Escenario de
HSRP (Hot Satndby Router Protocol)
Clase: Exploration 3 (v4.0) Fecha:
27/6/2013
Escenario
Este escenario se desarrolló
con equipos reales, aquí se reproducen en Packet Tracer los resultados
del trabajo en clase
(pruebas básicas), como pruebas mas complejas, a las que se podrían haber
llegado
de haber existido mas
interés.
Este tema no pertenece a la
versión de currícula 4.0 pero se desarrolló igualmente en vistas al cambio
de versión inminente.
Actualmente este tema es de CCNP, aquí se desarrollan aspectos básicos.
El escenario consiste en dos
sectores físicos diferentes de una empresa, unidos mediante un router
para proporcionar tanto el
enrutamiento inter-vlan como la conectividad entre sectores. Se utilizan
diferentes números de VLAN
para evitar confusiones en el direccionamiento IP.
El escenario varía en cuanto
a los trunk al router y subinterfaces debido a limitaciones del Packet Tracer
tanto versiones 6 y 6.0.1,
la 5.3 no soporta HSRP. Hubo varios program crash durante las pruebas.
Verificación inicial de
conectividad
Router#sh ip route
---resumido---
C 192.168.10.0/24 is directly connected, FastEthernet0/0
C 192.168.20.0/24 is directly connected, FastEthernet1/0
C 192.168.30.0/24 is directly connected, FastEthernet2/0
C 192.168.40.0/24 is directly connected, FastEthernet3/0
Router#
PC>ipconfig
IP Address ......................: 192.168.20.10 (host en VLAN 20)
Subnet
Mask.....................: 255.255.255.0
Default
Gateway................: 192.168.20.1
PC>ping 192.168.20.1 (verificación de gateway)
Pinging 192.168.20.1 with 32
bytes of data:
Reply from 192.168.20.1:
bytes=32 time=172ms TTL=255
Reply from 192.168.20.1:
bytes=32 time=60ms TTL=255
Reply from 192.168.20.1:
bytes=32 time=78ms TTL=255
Reply from 192.168.20.1: bytes=32
time=51ms TTL=255
Ping statistics for
192.168.20.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times
in milli-seconds:
Minimum = 51ms, Maximum = 172ms, Average = 90ms
PC>ping 192.168.40.10 (verificación inter-valn)
Pinging 192.168.40.10 with
32 bytes of data:
Request timed out.
Reply from 192.168.40.10:
bytes=32 time=143ms TTL=127
Reply from 192.168.40.10:
bytes=32 time=187ms TTL=127
Reply from 192.168.40.10:
bytes=32 time=172ms TTL=127
Ping statistics for
192.168.40.10:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times
in milli-seconds:
Minimum = 143ms, Maximum = 187ms, Average = 167ms
PC>
Simulación del colapso del
router
Con esta situación no existe
ni enrutamiento entre edificios ni
inter-vlan.
Solución mediante
redundancia
Se puede conectar un router
sin configurar sin que afecte la topología actual, hay que planificar la
configuración del mismo para
tener el menor impacto posible en la implementación de HSRP.
Router#conf t
Enter configuration
commands, one per line. End with
CNTL/Z.
