Laboratorios de networking

Laboratorio de IPv6 ( IPng –next generation- )

Fecha: 23 de Noviembre del 2010 Instructor: Ernesto Vilarrasa

Escenario: utilizamos un escenario simple, para poder facilitar la asimilación de las

diferentes numeraciones entre IPv4 e IPv6:

Router Aca:

hostname Aca

ipv6 unicast-routing (habilita Ipv6)

interface FastEthernet0/0

no ip address (no utilizaremos IPv4)

ipv6 address 2340:1111:AAAA:1::/64 eui-64

ipv6 rip Aca enable ( “Aca” es el nombre del proceso global RIP y

! se habilita en esta interface en particular)

interface Serial0/0/0

no ip address

ipv6 address 2340:1111:AAAA:2::1/64 (la dirección de la interfaz se

ipv6 rip Aca enable configura manualmente, donde

clock rate 64000 2340:1111:AAAA:2 es la dirección de red)

interface Serial0/0/1

no ip address

ipv6 address 2340:1111:AAA:4::/64 eui-64 (la dirección de la interfaz se

ipv6 rip Aca enable asocia a la MAC de la interfaz)

ipv6 router rip Aca (habilitación del proceso global de RIP en particular)

Router Alla:

hostname Alla

ipv6 unicast-routing

interface FastEthernet0/0

no ip address

duplex auto

speed auto

ipv6 address 2340:1111:AAAA:3::/64 eui-64

ipv6 rip Alla enable

interface Serial0/0/0

no ip address

ipv6 address 2340:1111:AAAA:2::2/64

ipv6 rip Alla enable

ipv6 router rip Alla

Verificación:

Aca#sh ip int

FastEthernet0/0 is up, line protocol is up (connected)

Internet protocol processing disabled

FastEthernet0/1 is administratively down, line protocol is down (disabled)

Internet protocol processing disabled

Serial0/0/0 is up, line protocol is up (connected)

Internet protocol processing disabled

Serial0/0/1 is down, line protocol is down (disabled)

Internet protocol processing disabled

Aca#sh ipv6 int

FastEthernet0/0 is up, line protocol is up

IPv6 is enabled, link-local address is FE80::2D0:97FF:FE91:6E01

No Virtual link-local address(es):

Global unicast address(es):

2340:1111:AAAA:1:2D0:97FF:FE91:6E01, subnet is 2340:1111:AAAA:1::/64 [EUI]

......

Hosts use stateless autoconfig for addresses.

Serial0/0/0 is up, line protocol is up

IPv6 is enabled, link-local address is FE80::2D0:FFFF:FE6C:C001

No Virtual link-local address(es):

Global unicast address(es):

2340:1111:AAAA:2::1, subnet is 2340:1111:AAAA:2::/64

....

Hosts use stateless autoconfig for addresses.

Aca#

Aca#sh ipv6 route

IPv6 Routing Table - 6 entries

Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP

U - Per-user Static route, M - MIPv6

I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary

O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2

ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2

D - EIGRP, EX - EIGRP external

C 2340:1111:AAAA:1::/64 [0/0]

via ::, FastEthernet0/0

L 2340:1111:AAAA:1:2D0:97FF:FE91:6E01/128 [0/0]

via ::, FastEthernet0/0

C 2340:1111:AAAA:2::/64 [0/0]

via ::, Serial0/0/0

L 2340:1111:AAAA:2::1/128 [0/0]

via ::, Serial0/0/0

R 2340:1111:AAAA:3::/64 [120/1]

via FE80::20A:41FF:FEDC:C6E9, Serial0/0/0

L FF00::/8 [0/0]

via ::, Null0

Aca#

Si capturamos un paquete RIP veremos:

1) El destino es FF02::9 o lo que es igual a FF02:0000:0000:0000:0000:0000:0000:0002,

esta es una dirección multicast reservada para RIP ( en versión 4 sería 224.0.0.9 )

2) El origen es FE80::260:70FF:FE15:507B que es la dirección local (site-local-address),

sólo de significado local.

