no shutdown

R4(config-if)#exit

AREA 67

INTERFACES

R6(config)#int s0/0

R6(config-if)#ip address 10.67.1.6 255.255.255.0

R6(config-if)#bandwidth 500

R6(config-if)#clock rate 500000

R6(config-if)#no shutdown

R6(config-if)#exit

R5(config)#int s0/0

R5(config-if)#ip address 10.45.1.5 255.255.255.0

R5(config-if)#bandwidth 500

R5(config-if)#no shutdown

R5(config-if)#exit

R7(config)#int s0/1

R7(config-if)#ip address 10.67.1.7 255.255.255.0

R7(config-if)#bandwidth 500

R7(config-if)#no shutdown

R7(config-if)#exit

Page 7: Area Esp Osf Egt

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AREA 78

INTERFACES

R7(config)#int s0/0

R7(config-if)#ip address 10.78.1.7 255.255.255.0

R7(config-if)#bandwidth 500

R7(config-if)#clock rate 500000

R7(config-if)#no shutdown

R7(config-if)#exit

OBJETIVOS

Objetivo 1.

Configurar OSPF básico para el esquema de red mostrado (configurar todos los

routers menos R9). Publicar todas las redes conectadas a cada router en OSPF usando

el método más simple disponible. Para inyectar redes externas en el dominio OSPF,

redistribuir las rutas estáticas en R1. Estas rutas deberían ser marcadas como tipo

E1.

ENRUTAMIENTO DE OSPF en cada ROUTER

- AREA 0

R1(config)#ip route 172.31.0.0 255.255.255.0 Null 0

R1(config)#ip route 172.31.1.0 255.255.255.0 Null 0

R1(config)#ip route 172.31.2.0 255.255.255.0 Null 0

R1(config)#ip route 172.31.3.0 255.255.255.0 Null 0

R1(config)#router ospf 1

R1(config-router)#network 10.100.1.0 0.0.0.255 area 0

R1(config-router)#redistribute static subnet metric 50 metric-type 1

Inyectando

redes externas

al dominio OSPF

R8(config)#int s0/0

R8(config-if)#ip address 10.78.1.8 255.255.255.0

R8(config-if)#bandwidth 500

R8(config-if)#no shutdown

R8(config-if)#exit

Page 8: Area Esp Osf Egt

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R1(config-router)#router-id 1.1.1.1

Verificando:

R1#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

S 172.31.3.0 is directly connected, Null0

S 172.31.2.0 is directly connected, Null0

S 172.31.1.0 is directly connected, Null0

S 172.31.0.0 is directly connected, Null0

10.0.0.0/24 is subnetted, 1 subnets

C 10.100.1.0 is directly connected, FastEthernet0/0

R2(config)#router ospf 1

R2(config-router)#router-id 2.2.2.2

R2(config-router)#network 10.100.1.0 0.0.0.255 area 0

R2(config-router)#network 10.23.1.0 0.0.0.255 area 23

R2(config-router)#exit

Verificando:

R2#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

O E1 172.31.3.0 [110/60] via 10.100.1.1, 00:01:30, FastEthernet0/0

O E1 172.31.2.0 [110/60] via 10.100.1.1, 00:01:30, FastEthernet0/0

O E1 172.31.1.0 [110/60] via 10.100.1.1, 00:01:30, FastEthernet0/0

Redes externas

al dominio OSPF

redistribuidas

tipo E1

Page 9: Area Esp Osf Egt

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O E1 172.31.0.0 [110/60] via 10.100.1.1, 00:01:30, FastEthernet0/0

10.0.0.0/24 is subnetted, 1 subnets

C 10.100.1.0 is directly connected, FastEthernet0/0

R4(config)#router ospf 1

R4(config-router)#router-id 4.4.4.4

R4(config-router)#network 10.100.1.0 0.0.0.255 area 0

R4(config-router)#network 10.45.1.0 0.0.0.255 area 45

R4(config-router)#exit

Verificando:

R4#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

O E1 172.31.3.0 [110/60] via 10.100.1.1, 00:00:54, FastEthernet0/0

O E1 172.31.2.0 [110/60] via 10.100.1.1, 00:00:54, FastEthernet0/0

O E1 172.31.1.0 [110/60] via 10.100.1.1, 00:00:54, FastEthernet0/0

O E1 172.31.0.0 [110/60] via 10.100.1.1, 00:00:54, FastEthernet0/0

10.0.0.0/24 is subnetted, 1 subnets

C 10.100.1.0 is directly connected, FastEthernet0/0

R6(config)#router ospf 1

R6(config-router)#router-id 6.6.6.6

R6(config-router)#network 10.100.1.0 0.0.0.255 area 0

R6(config-router)#network 10.67.1.0 0.0.0.255 area 67

R6(config-router)#exit

Verificando:

R6#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

Redes externas

al dominio OSPF

redistribuidas

tipo E1

Page 10: Area Esp Osf Egt

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E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

O E1 172.31.3.0 [110/60] via 10.100.1.1, 00:00:39, FastEthernet0/0

O E1 172.31.2.0 [110/60] via 10.100.1.1, 00:00:39, FastEthernet0/0

O E1 172.31.1.0 [110/60] via 10.100.1.1, 00:00:39, FastEthernet0/0

O E1 172.31.0.0 [110/60] via 10.100.1.1, 00:00:39, FastEthernet0/0

10.0.0.0/24 is subnetted, 1 subnets

C 10.100.1.0 is directly connected, FastEthernet0/0

- show ip ospf AREA 0

R1#show ip ospf

Routing Process "ospf 1" with ID 1.1.1.1

Start time: 00:02:53.300, Time elapsed: 00:28:56.016

Supports only single TOS(TOS0) routes

Supports opaque LSA

Supports Link-local Signaling (LLS)

Supports area transit capability

It is an autonomous system boundary router

Redistributing External Routes from,

static with metric mapped to 50, includes subnets in redistribution

Router is not originating router-LSAs with maximum metric

Initial SPF schedule delay 5000 msecs

Minimum hold time between two consecutive SPFs 10000 msecs

Maximum wait time between two consecutive SPFs 10000 msecs

Incremental-SPF disabled

Minimum LSA interval 5 secs

Minimum LSA arrival 1000 msecs

LSA group pacing timer 240 secs

Interface flood pacing timer 33 msecs

Retransmission pacing timer 66 msecs

Number of external LSA 4. Checksum Sum 0x00A323

Number of opaque AS LSA 0. Checksum Sum 0x000000

Number of DCbitless external and opaque AS LSA 0

Number of DoNotAge external and opaque AS LSA 0

Number of areas in this router is 1. 1 normal 0 stub 0 nssa

Number of areas transit capable is 0

Redes externas

al dominio OSPF

redistribuidas

tipo E1

Es un ASBR

Page 11: Area Esp Osf Egt

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External flood list length 0

Area BACKBONE(0)

Number of interfaces in this area is 1

Area has no authentication

SPF algorithm last executed 00:04:57.648 ago

SPF algorithm executed 8 times

Area ranges are

Number of LSA 5. Checksum Sum 0x028A9E

Number of opaque link LSA 0. Checksum Sum 0x000000

Number of DCbitless LSA 0

Number of indication LSA 0

Number of DoNotAge LSA 0

Flood list length 0

R2#show ip ospf

Routing Process "ospf 1" with ID 2.2.2.2

Start time: 00:05:11.500, Time elapsed: 00:25:23.436

Supports only single TOS(TOS0) routes

Supports opaque LSA

Supports Link-local Signaling (LLS)

Supports area transit capability

Router is not originating router-LSAs with maximum metric

Initial SPF schedule delay 5000 msecs

Minimum hold time between two consecutive SPFs 10000 msecs

Maximum wait time between two consecutive SPFs 10000 msecs

Incremental-SPF disabled

Minimum LSA interval 5 secs

Minimum LSA arrival 1000 msecs

LSA group pacing timer 240 secs

Interface flood pacing timer 33 msecs

Retransmission pacing timer 66 msecs

Number of external LSA 4. Checksum Sum 0x009B27

Number of opaque AS LSA 0. Checksum Sum 0x000000

Number of DCbitless external and opaque AS LSA 0

Number of DoNotAge external and opaque AS LSA 0

Number of areas in this router is 2. 2 normal 0 stub 0 nssa

Number of areas transit capable is 0

External flood list length 0

Area BACKBONE(0)

Number of interfaces in this area is 1

Area has no authentication

SPF algorithm last executed 00:02:18.224 ago

Page 12: Area Esp Osf Egt

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SPF algorithm executed 9 times

Area ranges are

Number of LSA 5. Checksum Sum 0x0282A7

Number of opaque link LSA 0. Checksum Sum 0x000000

Number of DCbitless LSA 0

Number of indication LSA 0

Number of DoNotAge LSA 0

Flood list length 0

Area 23

Number of interfaces in this area is 1

Area has no authentication

SPF algorithm last executed 00:02:18.240 ago

SPF algorithm executed 3 times

Area ranges are

Number of LSA 1. Checksum Sum 0x000130

Number of opaque link LSA 0. Checksum Sum 0x000000

Number of DCbitless LSA 0

Number of indication LSA 0

Number of DoNotAge LSA 0

Flood list length 0

R4#show ip ospf

Routing Process "ospf 1" with ID 4.4.4.4

Start time: 00:18:25.844, Time elapsed: 00:01:05.700

Supports only single TOS(TOS0) routes

Supports opaque LSA

Supports Link-local Signaling (LLS)