Router(config)#host
Backup
Backup(config)#int fa0/0
Backup(config-if)#no shut
Backup(config-if)#ip add
192.168.10.2 255.255.255.0
Backup(config-if)#exit
Backup(config)#int fa1/0
Backup(config-if)#ip add
192.168.20.2 255.255.255.0
Backup(config-if)#exit
Backup(config)#int fa2/0
Backup(config-if)#ip add
192.168.30.2 255.255.255.0
Backup(config-if)#exit
Backup(config)#int fa3/0
Backup(config-if)#ip add
192.168.40.2 255.255.255.0
Backup(config-if)#end
Backup#
Backup#sh ip route
---resumido---
C 192.168.10.0/24 is directly connected, FastEthernet0/0
C 192.168.20.0/24 is directly connected, FastEthernet1/0
C 192.168.30.0/24 is directly connected, FastEthernet2/0
C 192.168.40.0/24 is directly connected, FastEthernet3/0
Router#
Hasta aquí tenemos el router
operativo, en paralelo al router principal, pero en caso de caer este último,
se deberían cambiar los
default gateway de las PCs, por lo que no es funcional, entonces se planifica
la
implementación HSRP:
Script para router
principal:
conf t
int fa0/0
ip add 192.168.10.3
255.255.255.0
standby ip 192.168.10.1
standby preempt
exit
int fa1/0
ip add 192.168.20.3
255.255.255.0
standby ip 192.168.20.1
standby preempt
exit
int fa2/0
ip add 192.168.30.3
255.255.255.0
standby ip 192.168.30.1
standby preempt
exit
int fa3/0
ip add 192.168.40.3
255.255.255.0
standby ip 192.168.40.1
standby preempt
exit
Script para router de
backup:
conf t
int fa0/0
standby ip 192.168.10.1
exit
int fa1/0
standby ip 192.168.20.1
exit
int fa2/0
standby ip 192.168.30.1
exit
int fa3/0
standby ip 192.168.40.1
exit
Implementación
Luego de aplicar ambos
scripts vemos por consola:
En router principal:
%HSRP-6-STATECHANGE:
FastEthernet0/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet0/0 Grp 0 state Standby -> Active
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Standby -> Active
%HSRP-6-STATECHANGE:
FastEthernet2/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet2/0 Grp 0 state Standby -> Active
%HSRP-6-STATECHANGE:
FastEthernet3/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet3/0 Grp 0 state Standby -> Active
En router backup:
%HSRP-6-STATECHANGE:
FastEthernet0/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet2/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet3/0 Grp 0 state Speak -> Standby
Verificación en PC:
PC>ping 192.168.20.1 (verificamos gateway)
Pinging 192.168.20.1 with 32
bytes of data:
Reply from 192.168.20.1:
bytes=32 time=47ms TTL=255
Reply from 192.168.20.1: bytes=32
time=0ms TTL=255
Reply from 192.168.20.1:
bytes=32 time=12ms TTL=255
Reply from 192.168.20.1:
bytes=32 time=0ms TTL=255
Ping statistics for
192.168.20.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times
in milli-seconds:
Minimum = 0ms, Maximum = 47ms, Average = 14ms
PC>ping 192.168.20.3 (verificamos IP real)
Pinging 192.168.20.3 with 32
bytes of data:
Reply from 192.168.20.3:
bytes=32 time=16ms TTL=255
Reply from 192.168.20.3:
bytes=32 time=0ms TTL=255
Reply from 192.168.20.3:
bytes=32 time=0ms TTL=255
Reply from 192.168.20.3:
bytes=32 time=0ms TTL=255
Ping statistics for
192.168.20.3:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times
in milli-seconds:
Minimum = 0ms, Maximum = 16ms, Average = 4ms
PC>arp -a
Internet Address
Physical Address Type
192.168.20.1
0000.0c9f.f000 dynamic (IP y MAC virtuales)
192.168.20.3
0090.211a.5513 dynamic (IP y MAC reales)
PC>
Topología final
La dirección IP del gateway
para todas las redes es una IP virtual, con una dirección MAC
virtual, la cual escucharán
ambos routers.
