Laboratorio de VRF

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Laboratorio de VRF

En este debate hablamos sobre la lección «Laboratorio de VRF». Puedes realizar tus consultas sobre cualquier tema relacionado al examen de certificación y sobre el banco de preguntas.

[Andrea López Mendoza]

Hola. Cuando descargo el link VRF – 754 y 1177 aparece solo el laboratorio BGP 754, no el de VRF.

Quedo atenta a su respuesta

[AlvaroM]

Hola Andrea!

Gracias por la observación, ya hemos corregido el archivo, podrías validar por favor?

Saludos!

[José Alberto Briceño Almazán]

Buen día Alvaro. Este laboratorio en especial, me da un problema, cuando ya configuro todo, para realizar el ping vrf Finance 10.10..111.1 source vlan 222
Me aparece esto:
Invalid source interface – IP not enabled or interface is down

Y también me manda un Mismatch, refente al full duplex entre la interfaz f1/0 del R22 y el G0 del Sw22.
Revise que están en negociación auto, las quise modificar para ver si era eso, pero no, e incluso las interfaces estan Up.
Que podría ser.?

[AlvaroM]

Hola José!

El tema de dúplex es tema de GNS3, pero no tiene afectación en la emulación real.

Respecto a tu problema, me pasas tu configuración para validar?… puedes pegarla acá si gustas.

Quedo atento.

Saludos.

[José Alberto Briceño Almazán]

Que tal Álvaro. Muchas gracias por la ayuda!
Agrego la configuración.
R22
R22#
R22#show run
Building configuration…

Current configuration : 1823 bytes
!
! Last configuration change at 19:08:10 UTC Sat Jun 27 2026
upgrade fpd auto
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R22
!
boot-start-marker
boot-end-marker
!
!
vrf definition Finance
!
address-family ipv4
exit-address-family
!
!
no aaa new-model
no ip icmp rate-limit unreachable
!
!
!
!
!
!
no ip domain lookup
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
redundancy
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
interface Tunnel10
vrf forwarding Finance
ip address 10.10.10.2 255.255.255.252
tunnel source FastEthernet0/0
tunnel destination 209.165.200.230
!
interface FastEthernet0/0
ip address 209.165.201.2 255.255.255.252
ip ospf 1 area 0
duplex half
!
interface FastEthernet1/0
vrf forwarding Finance
ip address 10.22.22.1 255.255.255.252
duplex auto
speed auto
!
interface FastEthernet1/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet2/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet2/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet3/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet3/1
no ip address
shutdown
duplex auto
speed auto
!
router ospf 1
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip route vrf Finance 10.10.111.0 255.255.255.0 Tunnel10
ip route vrf Finance 10.10.222.0 255.255.255.0 10.22.22.2
!
no cdp log mismatch duplex
!
!
!
control-plane
!
!
!
mgcp profile default
!
!
!
gatekeeper
shutdown
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login
transport input all
!
!
end

R22#
———————————-
sw11

Sw11#
Sw11#
Sw11#show run
Building configuration…

Current configuration : 3138 bytes
!
! Last configuration change at 17:18:17 UTC Sat Jun 27 2026
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service compress-config
!
hostname Sw11
!
boot-start-marker
boot-end-marker
!
!
vrf definition Finance
!
address-family ipv4
exit-address-family
!
!
no aaa new-model
!
!
!
!
!
!
!
!
ip cef
no ipv6 cef
!
!
!
spanning-tree mode rapid-pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface GigabitEthernet0/1
switchport mode access
media-type rj45
negotiation auto
!
interface GigabitEthernet0/2
media-type rj45
negotiation auto
!
interface GigabitEthernet0/3
media-type rj45
negotiation auto
!
interface GigabitEthernet0/0
no switchport
vrf forwarding Finance
ip address 10.11.11.2 255.255.255.252
negotiation auto
!
interface GigabitEthernet1/0
media-type rj45
negotiation auto
!
interface GigabitEthernet1/1
media-type rj45
negotiation auto
!
interface Vlan111
vrf forwarding Finance
ip address 10.10.111.1 255.255.255.0
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
ip route vrf Finance 0.0.0.0 0.0.0.0 10.11.11.1
!
!
!
!
!
control-plane
!
banner exec ^C
———————————————

R11
R11#
R11#show run
Building configuration…

Current configuration : 1823 bytes
!
! Last configuration change at 19:04:05 UTC Sat Jun 27 2026
upgrade fpd auto
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R11
!
boot-start-marker
boot-end-marker
!
!
vrf definition Finance
!
address-family ipv4
exit-address-family
!
!
no aaa new-model
no ip icmp rate-limit unreachable
!
!
!
!
!
!
no ip domain lookup
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
redundancy
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
interface Tunnel10
vrf forwarding Finance
ip address 10.10.10.1 255.255.255.252
tunnel source FastEthernet0/0
tunnel destination 209.165.201.2
!
interface FastEthernet0/0
ip address 209.165.200.230 255.255.255.252
ip ospf 1 area 0
duplex half
!
interface FastEthernet1/0
vrf forwarding Finance
ip address 10.11.11.1 255.255.255.252
duplex auto
speed auto
!
interface FastEthernet1/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet2/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet2/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet3/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet3/1
no ip address
shutdown
duplex auto
speed auto
!
router ospf 1
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip route vrf Finance 10.10.111.0 255.255.255.0 10.11.11.2
ip route vrf Finance 10.10.222.0 255.255.255.0 Tunnel10
!
no cdp log mismatch duplex
!
!
!
control-plane
!
!
!
mgcp profile default
!
!
!
gatekeeper
shutdown
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
stopbits 1
line vty 0 4
login
transport input all
!
!
end

R11#
R11#
—————————————–

SW22

Sw22#
Sw22#show run
Building configuration…

Current configuration : 3138 bytes
!
! Last configuration change at 19:17:29 UTC Sat Jun 27 2026
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service compress-config
!
hostname Sw22
!
boot-start-marker
boot-end-marker
!
!
vrf definition Finance
!
address-family ipv4
exit-address-family
!
!
no aaa new-model
!
!
!
!
!
!
!
!
ip cef
no ipv6 cef
!
!
!
spanning-tree mode rapid-pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface GigabitEthernet0/1
switchport mode access
media-type rj45
negotiation auto
!
interface GigabitEthernet0/2
media-type rj45
negotiation auto
!
interface GigabitEthernet0/3
media-type rj45
negotiation auto
!
interface GigabitEthernet0/0
no switchport
vrf forwarding Finance
ip address 10.22.22.2 255.255.255.252
negotiation auto
!
interface GigabitEthernet1/0
media-type rj45
negotiation auto
!
interface GigabitEthernet1/1
media-type rj45
negotiation auto
!
interface Vlan222
vrf forwarding Finance
ip address 10.10.222.1 255.255.255.0
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
ip route vrf Finance 0.0.0.0 0.0.0.0 10.22.22.1
!
!
!
!
!
control-plane
!
banner exec ^C

Sw22#
Sw22#ping vrf Finance 10.10.111.1 source vlan 222
% Invalid source interface – IP not enabled or interface is down
Sw22#

[AlvaroM]

Como estás José, te comento que he copiado tu configuración tal cual (copy paste), y el ping funciona sin problemas. Se me hace que estas experimentando un tema de GNS3 respecto a las interfaces físicas que se deshabilitan. Intenta apagando/encendiendo la interface física y lógica del switch… si no funciona intenta apagando encendiendo el dispositivo, y finalmente reemplázalo por otro switch.

Quedo atento.

Saludos! =)

[Autor]

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