Supports area transit capability

Router is not originating router-LSAs with maximum metric

Initial SPF schedule delay 5000 msecs

Minimum hold time between two consecutive SPFs 10000 msecs

Maximum wait time between two consecutive SPFs 10000 msecs

Incremental-SPF disabled

Minimum LSA interval 5 secs

Minimum LSA arrival 1000 msecs

LSA group pacing timer 240 secs

Interface flood pacing timer 33 msecs

Retransmission pacing timer 66 msecs

Number of external LSA 4. Checksum Sum 0x009B27

Number of opaque AS LSA 0. Checksum Sum 0x000000

Number of DCbitless external and opaque AS LSA 0

Number of DoNotAge external and opaque AS LSA 0

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Number of areas in this router is 2. 2 normal 0 stub 0 nssa

Number of areas transit capable is 0

External flood list length 0

Area BACKBONE(0)

Number of interfaces in this area is 1

Area has no authentication

SPF algorithm last executed 00:00:48.596 ago

SPF algorithm executed 1 times

Area ranges are

Number of LSA 5. Checksum Sum 0x027AB5

Number of opaque link LSA 0. Checksum Sum 0x000000

Number of DCbitless LSA 0

Number of indication LSA 0

Number of DoNotAge LSA 0

Flood list length 0

Area 45

Number of interfaces in this area is 1

Area has no authentication

SPF algorithm last executed 00:00:32.680 ago

SPF algorithm executed 1 times

Area ranges are

Number of LSA 1. Checksum Sum 0x006CB6

Number of opaque link LSA 0. Checksum Sum 0x000000

Number of DCbitless LSA 0

Number of indication LSA 0

Number of DoNotAge LSA 0

Flood list length 0

R6#show ip ospf

Routing Process "ospf 1" with ID 6.6.6.6

Start time: 00:03:00.672, Time elapsed: 00:20:35.164

Supports only single TOS(TOS0) routes

Supports opaque LSA

Supports Link-local Signaling (LLS)

Supports area transit capability

Router is not originating router-LSAs with maximum metric

Initial SPF schedule delay 5000 msecs

Minimum hold time between two consecutive SPFs 10000 msecs

Maximum wait time between two consecutive SPFs 10000 msecs

Incremental-SPF disabled

Minimum LSA interval 5 secs

Minimum LSA arrival 1000 msecs

Page 14: Area Esp Osf Egt

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LSA group pacing timer 240 secs

Interface flood pacing timer 33 msecs

Retransmission pacing timer 66 msecs

Number of external LSA 4. Checksum Sum 0x009B27

Number of opaque AS LSA 0. Checksum Sum 0x000000

Number of DCbitless external and opaque AS LSA 0

Number of DoNotAge external and opaque AS LSA 0

Number of areas in this router is 2. 2 normal 0 stub 0 nssa

Number of areas transit capable is 0

External flood list length 0

Area BACKBONE(0)

Number of interfaces in this area is 1

Area has no authentication

SPF algorithm last executed 00:01:07.000 ago

SPF algorithm executed 8 times

Area ranges are

Number of LSA 5. Checksum Sum 0x027AB0

Number of opaque link LSA 0. Checksum Sum 0x000000

Number of DCbitless LSA 0

Number of indication LSA 0

Number of DoNotAge LSA 0

Flood list length 0

Area 67

Number of interfaces in this area is 1

Area has no authentication

SPF algorithm last executed 00:01:07.000 ago

SPF algorithm executed 3 times

Area ranges are

Number of LSA 1. Checksum Sum 0x00CF41

Number of opaque link LSA 0. Checksum Sum 0x000000

Number of DCbitless LSA 0

Number of indication LSA 0

Number of DoNotAge LSA 0

Flood list length 0

ENRUTAMIENTO DE OSPF en cada ROUTER

AREA 23

R3(config)#router ospf 1

R3(config-router)#network 10.23.1.0 0.0.0.255 area 23

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R3(config-router)#router-id 3.3.3.3

R3(config-router)#exit

Verificando:

R3#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

O E1 172.31.3.0 [110/260] via 10.23.1.2, 00:00:28, Serial0/0

O E1 172.31.2.0 [110/260] via 10.23.1.2, 00:00:28, Serial0/0

O E1 172.31.1.0 [110/260] via 10.23.1.2, 00:00:28, Serial0/0

O E1 172.31.0.0 [110/260] via 10.23.1.2, 00:00:28, Serial0/0

172.30.0.0/24 is subnetted, 4 subnets

C 172.30.2.0 is directly connected, Loopback3

C 172.30.3.0 is directly connected, Loopback4

C 172.30.0.0 is directly connected, Loopback1

C 172.30.1.0 is directly connected, Loopback2

10.0.0.0/24 is subnetted, 3 subnets

C 10.23.1.0 is directly connected, Serial0/0

O IA 10.45.1.0 [110/410] via 10.23.1.2, 00:00:35, Serial0/0

O IA 10.100.1.0 [110/210] via 10.23.1.2, 00:03:33, Serial0/0

AREA 45

R5(config)#router ospf 1

R5(config-router)#router-id 5.5.5.5

R5(config-router)#network 10.45.1.0 0.0.0.255 area 45

R5(config-router)#exit

Verificando:

R5#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

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ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

O E1 172.31.3.0 [110/260] via 10.45.1.4, 00:01:11, Serial0/0

O E1 172.31.2.0 [110/260] via 10.45.1.4, 00:01:11, Serial0/0

O E1 172.31.1.0 [110/260] via 10.45.1.4, 00:01:11, Serial0/0

O E1 172.31.0.0 [110/260] via 10.45.1.4, 00:01:11, Serial0/0

10.0.0.0/24 is subnetted, 3 subnets

O IA 10.23.1.0 [110/410] via 10.45.1.4, 00:01:11, Serial0/0

C 10.45.1.0 is directly connected, Serial0/0

O IA 10.100.1.0 [110/210] via 10.45.1.4, 00:01:17, Serial0/0

AREA 67

R7(config)#router ospf 1

R7(config-router)#router-id 7.7.7.7

R7(config-router)#network 10.67.1.0 0.0.0.255 area 67

R7(config-router)#network 10.78.1.0 0.0.0.255 area 78

R7(config-router)#^Z

Verificando:

R7#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

O E1 172.31.3.0 [110/260] via 10.67.1.6, 00:01:00, Serial0/1

O E1 172.31.2.0 [110/260] via 10.67.1.6, 00:01:00, Serial0/1

O E1 172.31.1.0 [110/260] via 10.67.1.6, 00:01:00, Serial0/1

O E1 172.31.0.0 [110/260] via 10.67.1.6, 00:01:00, Serial0/1

10.0.0.0/24 is subnetted, 4 subnets

O IA 10.23.1.0 [110/410] via 10.67.1.6, 00:01:01, Serial0/1

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O IA 10.45.1.0 [110/410] via 10.67.1.6, 00:01:01, Serial0/1

C 10.67.1.0 is directly connected, Serial0/1

O IA 10.100.1.0 [110/210] via 10.67.1.6, 00:01:17, Serial0/1

AREA 78

R8(config)#router ospf 1

R8(config-router)#router-id 8.8.8.8

R8(config-router)#network 10.78.1.0 0.0.0.255 area 78

R8(config-router)#^Z

Verificando:

R8#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/24 is subnetted, 1 subnets

C 10.78.1.0 is directly connected, Serial0/0

Como vemos, R8 no conoce demás rutas OSPF, asi que NO puede hacer ping a ningún IP en el CORE.

R8#ping 10.100.1.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.100.1.2, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5)

Si analizamos la base de Datos de OSPF para este router vemos:

R8#show ip ospf database

OSPF Router with ID (8.8.8.8) (Process ID 1)

Router Link States (Area 78)

Link ID ADV Router Age Seq# Checksum Link count

7.7.7.7 7.7.7.7 341 0x80000005 0x004E2F 2

8.8.8.8 8.8.8.8 340 0x80000003 0x00F188 2

No esta conectado

directamente al CORE. No

conoce mas redes OSPF.

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Type-5 AS External Link States

Link ID ADV Router Age Seq# Checksum Tag

172.31.0.0 1.1.1.1 1876 0x80000003 0x0035FB 0

172.31.1.0 1.1.1.1 1876 0x80000003 0x002A06 0

172.31.2.0 1.1.1.1 1876 0x80000003 0x001F10 0

172.31.3.0 1.1.1.1 1876 0x80000003 0x00141A 0

Es necesario crear una RUTA VIRTUAL entre R7 y R6 para que R8 pueda acceder a la red completa OSPF.