Alla#sh ipv6 int bri

FastEthernet0/0 [up/up]

FE80::260:70FF:FE15:507B

2340:1111:AAAA:3:260:70FF:FE15:507B

FastEthernet0/1 [administratively down/down]

Serial0/0/0 [up/up]

FE80::20A:41FF:FEDC:C6E9

2340:1111:AAAA:2::2

Serial0/0/1 [administratively down/down]

Vlan1 [administratively down/down]

Alla#

Esta es una verificación de esta dirección ( Fa0/0 del router Alla )

Desde la PC de Alla:

PC>ping FE80::260:70FF:FE15:507B

Pinging FE80::260:70FF:FE15:507B with 32 bytes of data:

Reply from FE80::260:70FF:FE15:507B: bytes=32 time=31ms TTL=255

PC>ping 2340:1111:AAAA:3::2

Pinging 2340:1111:AAAA:3::2 with 32 bytes of data:

Reply from 2340:1111:AAAA:3::2: bytes=32 time=15ms TTL=128

Reply from 2340:1111:AAAA:3::2: bytes=32 time=16ms TTL=128

Reply from 2340:1111:AAAA:3::2: bytes=32 time=15ms TTL=128

Reply from 2340:1111:AAAA:3::2: bytes=32 time=16ms TTL=128

Configuración de los hosts:

En PC en la red Aca:

Solapa Config: Se configura solamente el gateway, para saberlo deberemos ejecutar:

Aca#sh ipv6 int bri

FastEthernet0/0 [up/up]

FE80::2D0:97FF:FE91:6E01

2340:1111:AAAA:1:2D0:97FF:FE91:6E01 (seleccionamos y pegamos en Ipv6 Gateway)

FastEthernet0/1 [administratively down/down]

Serial0/0/0 [up/up]

FE80::2D0:FFFF:FE6C:C001

2340:1111:AAAA:2::1

Serial0/0/1 [down/down]

FE80::2D0:FFFF:FE6C:C002

2340:1111:AAA:4:2D0:FFFF:FE6C:C002

Vlan1 [administratively down/down]

Aca#

En la solapa INTERFACE:

PC>ipv6config

IPv6 Address....................: 2340:1111:AAAA:1::2/64

Default Gateway.................: 2340:1111:AAAA:1:2D0:97FF:FE91:6E01

PC>ping 2340:1111:AAAA:3::2

Pinging 2340:1111:AAAA:3::2 with 32 bytes of data:

Reply from 2340:1111:AAAA:3::2: bytes=32 time=93ms TTL=126

Reply from 2340:1111:AAAA:3::2: bytes=32 time=94ms TTL=126

PC>tracert 2340:1111:AAAA:3::2

Tracing route to 2340:1111:AAAA:3::2 over a maximum of 30 hops:

1 * * * Request timed out. desconozco porqué no se

2 * * * Request timed out. responden los ICMP

3 94 ms 93 ms 93 ms 2340:1111:AAAA:3::2

Trace complete.

Alla#sh ipv6 route

IPv6 Routing Table - 6 entries

Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP

U - Per-user Static route, M - MIPv6

I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary

O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2

ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2

D - EIGRP, EX - EIGRP external

R 2340:1111:AAAA:1::/64 [120/1]

via FE80::2D0:FFFF:FE6C:C001, Serial0/0/0

C 2340:1111:AAAA:2::/64 [0/0]

via ::, Serial0/0/0

L 2340:1111:AAAA:2::2/128 [0/0]

via ::, Serial0/0/0

C 2340:1111:AAAA:3::/64 [0/0]

via ::, FastEthernet0/0

L 2340:1111:AAAA:3:260:70FF:FE15:507B/128 [0/0]

via ::, FastEthernet0/0

L FF00::/8 [0/0]

via ::, Null0

Alla#

Desde PC en red Alla:

En la solapa INTERFACE:

PC>ipv6config

IPv6 Address....................: 2340:1111:AAAA:3::2/64

Default Gateway.................: 2340:1111:AAAA:3:260:70FF:FE15:507B

PC>

(2010) Crazy tales for the boring summer (without funny girls), from Uncle Ernes’t

Rosario, Argentina