En nuestro primer dia como empleado en el area IT de ACME 
Inc. debemos solucionar los problemas de networking que el 
administrador anterior dejó al irse.
 
A trabajar que llega el jefe !
 
 
On our first day as an employee in the IT area of ACME
Inc. we must solve the problems of networking that the
previous manager left before going.
 
Let's work the boss is coming !

 

Exploration 4: PPP Chalenge

Fecha: 7 de Mayo del 2011

Ganador: Patricio Maraviglia es el único que me entregó el escenario terminado a la semana.

 

 

Los routers están mal configurados (o sin configurar), tenemos el tiempo contado para solucionarlo,

como es normal en nuestra profesión ! de cuanto será el downtime de la red, si llegamos a las 8.00 am

y nos encontramos con esto ??? a trabajar, que a las 9.00 llega el jefe !!! (de mal humor como siempre)

 

Solución / Troubleshooting: por Patricio Maraviglia

 

Para solucionar este escenario, el network admin deberá ver todas las configuraciones, realizar un mapa de la

red y aplicar la lógica para levantar el muerto.

Deberán aplicarse destrezas básicas, de PPP autenticado y de EIGRP.

Las luces de link, la solapa Config, los carteles indicadores de IP y estados de interfaces fueron deshabilitados,

se necesita sólo la CLI, papel, lápiz y paciencia ....

 

 

Telecom#sh runn

!

hostname Telecom

!

username Cordoba password 0 cisco (como es el centro de la estrella, deberá

username Formosa password 0 cisco  tener todos los routers conectados a el)

username Mendoza password 0 cisco

username Neuquen password 0 cisco

username Rosario password 0 cisco

username Salta password 0 cisco

username San_Juan password 0 cisco

username Tucuman password 0 cisco

!

interface Serial0/0

 description link a mendoza

 ip address 172.16.0.14 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

interface Serial1/0

 description link a Cordoba

 ip address 172.16.0.18 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

interface Serial2/0

 description link a Neuquen

 ip address 172.16.0.21 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

interface Serial3/0

 description link a Rosario

 ip address 172.16.0.26 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

interface Serial4/0

 description link a Tucuman

 ip address 172.16.0.10 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

interface Serial5/0

 description link a Salta

 ip address 172.16.0.1 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

interface Serial6/0

 description link a San_Juan

 ip address 172.16.0.6 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

interface Serial7/0

 description link a Formosa

 ip address 172.16.0.30 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

router eigrp 100

 network 172.16.0.0 0.0.0.3

 network 172.16.0.28 0.0.0.3

 network 172.16.0.24 0.0.0.3

 network 172.16.0.20 0.0.0.3

 network 172.16.0.16 0.0.0.3

 network 172.16.0.12 0.0.0.3

 network 172.16.0.8 0.0.0.3

 network 172.16.0.4 0.0.0.3

 auto-summary (puede llegar a fallar debido a que existen redes

!              discontiguas entre Neuquén - Rio Negro - Chubut)

!

end

 

Telecom# ip ro

---resumido---

     172.16.0.0/16 is variably subnetted, 11 subnets, 2 masks

C       172.16.0.0/30 is directly connected, Serial5/0

C       172.16.0.4/30 is directly connected, Serial6/0

C       172.16.0.8/30 is directly connected, Serial4/0

C       172.16.0.12/30 is directly connected, Serial0/0

C       172.16.0.16/30 is directly connected, Serial1/0

C       172.16.0.17/32 is directly connected, Serial1/0

C       172.16.0.20/30 is directly connected, Serial2/0

C       172.16.0.24/30 is directly connected, Serial3/0

C       172.16.0.28/30 is directly connected, Serial7/0

D       172.16.0.32/30 [90/2681856] via 172.16.0.22, 00:01:11, Serial2/0

D       172.16.0.36/30 [90/2681856] via 172.16.0.22, 00:01:11, Serial2/0

     192.168.0.0/25 is subnetted, 1 subnets

D       192.168.0.0 [90/2172416] via 172.16.0.25, 00:01:11, Serial3/0

D    192.168.1.0/24 [90/2172416] via 172.16.0.2, 00:01:11, Serial5/0

D    192.168.2.0/24 [90/2172416] via 172.16.0.5, 00:01:11, Serial6/0

D    192.168.3.0/24 [90/2172416] via 172.16.0.9, 00:01:11, Serial4/0

D    192.168.4.0/24 [90/2172416] via 172.16.0.13, 00:01:11, Serial0/0

D    192.168.5.0/24 [90/2172416] via 172.16.0.17, 00:01:11, Serial1/0

     192.168.6.0/25 is subnetted, 2 subnets

D       192.168.6.0 [90/2684416] via 172.16.0.22, 00:01:10, Serial2/0

D       192.168.6.128 [90/2684416] via 172.16.0.22, 00:01:10, Serial2/0

D    192.168.7.0/24 [90/2172416] via 172.16.0.29, 00:01:12, Serial7/0

 