R6(config)#router ospf 1

R6(config-router)#area 67 v

R6(config-router)#area 67 virtual-link 7.7.7.7

R6(config-router)#exit

Verificando:

R8#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/24 is subnetted, 2 subnets

C 10.78.1.0 is directly connected, Serial0/0

O IA 10.67.1.0 [110/400] via 10.78.1.7, 00:00:09, Serial0/0

Probando Ping:

R8#ping 10.100.1.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.100.1.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 4/44/68 ms

R7(config)#router ospf 1

R7(config-router)#area 67 v

R7(config-router)#area 67 virtual-link 6.6.6.6

R7(config-router)#exit

GONZALO
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GONZALO
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Conociendo la base de Datos para OSPF en R8:

R8#show ip ospf database

OSPF Router with ID (8.8.8.8) (Process ID 1)

Router Link States (Area 78)

Link ID ADV Router Age Seq# Checksum Link count

7.7.7.7 7.7.7.7 52 0x80000006 0x004F2C 2

8.8.8.8 8.8.8.8 476 0x80000003 0x00F188 2

Summary Net Link States (Area 78)

Link ID ADV Router Age Seq# Checksum

10.23.1.0 7.7.7.7 37 0x80000001 0x00273C

10.45.1.0 7.7.7.7 37 0x80000001 0x001E2F

10.67.1.0 7.7.7.7 52 0x80000001 0x00D930

10.100.1.0 7.7.7.7 37 0x80000001 0x00B02E

172.30.0.1 7.7.7.7 37 0x80000001 0x009B1D

172.30.1.1 7.7.7.7 37 0x80000001 0x009027

172.30.2.1 7.7.7.7 37 0x80000001 0x008531

172.30.3.1 7.7.7.7 37 0x80000001 0x007A3B

Summary ASB Link States (Area 78)

Link ID ADV Router Age Seq# Checksum

1.1.1.1 7.7.7.7 37 0x80000001 0x00B692

Type-5 AS External Link States

Link ID ADV Router Age Seq# Checksum Tag

172.31.0.0 1.1.1.1 2015 0x80000003 0x0035FB 0

172.31.1.0 1.1.1.1 2015 0x80000003 0x002A06 0

172.31.2.0 1.1.1.1 2015 0x80000003 0x001F10 0

172.31.3.0 1.1.1.1 2015 0x80000003 0x00141A 0

Después de haber configurado OSPF en todos los routers, la tabla de enrutamiento de R1, luce asi:

R1#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

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o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

S 172.31.3.0 is directly connected, Null0

S 172.31.2.0 is directly connected, Null0

S 172.31.1.0 is directly connected, Null0

S 172.31.0.0 is directly connected, Null0

172.30.0.0/32 is subnetted, 4 subnets

O IA 172.30.3.1 [110/211] via 10.100.1.2, 00:00:50, FastEthernet0/0

O IA 172.30.2.1 [110/211] via 10.100.1.2, 00:00:49, FastEthernet0/0

O IA 172.30.1.1 [110/211] via 10.100.1.2, 00:01:00, FastEthernet0/0

O IA 172.30.0.1 [110/211] via 10.100.1.2, 00:01:01, FastEthernet0/0

10.0.0.0/24 is subnetted, 4 subnets

O IA 10.23.1.0 [110/210] via 10.100.1.2, 00:12:31, FastEthernet0/0

O IA 10.45.1.0 [110/210] via 10.100.1.4, 00:12:31, FastEthernet0/0

O IA 10.67.1.0 [110/210] via 10.100.1.6, 00:12:32, FastEthernet0/0

C 10.100.1.0 is directly connected, FastEthernet0/0

Probando ping:

R1# ping 172.30.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.30.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 20/36/64 ms

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Objetivo 2

OSPF nunca debería formar relaciones de vecindario en cualqui er interfaz donde

otros routers OSPF no existen (como se muestra en el diagrama).

Para que OSPF no forme relaciones de vecindario, es necesario poner sus interfaces en MODO PASIVO.

R1(config)#router ospf 1

R1(config-router)#passive-interface default

R1(config-router)#exit

R2(config)#router ospf 1

R2(config-router)#passive-interface default

R2(config-router)#exit

R3(config)#router ospf 1

R3(config-router)#passive-interface default

R3(config-router)#exit

R5(config)#router ospf 1

R5(config-router)#passive-interface default

R5(config-router)#exit

Con esto vemos que no se envían paquetes HELLO, por tanto las rutas OSFP no son publicadas.

R7#show ip route

*Mar 1 00:30:18.315: %SYS-5-CONFIG_I: Configured from console by console

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/24 is subnetted, 2 subnets

C 10.78.1.0 is directly connected, Serial0/0

C 10.67.1.0 is directly connected, Serial0/1

R6(config)#router ospf 1

R6(config-router)#passive-interface default

R6(config-router)#exit

R4(config)#router ospf 1

R4(config-router)#passive-interface default

R4(config-router)#exit

R7(config)#router ospf 1

R7(config-router)#passive-interface default

R7(config-router)#exit

R8(config)#router ospf 1

R8(config-router)#passive-interface default

R8(config-router)#exit

GONZALO
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R1#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

S 172.31.3.0 is directly connected, Null0

S 172.31.2.0 is directly connected, Null0

S 172.31.1.0 is directly connected, Null0

S 172.31.0.0 is directly connected, Null0

10.0.0.0/24 is subnetted, 1 subnets

C 10.100.1.0 is directly connected, FastEthernet0/0

Hay que volver a reactivar las interfaces, excepto las interfaces loopback de R3, porque éstas no necesitan

enviar paquetes HELLO ya que no tienen otros vecinos conectados.

El comando a emplear es la NEGACION del anterior.

R1(config)#router ospf 1

R1(config-router)#no passive-interface default

R1(config-router)#exit

R2(config)#router ospf 1

R2(config-router)#no passive-interface default

R2(config-router)#exit

R6(config)#router ospf 1

R6(config-router)#no passive-interface default

R6(config-router)#exit

R4(config)#router ospf 1

R4(config-router)#no passive-interface default

R4(config-router)#exit

R3(config)#router ospf 1

R3(config-router)#no passive-interface s0/0

R3(config-router)#exit

R5(config)#router ospf 1

R5(config-router)#no passive-interface default

R5(config-router)# exit

R7(config)#router ospf 1

R7(config-router)#no passive-interface default

R7(config-router)#exit

R8(config)#router ospf 1

R8(config-router)#no passive-interface default

R8(config-router)#exit

GONZALO
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Verificando los cambios:

R7#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

O E1 172.31.3.0 [110/260] via 10.67.1.6, 00:00:31, Serial0/1

O E1 172.31.2.0 [110/260] via 10.67.1.6, 00:00:31, Serial0/1

O E1 172.31.1.0 [110/260] via 10.67.1.6, 00:00:31, Serial0/1

O E1 172.31.0.0 [110/260] via 10.67.1.6, 00:00:31, Serial0/1

172.30.0.0/32 is subnetted, 4 subnets

O IA 172.30.3.1 [110/411] via 10.67.1.6, 00:00:31, Serial0/1

O IA 172.30.2.1 [110/411] via 10.67.1.6, 00:00:31, Serial0/1

O IA 172.30.1.1 [110/411] via 10.67.1.6, 00:00:33, Serial0/1

O IA 172.30.0.1 [110/411] via 10.67.1.6, 00:00:33, Serial0/1

10.0.0.0/24 is subnetted, 5 subnets

O IA 10.23.1.0 [110/410] via 10.67.1.6, 00:00:33, Serial0/1

O IA 10.45.1.0 [110/410] via 10.67.1.6, 00:00:33, Serial0/1

C 10.78.1.0 is directly connected, Serial0/0

C 10.67.1.0 is directly connected, Serial0/1

O IA 10.100.1.0 [110/210] via 10.67.1.6, 00:00:34, Serial0/1

R1#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

S 172.31.3.0 is directly connected, Null0

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S 172.31.2.0 is directly connected, Null0

S 172.31.1.0 is directly connected, Null0

S 172.31.0.0 is directly connected, Null0

172.30.0.0/32 is subnetted, 4 subnets

O IA 172.30.3.1 [110/211] via 10.100.1.2, 00:01:49, FastEthernet0/0

O IA 172.30.2.1 [110/211] via 10.100.1.2, 00:01:49, FastEthernet0/0

O IA 172.30.1.1 [110/211] via 10.100.1.2, 00:01:49, FastEthernet0/0

O IA 172.30.0.1 [110/211] via 10.100.1.2, 00:01:51, FastEthernet0/0

10.0.0.0/24 is subnetted, 4 subnets

O IA 10.23.1.0 [110/210] via 10.100.1.2, 00:01:51, FastEthernet0/0

O IA 10.45.1.0 [110/210] via 10.100.1.4, 00:01:51, FastEthernet0/0

O IA 10.67.1.0 [110/210] via 10.100.1.6, 00:01:51, FastEthernet0/0

C 10.100.1.0 is directly connected, FastEthernet0/0

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Objetivo 3

Todos los routers del área 0 deberían usar autenticación MD5 con sus vecinos. Los

routers en el área 23 deberían ser configurados para soportar autenticación en texto

plano con sus vecinos. Todas las claves deben ser configuradas como “cisco”.

CONFIGURANDO AUTENTICACION MD5 EN AREA 0

R1(config)#int f0/0

R1(config-if)#ip ospf authentication message-digest

R1(config-if)#ip ospf message-digest-key 1 md5 cisco

R1(config-if)#exit

R2(config)#int f0/0

R2(config-if)#ip ospf authentication message-digest

R2(config-if)#ip ospf message-digest-key 1 md5 cisco

R2(config-if)#exit

R6(config)#int f0/0

R6(config-if)#ip ospf authentication message-digest

R6(config-if)#ip ospf message-digest-key 1 md5 cisco

R6(config-if)#exit

R4(config)#int f0/0

R4(config-if)#ip ospf authentication message-digest

R4(config-if)#ip ospf message-digest-key 1 md5 cisco

R4(config-if)# exit

Usando Wireshark para capturar el mensaje donde se observa la autenticación MD5.

Password Encriptado

GONZALO
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CONFIGURANDO AUTENTICACION EN TEXTO PLANO EN AREA 23

R2(config)#int s0/0

R2(config-if)#ip ospf authentication

R2(config-if)#ip ospf authentication-key cisco

R2(config-if)#

R3(config)#int s0/0

R3(config-if)#ip ospf authentication

R3(config-if)#ip ospf authentication-key cisco

R3(config-if)#

Password en Texto Plano

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Objetivo 4

Los routers del área 45 están limitados en su capacidad y no deberían recibir rutas de

redes externas al dominio OSPF. Estos routers deberían alcanzar la red externa

usando una ruta por defecto la cual no puede ser configurada estáticamente.

CONFIGURANDO AREA STUB EN EL ROUTER R4 Y R5

R4(config)#router ospf 1

R4(config-router)#area 45 stub

R4(config-router)#exit

R5(config)#router ospf 1

R5(config-router)#area 45 stub

R5(config-router)#exit

VERIFICANDO LOS CAMBIOS

R4#show ip ospf database

OSPF Router with ID (4.4.4.4) (Process ID 1)

Router Link States (Area 0)

Link ID ADV Router Age Seq# Checksum Link count

1.1.1.1 1.1.1.1 248 0x8000000A 0x00230E 1

2.2.2.2 2.2.2.2 248 0x8000000C 0x00DD49 1

4.4.4.4 4.4.4.4 383 0x8000000B 0x0063B2 1

6.6.6.6 6.6.6.6 944 0x8000000B 0x00D8E0 2

7.7.7.7 7.7.7.7 2 (DNA) 0x80000002 0x00D2EE 1

Net Link States (Area 0)

Link ID ADV Router Age Seq# Checksum

10.100.1.6 6.6.6.6 384 0x80000007 0x003D2D

Summary Net Link States (Area 0)

Link ID ADV Router Age Seq# Checksum

10.23.1.0 2.2.2.2 373 0x80000003 0x007EC9

10.45.1.0 4.4.4.4 1869 0x80000002 0x003BEF

10.67.1.0 6.6.6.6 1430 0x80000002 0x00F517

10.67.1.0 7.7.7.7 7 (DNA) 0x80000001 0x00D930

10.78.1.0 7.7.7.7 7 (DNA) 0x80000001 0x0055A9

172.30.0.1 2.2.2.2 1445 0x80000001 0x00F6A8

172.30.1.1 2.2.2.2 1445 0x80000001 0x00EBB2

172.30.2.1 2.2.2.2 1445 0x80000001 0x00E0BC

GONZALO
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172.30.3.1 2.2.2.2 1445 0x80000001 0x00D5C6

Router Link States (Area 45)

Link ID ADV Router Age Seq# Checksum Link count

4.4.4.4 4.4.4.4 27 0x8000000A 0x00954D 2

5.5.5.5 5.5.5.5 25 0x80000006 0x003AA8 2

Summary Net Link States (Area 45)

Link ID ADV Router Age Seq# Checksum

0.0.0.0 4.4.4.4 38 0x80000001 0x0039F4

10.23.1.0 4.4.4.4 38 0x80000002 0x00C672

10.67.1.0 4.4.4.4 38 0x80000002 0x00B458

10.78.1.0 4.4.4.4 38 0x80000002 0x000732

10.100.1.0 4.4.4.4 38 0x80000006 0x004769

172.30.0.1 4.4.4.4 39 0x80000002 0x003B53

172.30.1.1 4.4.4.4 39 0x80000002 0x00305D

172.30.2.1 4.4.4.4 39 0x80000002 0x002567

172.30.3.1 4.4.4.4 39 0x80000002 0x001A71

Type-5 AS External Link States

Link ID ADV Router Age Seq# Checksum Tag

172.31.0.0 1.1.1.1 888 0x80000004 0x0033FC 0

172.31.1.0 1.1.1.1 888 0x80000004 0x002807 0

172.31.2.0 1.1.1.1 888 0x80000004 0x001D11 0

172.31.3.0 1.1.1.1 888 0x80000004 0x00121B 0

R5#show ip ospf database

OSPF Router with ID (5.5.5.5) (Process ID 1)

Router Link States (Area 45)

Link ID ADV Router Age Seq# Checksum Link count

4.4.4.4 4.4.4.4 43 0x8000000A 0x00954D 2

5.5.5.5 5.5.5.5 39 0x80000006 0x003AA8 2

Summary Net Link States (Area 45)

Link ID ADV Router Age Seq# Checksum

0.0.0.0 4.4.4.4 54 0x80000001 0x0039F4

10.23.1.0 4.4.4.4 54 0x80000002 0x00C672

10.67.1.0 4.4.4.4 54 0x80000002 0x00B458

10.78.1.0 4.4.4.4 54 0x80000002 0x000732

10.100.1.0 4.4.4.4 54 0x80000006 0x004769

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172.30.0.1 4.4.4.4 54 0x80000002 0x003B53

172.30.1.1 4.4.4.4 54 0x80000002 0x00305D

172.30.2.1 4.4.4.4 54 0x80000002 0x002567

172.30.3.1 4.4.4.4 54 0x80000002 0x001A71

Como vemos en un STUB AREA, no se acepta información de rutas externas al sistema autónomo (ninguna

redistribución), como las rutas desde orígenes no OSPF.

Si los routers necesitan enrutar hacia redes ubicada fuera del sistema autónomo OSPF, utilizan una ruta por

defecto 0.0.0.0/0 que es enviada por el ABR (en este caso R4) hacia los routers internos del área STUB.

Usualmente, en esta área no se permiten ASBR (a menos que el ABR sea al mismo tiempo un ASBR).

Configurando el AREA STUB (en AREA 45) los paquetes LSA tipo 5 (E1 y E2) son filtrados de la tabla de

enrutamiento.

CONOCIENDO LA TABLA DE ENRUTAMIENTO EN R5

R5#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is 10.45.1.4 to network 0.0.0.0

172.30.0.0/32 is subnetted, 4 subnets

O IA 172.30.3.1 [110/411] via 10.45.1.4, 00:02:55, Serial0/0

O IA 172.30.2.1 [110/411] via 10.45.1.4, 00:02:55, Serial0/0

O IA 172.30.1.1 [110/411] via 10.45.1.4, 00:02:55, Serial0/0

O IA 172.30.0.1 [110/411] via 10.45.1.4, 00:02:55, Serial0/0

10.0.0.0/24 is subnetted, 5 subnets

O IA 10.23.1.0 [110/410] via 10.45.1.4, 00:02:55, Serial0/0

C 10.45.1.0 is directly connected, Serial0/0

O IA 10.78.1.0 [110/610] via 10.45.1.4, 00:02:56, Serial0/0

O IA 10.67.1.0 [110/410] via 10.45.1.4, 00:02:56, Serial0/0

O IA 10.100.1.0 [110/210] via 10.45.1.4, 00:02:56, Serial0/0

O*IA 0.0.0.0/0 [110/201] via 10.45.1.4, 00:02:56, Serial0/0

PROBANDO CONECTIVIDAD

R5#ping 10.100.1.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.100.1.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 4/32/52 ms

No conoce las rutas

estáticas de R1, pero SI

conoce una ruta por

Defecto

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Objetivo 5

Los routers del área 23 no deben recibir ningún LSA tipo 3, 4 o 5 del resto de la red

OSPF. Estos routers deberían alcanzar la red externa usando una ruta por defecto con

un costo inicial OSPF de 100.

Para que ningún LSA tipo 3, 4 o 5 sean recibidos en el área 23, se debe configurar esta área como un OSPF

TOTALLY SUTB AREA, así se filtraran paquetes LSA tipo 5, tipo 3 IA O, y tipo 4 IA O de la tabla de

enrutamiento.

Esta área es propietaria de Cisco y no acepta rutas de Sistemas Autónomos externos (redistribución) o rutas

sumarizadas desde otras áreas internas del sistema autónomo. Al igual que en las áreas Stub, los ABR envían

una ruta por defecto para todas la rutas externas y sumarizadas (a diferencia del STUB).

TABLA DE ENRUTAMIENTO R3 antes de convertirse en AREA TOTALLY STUB

R3#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

O E1 172.31.3.0 [110/260] via 10.23.1.2, 00:10:46, Serial0/0

O E1 172.31.2.0 [110/260] via 10.23.1.2, 00:10:46, Serial0/0

O E1 172.31.1.0 [110/260] via 10.23.1.2, 00:10:46, Serial0/0

O E1 172.31.0.0 [110/260] via 10.23.1.2, 00:10:46, Serial0/0

172.30.0.0/24 is subnetted, 4 subnets

C 172.30.2.0 is directly connected, Loopback3

C 172.30.3.0 is directly connected, Loopback4

C 172.30.0.0 is directly connected, Loopback1

C 172.30.1.0 is directly connected, Loopback2

10.0.0.0/24 is subnetted, 4 subnets

C 10.23.1.0 is directly connected, Serial0/0

O IA 10.45.1.0 [110/410] via 10.23.1.2, 00:17:44, Serial0/0

O IA 10.67.1.0 [110/410] via 10.23.1.2, 00:10:54, Serial0/0

O IA 10.100.1.0 [110/210] via 10.23.1.2, 00:23:52, Serial0/0

CONFIGURANDO AREA TOTALLY STUB

R2(config)#router ospf 1

R2(config-router)#area 23 stub no-summary

R2(config-router)#exit

Conoce rutas

externas a

OSPF

GONZALO
Highlight
GONZALO
Highlight
GONZALO
Highlight
GONZALO
Highlight
Page 31: Area Esp Osf Egt