Telecom#

 

!

hostname Formosa

!

username Telecom password 0 cisco

!

interface FastEthernet0/0

 ip address 192.168.7.1 255.255.255.0

!

interface Serial0/0/1

 ip address 172.16.0.29 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

router eigrp 100

 network 192.168.7.0

 network 172.16.0.28 0.0.0.3

 no auto-summary

!

end

 

!

hostname Rosario

!

username Telecom password 0 cisco

!

interface FastEthernet0/0

 ip address 192.168.0.1 255.255.255.128

!

interface Serial0/0/1

 ip address 172.16.0.25 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

router eigrp 100

 network 192.168.0.0 0.0.0.127

 network 172.16.0.24 0.0.0.3

 no auto-summary

!

end

 

!

hostname Neuquen

!

username Chubut password 0 cisco

username Rio_Negro password 0 cisco

username Telecom password 0 cisco

!

interface Serial0/0/0

 ip address 172.16.0.37 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

interface Serial0/0/1

 ip address 172.16.0.22 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

interface Serial0/1/0

 ip address 172.16.0.34 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

router eigrp 100

 network 172.16.0.20 0.0.0.3

 network 172.16.0.32 0.0.0.3

 network 172.16.0.36 0.0.0.3

 no auto-summary

!

end

 

!

hostname Chubut

!

username Neuquen password 0 cisco

!

interface FastEthernet0/0

 ip address 192.168.6.129 255.255.255.128

!

interface Serial0/0/0

 ip address 172.16.0.33 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

router eigrp 100

 network 172.16.0.32 0.0.0.3

 network 192.168.6.128 0.0.0.127

 no auto-summary

!

end

 

!

hostname Rio_Negro

!

username Neuquen password 0 cisco

!

interface FastEthernet0/0

 ip address 192.168.6.1 255.255.255.128

!

interface Serial0/0/0

 ip address 172.16.0.38 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

router eigrp 100

 network 172.16.0.36 0.0.0.3

 network 192.168.6.0 0.0.0.127

 no auto-summary

!

end

 

!

hostname Cordoba

!

username Telecom password 0 cisco

!

interface FastEthernet0/0

 ip address 192.168.5.1 255.255.255.0

!

interface Serial0/0/0

 ip address 172.16.0.17 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

router eigrp 100

 network 172.16.0.16 0.0.0.3

 network 192.168.5.0

 no auto-summary

!

end

 

!

hostname Mendoza

!

username Telecom password 0 cisco

!

interface FastEthernet0/0

 ip address 192.168.4.1 255.255.255.0

!

interface Serial0/0/0

 ip address 172.16.0.13 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

router eigrp 100

 network 172.16.0.12 0.0.0.3

 network 192.168.4.0

 no auto-summary

!

end

 

!

hostname Tucuman

!

username Telecom password 0 cisco

!

interface FastEthernet0/0

 ip address 192.168.3.1 255.255.255.0

!

interface Serial0/0/0

 ip address 172.16.0.9 255.255.255.252

 encapsulation ppp

 ppp authentication chap

 clock rate 64000

!

router eigrp 100

 network 192.168.3.0

 network 172.16.0.8 0.0.0.3

 no auto-summary

!

end

 

!

hostname San_Juan

!

username Telecom password 0 cisco

!

interface FastEthernet0/0

 ip address 192.168.2.1 255.255.255.0

!

interface Serial0/0/0

 ip address 172.16.0.5 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

router eigrp 100

 passive-interface FastEthernet0/0

 network 192.168.2.0

 network 172.16.0.4 0.0.0.3

 no auto-summary

!

end

 

 

!

hostname Salta

!

username Telecom password 0 cisco

!

interface FastEthernet0/0

 ip address 192.168.1.1 255.255.255.0

!

interface Serial0/0/0

 ip address 172.16.0.2 255.255.255.252

 encapsulation ppp

 ppp authentication chap

!

router eigrp 100

 network 192.168.1.0

 network 172.16.0.0 0.0.0.3

 no auto-summary

!

end

 

 

                        (2011) Tales for lazy afternoons with funny girls

                       Rosario, Argentina