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R3(config)#router ospf 1

R3(config-router)#area 23 stub no-summary

R3(config-router)#exit

VERIFICANDO SU ACTUALIZACION

R2#show ip ospf

Routing Process "ospf 1" with ID 2.2.2.2

Start time: 00:05:11.500, Time elapsed: 01:56:00.676

Supports only single TOS(TOS0) routes

Supports opaque LSA

Supports Link-local Signaling (LLS)

Supports area transit capability

It is an area border router

Area BACKBONE(0)

Number of interfaces in this area is 1

Area 23

Number of interfaces in this area is 1

It is a stub area, no summary LSA in this area

generates stub default route with cost 1

R3#show ip ospf

Routing Process "ospf 1" with ID 3.3.3.3

Start time: 00:06:50.188, Time elapsed: 01:17:38.624

Supports only single TOS(TOS0) routes

Area 23

Number of interfaces in this area is 5 (4 loopback)

It is a stub area

VERIFICANDO TABLAS DE ENRUTAMIENTO EN AREA 23

R2#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

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O E1 172.31.3.0 [110/60] via 10.100.1.1, 00:04:19, FastEthernet0/0

O E1 172.31.2.0 [110/60] via 10.100.1.1, 00:04:19, FastEthernet0/0

O E1 172.31.1.0 [110/60] via 10.100.1.1, 00:04:19, FastEthernet0/0

O E1 172.31.0.0 [110/60] via 10.100.1.1, 00:04:19, FastEthernet0/0

172.30.0.0/32 is subnetted, 4 subnets

O 172.30.3.1 [110/201] via 10.23.1.3, 00:04:19, Serial0/0

O 172.30.2.1 [110/201] via 10.23.1.3, 00:04:19, Serial0/0

O 172.30.1.1 [110/201] via 10.23.1.3, 00:04:20, Serial0/0

O 172.30.0.1 [110/201] via 10.23.1.3, 00:04:20, Serial0/0

10.0.0.0/24 is subnetted, 5 subnets

C 10.23.1.0 is directly connected, Serial0/0

O IA 10.45.1.0 [110/210] via 10.100.1.4, 00:04:20, FastEthernet0/0

O IA 10.78.1.0 [110/410] via 10.100.1.6, 00:04:22, FastEthernet0/0

O IA 10.67.1.0 [110/210] via 10.100.1.6, 00:04:22, FastEthernet0/0

C 10.100.1.0 is directly connected, FastEthernet0/0

R3#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is 10.23.1.2 to network 0.0.0.0

172.30.0.0/24 is subnetted, 4 subnets

C 172.30.2.0 is directly connected, Loopback3

C 172.30.3.0 is directly connected, Loopback4

C 172.30.0.0 is directly connected, Loopback1

C 172.30.1.0 is directly connected, Loopback2

10.0.0.0/24 is subnetted, 1 subnets

C 10.23.1.0 is directly connected, Serial0/0

O*IA 0.0.0.0/0 [110/201] via 10.23.1.2, 00:04:22, Serial0/0

AGREGANDO COSTO INICIAL OSPF 100 PARA RUTAS POR DEFECTO

R2(config)#router ospf 1

R2(config-router)#area 23 default-cost 100

R2(config-router)#exit

Solo conoce la RUTA

POR DEFECTO

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R2#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

O E1 172.31.3.0 [110/60] via 10.100.1.1, 00:06:04, FastEthernet0/0

O E1 172.31.2.0 [110/60] via 10.100.1.1, 00:06:04, FastEthernet0/0

O E1 172.31.1.0 [110/60] via 10.100.1.1, 00:06:04, FastEthernet0/0

O E1 172.31.0.0 [110/60] via 10.100.1.1, 00:06:04, FastEthernet0/0

172.30.0.0/32 is subnetted, 4 subnets

O 172.30.3.1 [110/201] via 10.23.1.3, 00:06:04, Serial0/0

O 172.30.2.1 [110/201] via 10.23.1.3, 00:06:04, Serial0/0

O 172.30.1.1 [110/201] via 10.23.1.3, 00:06:05, Serial0/0

O 172.30.0.1 [110/201] via 10.23.1.3, 00:06:05, Serial0/0

10.0.0.0/24 is subnetted, 5 subnets

C 10.23.1.0 is directly connected, Serial0/0

O IA 10.45.1.0 [110/210] via 10.100.1.4, 00:06:05, FastEthernet0/0

O IA 10.78.1.0 [110/410] via 10.100.1.6, 00:06:08, FastEthernet0/0

O IA 10.67.1.0 [110/210] via 10.100.1.6, 00:06:08, FastEthernet0/0

C 10.100.1.0 is directly connected, FastEthernet0/0

R3(config)#router ospf 1

R3(config-router)#area 23 default-cost 100

R3(config-router)#exit

R3#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is 10.23.1.2 to network 0.0.0.0

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172.30.0.0/24 is subnetted, 4 subnets

C 172.30.2.0 is directly connected, Loopback3

C 172.30.3.0 is directly connected, Loopback4

C 172.30.0.0 is directly connected, Loopback1

C 172.30.1.0 is directly connected, Loopback2

10.0.0.0/24 is subnetted, 1 subnets

C 10.23.1.0 is directly connected, Serial0/0

O*IA 0.0.0.0/0 [110/300] via 10.23.1.2, 00:01:04, Serial0/0

Objetivo 6

Todos los routers deberían poder hacer ping a cada ruta en la tabla de enrutamiento

OSPF.

R1#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.31.0.0/24 is subnetted, 4 subnets

S 172.31.3.0 is directly connected, Null0

S 172.31.2.0 is directly connected, Null0

S 172.31.1.0 is directly connected, Null0

S 172.31.0.0 is directly connected, Null0

172.30.0.0/24 is subnetted, 4 subnets

O IA 172.30.2.0 [110/211] via 10.100.1.2, 00:00:47, FastEthernet0/0

O IA 172.30.3.0 [110/211] via 10.100.1.2, 00:00:47, FastEthernet0/0

O IA 172.30.0.0 [110/211] via 10.100.1.2, 00:00:48, FastEthernet0/0

O IA 172.30.1.0 [110/211] via 10.100.1.2, 00:00:48, FastEthernet0/0

10.0.0.0/24 is subnetted, 5 subnets

O IA 10.23.1.0 [110/210] via 10.100.1.2, 00:00:48, FastEthernet0/0

O IA 10.45.1.0 [110/210] via 10.100.1.4, 00:00:49, FastEthernet0/0

O IA 10.78.1.0 [110/410] via 10.100.1.6, 00:00:49, FastEthernet0/0

O IA 10.67.1.0 [110/210] via 10.100.1.6, 00:00:49, FastEthernet0/0

C 10.100.1.0 is directly connected, FastEthernet0/0

O E1 192.168.1.0/24 [110/230] via 10.100.1.4, 00:00:49, FastEthernet0/0

Se incremento su

COSTO INICIAL en 100

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R1#ping 10.45.1.5

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.45.1.5, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 4/37/52 ms

R1#ping 10.78.1.8

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.78.1.8, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/37/60 ms

R1#ping 10.23.1.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.23.1.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/28/52 ms

R1#ping 10.67.1.7

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.67.1.7, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/41/100 ms

R5#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is 10.45.1.4 to network 0.0.0.0

172.30.0.0/32 is subnetted, 4 subnets

O IA 172.30.3.1 [110/411] via 10.45.1.4, 00:02:55, Serial0/0

O IA 172.30.2.1 [110/411] via 10.45.1.4, 00:02:55, Serial0/0

O IA 172.30.1.1 [110/411] via 10.45.1.4, 00:02:55, Serial0/0

O IA 172.30.0.1 [110/411] via 10.45.1.4, 00:02:55, Serial0/0

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10.0.0.0/24 is subnetted, 5 subnets

O IA 10.23.1.0 [110/410] via 10.45.1.4, 00:02:55, Serial0/0

C 10.45.1.0 is directly connected, Serial0/0

O IA 10.78.1.0 [110/610] via 10.45.1.4, 00:02:56, Serial0/0

O IA 10.67.1.0 [110/410] via 10.45.1.4, 00:02:56, Serial0/0

O IA 10.100.1.0 [110/210] via 10.45.1.4, 00:02:56, Serial0/0

O*IA 0.0.0.0/0 [110/201] via 10.45.1.4, 00:02:56, Serial0/0

R5#ping 172.30.0.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.30.0.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 24/40/76 ms

R5#ping 10.78.1.8

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.78.1.8, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/36/52 ms

R5#ping 10.23.1.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.23.1.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/35/68 ms

R5#ping 10.100.1.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.100.1.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/32/52 ms

R5#ping 10.67.1.7

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.67.1.7, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 24/41/68 ms

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Objetivo 7

Configurar EIGRP en R5 y R9. Publicar en EIGRP todas las loopbacks de R9. Una vez

hecho esto configurar redistribución mutua entre EIGRP y OSPF en R5. Cambiar el

tipo del área 45 para que soporte ASBRs, y una vez hecho esto configurar R4 para que

genere la ruta por defecto correspondiente.

CONFIGURANDO R9

INTERFACES

R9

R9(config)#int s0/0

R9(config-if)#ip address 192.168.1.9 255.255.255.0

R9(config-if)#bandwidth 500

R9(config-if)#no shutdown

R9(config-if)#exit

R9(config)#int loopback 1

R9(config-if)#ip address 172.16.0.1 255.255.255.0

R9(config-if)#no shutdown

R9(config-if)#exit

R9(config)#int loopback 2

R9(config-if)#ip address 172.16.1.1 255.255.255.0

R9(config-if)#no shutdown

R9(config-if)#exit

R9(config)#int loopback 3

R9(config-if)#ip address 172.16.2.1 255.255.255.0

R9(config-if)#no shutdown

R9(config-if)#exit

R9(config)#int loopback 4

R9(config-if)#ip address 172.16.3.1 255.255.255.0

R5

R5(config)#int s0/1

R5(config-if)#ip address 192.168.1.5 255.255.255.0

R5(config-if)#bandwidth 500

R5(config-if)#clock rate 500000

R5(config-if)#no shutdown

R5(config-if)#exit

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R9(config-if)#no shutdown

R9(config-if)#exit

ENRUTAMIENTO EIGPR

R5(config)#router eigrp 100

R5(config-router)#network 192.168.1.0

R5(config-router)# exit

VERIFICANDO EIGRP

R5#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is 10.45.1.4 to network 0.0.0.0

172.30.0.0/32 is subnetted, 4 subnets

O IA 172.30.3.1 [110/411] via 10.45.1.4, 00:21:10, Serial0/0

O IA 172.30.2.1 [110/411] via 10.45.1.4, 00:21:10, Serial0/0

O IA 172.30.1.1 [110/411] via 10.45.1.4, 00:21:10, Serial0/0

O IA 172.30.0.1 [110/411] via 10.45.1.4, 00:21:10, Serial0/0

10.0.0.0/24 is subnetted, 5 subnets

O IA 10.23.1.0 [110/410] via 10.45.1.4, 00:27:24, Serial0/0

C 10.45.1.0 is directly connected, Serial0/0

O IA 10.78.1.0 [110/610] via 10.45.1.4, 00:27:26, Serial0/0

O IA 10.67.1.0 [110/410] via 10.45.1.4, 00:27:26, Serial0/0

O IA 10.100.1.0 [110/210] via 10.45.1.4, 00:27:26, Serial0/0

O*IA 0.0.0.0/0 [110/201] via 10.45.1.4, 00:27:26, Serial0/0

R9#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

R9(config)#router eigrp 100

R9(config-router)#network 192.168.1.0

R9(config-router)#

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Gateway of last resort is not set

172.16.0.0/24 is subnetted, 4 subnets

C 172.16.0.0 is directly connected, Loopback1

C 172.16.1.0 is directly connected, Loopback2

C 172.16.2.0 is directly connected, Loopback3

C 172.16.3.0 is directly connected, Loopback4

C 192.168.1.0/24 is directly connected, Serial0/0

PUBLICANDO LOOPBACKS DE R9 EN EIGRP

R9(config)#router eigrp 100

R9(config-router)#network 172.16.0.0 0.0.0.255

R9(config-router)#network 172.16.1.0 0.0.0.255

R9(config-router)#network 172.16.2.0 0.0.0.255

R9(config-router)#network 172.16.3.0 0.0.0.255

CAMBIANDO EL AREA 45 DE AREA STUB A NSSA

R5(config)#router ospf 1

R5(config-router)#no area 45 stub

R5(config-router)#are 45 nssa

R4(config)#router ospf 1

R4(config-router)#no area 45 stub

R4(config-router)#area 45 nssa

CONFIGURANDO REDISTRIBUCION ENTRE EIGPR Y OSPF EN R5

R5(config)#router eigrp 100

R5(config-router)#redistribute ospf 1 metric 100 100 100 100 100

R5(config-router)# exit

R5(config)#router ospf 1

R5(config-router)#redistribute eigrp 100 subnets metric-type 1

R5(config-router)# exit

CONFIGURANDO RUTA POR DEFECTO

R5(config)#router ospf 1

R5(config-router)#area 45 nssa default-information-originate

GONZALO
Highlight
GONZALO
Highlight
GONZALO
Highlight
GONZALO
Highlight
GONZALO
Highlight
Page 40: Area Esp Osf Egt

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R5(config-router)#exit

R9#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks

C 172.16.0.0/24 is directly connected, Loopback1

D 172.16.0.0/16 is a summary, 00:01:28, Null0

C 172.16.1.0/24 is directly connected, Loopback2

C 172.16.2.0/24 is directly connected, Loopback3

C 172.16.3.0/24 is directly connected, Loopback4

172.30.0.0/32 is subnetted, 4 subnets

D EX 172.30.3.1 [170/26137600] via 192.168.1.5, 00:01:28, Serial0/0

D EX 172.30.2.1 [170/26137600] via 192.168.1.5, 00:01:28, Serial0/0

D EX 172.30.1.1 [170/26137600] via 192.168.1.5, 00:01:29, Serial0/0

D EX 172.30.0.1 [170/26137600] via 192.168.1.5, 00:01:29, Serial0/0

10.0.0.0/24 is subnetted, 5 subnets

D EX 10.23.1.0 [170/26137600] via 192.168.1.5, 00:01:29, Serial0/0

D EX 10.45.1.0 [170/26137600] via 192.168.1.5, 00:01:30, Serial0/0

D EX 10.78.1.0 [170/26137600] via 192.168.1.5, 00:01:30, Serial0/0

D EX 10.67.1.0 [170/26137600] via 192.168.1.5, 00:01:30, Serial0/0

D EX 10.100.1.0 [170/26137600] via 192.168.1.5, 00:01:30, Serial0/0

C 192.168.1.0/24 is directly connected, Serial0/0

R9#show ip eigrp 100 neighbors

IP-EIGRP neighbors for process 100

H Address Interface Hold Uptime SRTT RTO Q Seq

(sec) (ms) Cnt Num

0 192.168.1.5 Se0/0 11 00:05:27 67 402 0 3

R9#show ip eigrp 100 topology

IP-EIGRP Topology Table for AS(100)/ID(172.16.3.1)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

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r - reply Status, s - sia Status

P 10.23.1.0/24, 1 successors, FD is 26137600

via 192.168.1.5 (26137600/25625600), Serial0/0

P 10.45.1.0/24, 1 successors, FD is 26137600

via 192.168.1.5 (26137600/25625600), Serial0/0

P 10.78.1.0/24, 1 successors, FD is 26137600

via 192.168.1.5 (26137600/25625600), Serial0/0

P 10.67.1.0/24, 1 successors, FD is 26137600

via 192.168.1.5 (26137600/25625600), Serial0/0

P 192.168.1.0/24, 1 successors, FD is 5632000

via Connected, Serial0/0

P 10.100.1.0/24, 1 successors, FD is 26137600

via 192.168.1.5 (26137600/25625600), Serial0/0

P 172.30.3.1/32, 1 successors, FD is 26137600

via 192.168.1.5 (26137600/25625600), Serial0/0

P 172.30.2.1/32, 1 successors, FD is 26137600

via 192.168.1.5 (26137600/25625600), Serial0/0

P 172.30.1.1/32, 1 successors, FD is 26137600

via 192.168.1.5 (26137600/25625600), Serial0/0

P 172.30.0.1/32, 1 successors, FD is 26137600

via 192.168.1.5 (26137600/25625600), Serial0/0

P 172.16.0.0/16, 1 successors, FD is 128256

via Summary (128256/0), Null0

P 172.16.0.0/24, 1 successors, FD is 128256

via Connected, Loopback1

P 172.16.1.0/24, 1 successors, FD is 128256

via Connected, Loopback2

P 172.16.2.0/24, 1 successors, FD is 128256

via Connected, Loopback3

P 172.16.3.0/24, 1 successors, FD is 128256

via Connected, Loopback4

R5#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, * - candidate default, U - per-user static route

o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

Page 42: Area Esp Osf Egt

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D 172.16.0.0/16 [90/5760000] via 192.168.1.9, 00:01:12, Serial0/1

172.30.0.0/24 is subnetted, 4 subnets

O IA 172.30.2.0 [110/411] via 10.45.1.4, 00:00:26, Serial0/0

O IA 172.30.3.0 [110/411] via 10.45.1.4, 00:00:26, Serial0/0

O IA 172.30.0.0 [110/411] via 10.45.1.4, 00:00:26, Serial0/0

O IA 172.30.1.0 [110/411] via 10.45.1.4, 00:00:26, Serial0/0

10.0.0.0/24 is subnetted, 5 subnets

O IA 10.23.1.0 [110/410] via 10.45.1.4, 00:00:26, Serial0/0

C 10.45.1.0 is directly connected, Serial0/0

O IA 10.78.1.0 [110/610] via 10.45.1.4, 00:00:28, Serial0/0

O IA 10.67.1.0 [110/410] via 10.45.1.4, 00:00:28, Serial0/0

O IA 10.100.1.0 [110/210] via 10.45.1.4, 00:00:59, Serial0/0

C 192.168.1.0/24 is directly connected, Serial0/1

Objetivo 8

Todos los routers deberían poder hacer ping a cada ruta en la tabla de enrutamiento

atravesando los dominios OSPF y EIGRP.

Desde EIGRP a OSPF

R9#ping 10.67.1.7

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.67.1.7, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/49/92 ms

R9#ping 10.23.1.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.23.1.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/55/96 ms

R9#ping 172.30.0.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.30.0.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 4/44/112 ms

R9#ping 172.30.1.1

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42

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.30.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 24/40/64 ms

R9#ping 10.78.1.8

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.78.1.8, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 36/51/88 ms

Desde OSPF a EIGRP

R3#ping 192.168.1.9

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.9, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 40/65/108 ms

R3#ping 172.16.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 20/59/108 ms

R4#ping 172.16.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 4/24/60 ms

R8#ping 192.168.1.9

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.9, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 28/48/76 ms

R6#ping 172.16.2.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds:

!!!!!

Page 44: Area Esp Osf Egt

43

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/28/72 ms

Comentarios y Conclusiones

- Cuando es necesario filtrar paquetes LSA tipo 3,4 o 5 se configura los distintos tipos de Áreas de OSPF

como el STUB AREA, que no acepta información acerca de rutas externas al sistema autónomo; el

TOTALLY STUBBY AREA no acepta rutas de sistemas autónomos externos (ninguna redistribución) o

rutas sumarizadas desde otras áreas internas del sistema autónomo, al igual que el STUB los ABR

envían una ruta por defecto para todas las rutas externas. En el área NSSA existen LSA tipo 7, son

similares al área STUB porque no aceptan información de rutas externas al mundo OSPF, pero la

diferencia esta en que NSSA si acepta un ASBR que se conecte con otros protocolos de enrutamiento

(por ejemplo RIP, EIGRP, etc). El TOTALLY STUBBY NSSA no permite rutas externas ni sumarizadas,

pero si permite un ASBR como en NSSA.

- Para verificar el efecto producido por los cambios hechos en los routers, es recomendable usar la

variedad de los comandos de show y otros como show running-config y show ip route.

- Cuando se trata de interconectar dos protocolos de enrutamiento distintos, es necesario inyectar las

tablas de ruteo de uno en el otro.

Page 45: Area Esp Osf Egt

44

ANEXOS

R1#show running-config

Building configuration...

Current configuration : 1057 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname R1

!

boot-start-marker

boot-end-marker

!

!

no aaa new-model

memory-size iomem 5

ip cef

!

ip auth-proxy max-nodata-conns 3

ip admission max-nodata-conns 3

!

interface FastEthernet0/0

ip address 10.100.1.1 255.255.255.0

ip ospf authentication message-digest

ip ospf message-digest-key 1 md5 cisco

duplex auto

speed auto

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

router ospf 1

router-id 1.1.1.1

log-adjacency-changes

redistribute static metric 50 metric-type 1 subnets

network 10.100.1.0 0.0.0.255 area 0

!

Autenticación MD5

Redistribución Rutas Estáticas

Page 46: Area Esp Osf Egt

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ip forward-protocol nd

ip route 172.31.0.0 255.255.255.0 Null0

ip route 172.31.1.0 255.255.255.0 Null0

ip route 172.31.2.0 255.255.255.0 Null0

ip route 172.31.3.0 255.255.255.0 Null0

!

!

ip http server

no ip http secure-server

!

control-plane

!

line con 0

line aux 0

line vty 0 4

login

!

!

End

R2#show running-config

Building configuration...

Current configuration : 1150 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname R2

!

boot-start-marker

boot-end-marker

!

no aaa new-model

memory-size iomem 5

ip cef

!

ip auth-proxy max-nodata-conns 3

ip admission max-nodata-conns 3

!

Rutas Estáticas Externas

Page 47: Area Esp Osf Egt

46

interface FastEthernet0/0

ip address 10.100.1.2 255.255.255.0

ip ospf authentication message-digest

ip ospf message-digest-key 1 md5 cisco

duplex auto

speed auto

!

interface Serial0/0

bandwidth 500

ip address 10.23.1.2 255.255.255.0

ip ospf authentication

ip ospf authentication-key cisco

clock rate 500000

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/1

no ip address

shutdown

clock rate 2000000

!

router ospf 1

router-id 2.2.2.2

log-adjacency-changes

area 23 stub no-summary

area 23 default-cost 100

network 10.23.1.0 0.0.0.255 area 23

network 10.100.1.0 0.0.0.255 area 0

!

ip forward-protocol nd

!

ip http server

no ip http secure-server

!

control-plane

!

line con 0

line aux 0

line vty 0 4

Autenticación MD5

Autenticación Texto Plano

Totally Stub

Page 48: Area Esp Osf Egt

47

login

!

!

End

R6#show running-config

Building configuration...

Current configuration : 1070 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname R6

!

boot-start-marker

boot-end-marker

!

no aaa new-model

memory-size iomem 5

ip cef

!

ip auth-proxy max-nodata-conns 3

ip admission max-nodata-conns 3

!

interface FastEthernet0/0

ip address 10.100.1.6 255.255.255.0

ip ospf authentication message-digest

ip ospf message-digest-key 1 md5 cisco

duplex auto

speed auto

!

interface Serial0/0

bandwidth 500

ip address 10.67.1.6 255.255.255.0

clock rate 500000

!

interface FastEthernet0/1

no ip address

shutdown

Autenticación MD5

Page 49: Area Esp Osf Egt

48

duplex auto

speed auto

!

interface Serial0/1

no ip address

shutdown

clock rate 2000000

!

router ospf 1

router-id 6.6.6.6

log-adjacency-changes

area 67 virtual-link 7.7.7.7

network 10.67.1.0 0.0.0.255 area 67

network 10.100.1.0 0.0.0.255 area 0

!

ip forward-protocol nd

!

ip http server

no ip http secure-server

!

control-plane

!

line con 0

line aux 0

line vty 0 4

login

!

!

End

R4#show running-config

Building configuration...

Current configuration : 1054 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname R4

!

Virtual Link

Page 50: Area Esp Osf Egt

49

boot-start-marker

boot-end-marker

!

no aaa new-model

memory-size iomem 5

ip cef

!

ip auth-proxy max-nodata-conns 3

ip admission max-nodata-conns 3

!

interface FastEthernet0/0

ip address 10.100.1.4 255.255.255.0

ip ospf authentication message-digest

ip ospf message-digest-key 1 md5 cisco

duplex auto

speed auto

!

interface Serial0/0

bandwidth 500

ip address 10.45.1.4 255.255.255.0

clock rate 500000

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/1

no ip address

shutdown

clock rate 2000000

!

router ospf 1

router-id 4.4.4.4

log-adjacency-changes

area 45 nssa

network 10.45.1.0 0.0.0.255 area 45

network 10.100.1.0 0.0.0.255 area 0

!

ip forward-protocol nd

!

!

Autenticación MD5

Área NSSA

Page 51: Area Esp Osf Egt

50

ip http server

no ip http secure-server

!

control-plane

!

line con 0

line aux 0

line vty 0 4

login

!

end

R3#show running-config

Building configuration...

Current configuration : 1598 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname R3

!

boot-start-marker

boot-end-marker

!

no aaa new-model

memory-size iomem 5

ip cef

!

ip auth-proxy max-nodata-conns 3

ip admission max-nodata-conns 3

!

interface Loopback1

ip address 172.30.0.1 255.255.255.0

ip ospf network point-to-point

!

interface Loopback2

ip address 172.30.1.1 255.255.255.0

ip ospf network point-to-point

!

Page 52: Area Esp Osf Egt

51

interface Loopback3

ip address 172.30.2.1 255.255.255.0

ip ospf network point-to-point

!

interface Loopback4

ip address 172.30.3.1 255.255.255.0

ip ospf network point-to-point

!

interface FastEthernet0/0

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/0

bandwidth 500

ip address 10.23.1.3 255.255.255.0

ip ospf authentication

ip ospf authentication-key cisco

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/1

no ip address

shutdown

clock rate 2000000

!

router ospf 1

router-id 3.3.3.3

log-adjacency-changes

area 23 stub no-summary

area 23 default-cost 100

passive-interface default

no passive-interface Serial0/0

network 10.23.1.0 0.0.0.255 area 23

network 172.30.0.0 0.0.0.255 area 23

network 172.30.1.0 0.0.0.255 area 23

network 172.30.2.0 0.0.0.255 area 23

network 172.30.3.0 0.0.0.255 area 23

Autenticación Texto Plano

Área Totally Stub

Costo por defecto 100

Conocimiento de las

LOOPBACK en OSPF

Page 53: Area Esp Osf Egt

52

!

ip forward-protocol nd

!

ip http server

no ip http secure-server

!

control-plane

!

line con 0

line aux 0

line vty 0 4

login

!

End

R7#show running-config

Building configuration...

Current configuration : 1005 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname R7

!

boot-start-marker

boot-end-marker

!

!

no aaa new-model

memory-size iomem 5

ip cef

!

ip auth-proxy max-nodata-conns 3

ip admission max-nodata-conns 3

!

interface FastEthernet0/0

no ip address

shutdown

duplex auto

speed auto

!

Page 54: Area Esp Osf Egt

53

interface Serial0/0

bandwidth 500

ip address 10.78.1.7 255.255.255.0

clock rate 500000

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/1

bandwidth 500

ip address 10.67.1.7 255.255.255.0

clock rate 2000000

!

router ospf 1

router-id 7.7.7.7

log-adjacency-changes

area 67 virtual-link 6.6.6.6

network 10.67.1.0 0.0.0.255 area 67

network 10.78.1.0 0.0.0.255 area 78

!

ip forward-protocol nd

!

ip http server

no ip http secure-server

!

control-plane

!

line con 0

line aux 0

line vty 0 4

login

!

!

End

Virtual Link

Page 55: Area Esp Osf Egt

54

R8#show running-config

Building configuration...

Current configuration : 913 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname R8

!

boot-start-marker

boot-end-marker

!

no aaa new-model

memory-size iomem 5

ip cef

!

ip auth-proxy max-nodata-conns 3

ip admission max-nodata-conns 3

!

interface FastEthernet0/0

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/0

bandwidth 500

ip address 10.78.1.8 255.255.255.0

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/1

no ip address

shutdown

clock rate 2000000

!

router ospf 1

Page 56: Area Esp Osf Egt

55

router-id 8.8.8.8

log-adjacency-changes

network 10.78.1.0 0.0.0.255 area 78

!

ip forward-protocol nd

!

ip http server

no ip http secure-server

!

control-plane

!

line con 0

line aux 0

line vty 0 4

login

!

End

R5#show running-config

Building configuration...

Current configuration : 1102 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname R5

!

boot-start-marker

boot-end-marker

!

no aaa new-model

memory-size iomem 5

ip cef

!

ip auth-proxy max-nodata-conns 3

ip admission max-nodata-conns 3

!

interface FastEthernet0/0

Page 57: Area Esp Osf Egt

56

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/0

bandwidth 500

ip address 10.45.1.5 255.255.255.0

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/1

bandwidth 500

ip address 192.168.1.5 255.255.255.0

clock rate 500000

!

router eigrp 100

redistribute ospf 1 metric 100 100 100 100 100

network 192.168.1.0

auto-summary

!

router ospf 1

router-id 5.5.5.5

log-adjacency-changes

area 45 nssa

redistribute eigrp 100 metric-type 1 subnets

network 10.45.1.0 0.0.0.255 area 45

!

ip forward-protocol nd

!

ip http server

no ip http secure-server

!

control-plane

!

line con 0

line aux 0

line vty 0 4

login

Enrutamiento EIGRP

Inyección EIGRP en OSPF

Enrutamiento OSPF

Inyección OSPF en EIGRP

Area OSPF NSSA

Page 58: Area Esp Osf Egt

57

!

End

R9#show running-config

Building configuration...

Current configuration : 1292 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname R9

!

boot-start-marker

boot-end-marker

!

no aaa new-model

memory-size iomem 5

ip cef

!

no ip domain lookup

ip auth-proxy max-nodata-conns 3

ip admission max-nodata-conns 3

!

interface Loopback1

ip address 172.16.0.1 255.255.255.0

!

interface Loopback2

ip address 172.16.1.1 255.255.255.0

!

interface Loopback3

ip address 172.16.2.1 255.255.255.0

!

interface Loopback4

ip address 172.16.3.1 255.255.255.0

!

interface FastEthernet0/0

no ip address

shutdown

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58

duplex auto

speed auto

!

interface Serial0/0

bandwidth 500

ip address 192.168.1.9 255.255.255.0

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/1

no ip address

shutdown

clock rate 2000000

!

router eigrp 100

network 172.16.0.0 0.0.0.255

network 172.16.1.0 0.0.0.255

network 172.16.2.0 0.0.0.255

network 172.16.3.0 0.0.0.255

network 192.168.1.0

auto-summary

!

ip forward-protocol nd

!

no ip http server

no ip http secure-server

!

control-plane

!

line con 0

exec-timeout 0 0

logging synchronous

line aux 0

line vty 0 4

login

!

End

Enrutamiento EIGRP

Conocimiento de

LOOPBACKs en EIGPR

Page 60: Area Esp Osf Egt

59

R1#show ip protocols

Routing Protocol is "ospf 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Router ID 1.1.1.1

It is an autonomous system boundary router

Redistributing External Routes from,

static with metric mapped to 50, includes subnets in redistribution

Number of areas in this router is 1. 1 normal 0 stub 0 nssa

Maximum path: 4

Routing for Networks:

10.100.1.0 0.0.0.255 area 0

Reference bandwidth unit is 100 mbps

Routing Information Sources:

Gateway Distance Last Update

7.7.7.7 110 00:01:03

6.6.6.6 110 00:01:03

4.4.4.4 110 00:01:03

2.2.2.2 110 00:01:03

Distance: (default is 110)

R2#show ip protocols

Routing Protocol is "ospf 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Router ID 2.2.2.2

It is an area border router

Number of areas in this router is 2. 1 normal 1 stub 0 nssa

Maximum path: 4

Routing for Networks:

10.23.1.0 0.0.0.255 area 23

10.100.1.0 0.0.0.255 area 0

Reference bandwidth unit is 100 mbps

Routing Information Sources:

Gateway Distance Last Update

1.1.1.1 110 00:01:32

7.7.7.7 110 00:01:32

6.6.6.6 110 00:01:32

4.4.4.4 110 00:01:32

3.3.3.3 110 00:02:18

Distance: (default is 110)

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60

R3#show ip protocols

Routing Protocol is "ospf 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Router ID 3.3.3.3

Number of areas in this router is 1. 0 normal 1 stub 0 nssa

Maximum path: 4

Routing for Networks:

10.23.1.0 0.0.0.255 area 23

172.30.0.0 0.0.0.255 area 23

172.30.1.0 0.0.0.255 area 23

172.30.2.0 0.0.0.255 area 23

172.30.3.0 0.0.0.255 area 23

Reference bandwidth unit is 100 mbps

Passive Interface(s):

FastEthernet0/0

FastEthernet0/1

Serial0/1

Loopback1

Loopback2

Loopback3

Loopback4

VoIP-Null0

Routing Information Sources:

Gateway Distance Last Update

2.2.2.2 110 00:07:20

Distance: (default is 110)

R6#show ip protocols

Routing Protocol is "ospf 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Router ID 6.6.6.6

It is an area border router

Number of areas in this router is 2. 2 normal 0 stub 0 nssa

Maximum path: 4

Routing for Networks:

10.67.1.0 0.0.0.255 area 67

10.100.1.0 0.0.0.255 area 0

Reference bandwidth unit is 100 mbps

Routing Information Sources:

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61

Gateway Distance Last Update

1.1.1.1 110 00:09:00

4.4.4.4 110 00:09:00

2.2.2.2 110 00:09:10

7.7.7.7 110 00:09:10

Distance: (default is 110)

R7#show ip protocols

Routing Protocol is "ospf 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Router ID 7.7.7.7

It is an area border router

Number of areas in this router is 3. 3 normal 0 stub 0 nssa

Maximum path: 4

Routing for Networks:

10.67.1.0 0.0.0.255 area 67

10.78.1.0 0.0.0.255 area 78

Reference bandwidth unit is 100 mbps

Routing Information Sources:

Gateway Distance Last Update

1.1.1.1 110 00:13:10

4.4.4.4 110 00:13:10

2.2.2.2 110 00:13:10

6.6.6.6 110 00:13:10

Distance: (default is 110)

R8#show ip protocols

Routing Protocol is "ospf 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Router ID 8.8.8.8

Number of areas in this router is 1. 1 normal 0 stub 0 nssa

Maximum path: 4

Routing for Networks:

10.78.1.0 0.0.0.255 area 78

Reference bandwidth unit is 100 mbps

Routing Information Sources:

Gateway Distance Last Update

1.1.1.1 110 00:13:40

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62

4.4.4.4 110 00:13:40

7.7.7.7 110 00:13:45

Distance: (default is 110)

R4#show ip protocols

Routing Protocol is "ospf 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Router ID 4.4.4.4

It is an area border and autonomous system boundary router

Redistributing External Routes from,

Number of areas in this router is 2. 1 normal 0 stub 1 nssa

Maximum path: 4

Routing for Networks:

10.45.1.0 0.0.0.255 area 45

10.100.1.0 0.0.0.255 area 0

Reference bandwidth unit is 100 mbps

Routing Information Sources:

Gateway Distance Last Update

1.1.1.1 110 00:14:35

7.7.7.7 110 00:14:35

6.6.6.6 110 00:14:35

2.2.2.2 110 00:14:35

5.5.5.5 110 00:14:35

Distance: (default is 110)

R5#show ip protocols

Routing Protocol is "eigrp 100"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Default networks flagged in outgoing updates

Default networks accepted from incoming updates

EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0

EIGRP maximum hopcount 100

EIGRP maximum metric variance 1

Redistributing: eigrp 100, ospf 1

EIGRP NSF-aware route hold timer is 240s

Automatic network summarization is in effect

Maximum path: 4

Routing for Networks:

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63

192.168.1.0

Routing Information Sources:

Gateway Distance Last Update

192.168.1.9 90 00:16:12

Distance: internal 90 external 170

Routing Protocol is "ospf 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Router ID 5.5.5.5

It is an autonomous system boundary router

Redistributing External Routes from,

eigrp 100, includes subnets in redistribution

Number of areas in this router is 1. 0 normal 0 stub 1 nssa

Maximum path: 4

Routing for Networks:

10.45.1.0 0.0.0.255 area 45

Reference bandwidth unit is 100 mbps

Routing Information Sources:

Gateway Distance Last Update

4.4.4.4 110 00:15:26

Distance: (default is 110)

R9#show ip protocols

Routing Protocol is "eigrp 100"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Default networks flagged in outgoing updates

Default networks accepted from incoming updates

EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0

EIGRP maximum hopcount 100

EIGRP maximum metric variance 1

Redistributing: eigrp 100

EIGRP NSF-aware route hold timer is 240s

Automatic network summarization is in effect

Automatic address summarization:

192.168.1.0/24 for Loopback1, Loopback2, Loopback3

Loopback4

172.16.0.0/16 for Serial0/0

Summarizing with metric 128256

Maximum path: 4

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64

Routing for Networks:

172.16.0.0/24

172.16.1.0/24

172.16.2.0/24

172.16.3.0/24

192.168.1.0

Routing Information Sources:

Gateway Distance Last Update

(this router) 90 00:17:12

192.168.1.5 90 00:16:12

Distance: internal 90 external 170