Router#sh standby
FastEthernet0/0 - Group 0
(version 2)
State is Active
5 state changes, last state change 00:00:19
Virtual IP address is 192.168.10.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.943 secs
Preemption enabled (siempre tiene a ser
el active)
Active router is local (mismas priority,
gana IP mas alta, similar al OSPF)
Standby router is 192.168.10.2
Priority 100 (default 100)
Group name is hsrp-Fa0/0-0 (default)
FastEthernet1/0 - Group 0
(version 2)
State is Standby
6 state changes, last state change 00:00:35
Virtual IP address is 192.168.20.1
Active virtual MAC address is unknown
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.273 secs
Preemption enabled
Active router is local
Standby router is 192.168.20.2
Priority 100 (default 100)
Group name is hsrp-Fa1/0-0 (default)
FastEthernet2/0 - Group 0
(version 2)
State is Active
5 state changes, last state change 00:00:19
Virtual IP address is 192.168.30.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.507 secs
Preemption enabled
Active router is local
Standby router is 192.168.30.2
Priority 100 (default 100)
Group name is hsrp-Fa2/0-0 (default)
FastEthernet3/0 - Group 0
(version 2)
State is Active
5 state changes, last state change 00:00:19
Virtual IP address is 192.168.40.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.736 secs
Preemption enabled
Active router is local
Standby router is 192.168.40.2
Priority 100 (default 100)
Group name is hsrp-Fa3/0-0 (default)
Router#
Backup#sh standby
FastEthernet0/0 - Group 0
(version 2)
State is Standby
4 state changes, last state change 00:00:26
Virtual IP address is 192.168.10.1
Active virtual MAC address is unknown
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.946 secs
Preemption disabled
Active router is 192.168.10.3
Standby router is local
Priority 100 (default 100)
Group name is hsrp-Fa0/0-0 (default)
FastEthernet1/0 - Group 0
(version 2)
State is Active
6 state changes, last state change 00:00:28
Virtual IP address is 192.168.20.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.268 secs
Preemption disabled
Active router is 192.168.20.3
Standby router is local
Priority 100 (default 100)
Group name is hsrp-Fa1/0-0 (default)
FastEthernet2/0 - Group 0
(version 2)
State is Standby
7 state changes, last state change 00:00:31
Virtual IP address is 192.168.30.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.307 secs
Preemption disabled
Active router is 192.168.30.3
Standby router is local
Priority 100 (default 100)
Group name is hsrp-Fa2/0-0 (default)
FastEthernet3/0 - Group 0
(version 2)
State is Standby
7 state changes, last state change 00:00:31
Virtual IP address is 192.168.40.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.064 secs
Preemption disabled
Active router is 192.168.40.3
Standby router is local
Priority 100 (default 100)
Group name is hsrp-Fa3/0-0 (default)
Backup#
PC>ping -t
192.168.40.10
Pinging 192.168.40.10 with
32 bytes of data:
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=127
Reply from 192.168.40.10:
bytes=32 time=16ms TTL=127
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=127 (cae router principal)
---resumido---
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=127 (entra en línea router
backup)
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=127
Reply from 192.168.40.10:
bytes=32 time=16ms TTL=127
---resumido---
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=127
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=127
Ping statistics for
192.168.40.10:
Packets: Sent = 31, Received = 27, Lost = 4 (13% loss),
Approximate round trip times
in milli-seconds:
Minimum = 0ms, Maximum = 32ms, Average = 10ms
Control-C
^C
PC>
Backup#
%HSRP-6-STATECHANGE:
FastEthernet2/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet0/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet3/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Standby -> Active
%HSRP-6-STATECHANGE:
FastEthernet3/0 Grp 0 state Standby -> Active
%HSRP-6-STATECHANGE:
FastEthernet0/0 Grp 0 state Standby -> Active
%HSRP-6-STATECHANGE:
FastEthernet2/0 Grp 0 state Standby -> Active
Backup#sh standby
FastEthernet0/0 - Group 0
(version 2)
State is Active
4 state changes, last state change 00:02:22
Virtual IP address is 192.168.10.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.056 secs
Preemption disabled
Active router is local
Standby router is unknown
Priority 100 (default 100)
Group name is hsrp-Fa0/0-0 (default)
FastEthernet1/0 - Group 0
(version 2)
State is Active
4 state changes, last state change 00:02:20
Virtual IP address is 192.168.20.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.171 secs
Preemption disabled
Active router is local
Standby router is unknown
Priority 100 (default 100)
Group name is hsrp-Fa1/0-0 (default)
FastEthernet2/0 - Group 0
(version 2)
State is Active
5 state changes, last state change 00:02:23
Virtual IP address is 192.168.30.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.091 secs
Preemption disabled
Active router is local
Standby router is unknown
Priority 100 (default 100)
Group name is hsrp-Fa2/0-0 (default)
FastEthernet3/0 - Group 0
(version 2)
State is Active
4 state changes, last state change 00:02:21
Virtual IP address is 192.168.40.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.073 secs
Preemption disabled
Active router is local
Standby router is unknown
Priority 100 (default 100)
Group name is hsrp-Fa3/0-0 (default)
Backup#
Entra en línea nuevamente el
router principal
%HSRP-6-STATECHANGE:
FastEthernet2/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet0/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet3/0 Grp 0 state Speak -> Standby
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Standby -> Active
%HSRP-6-STATECHANGE:
FastEthernet3/0 Grp 0 state Standby -> Active
%HSRP-6-STATECHANGE: FastEthernet0/0
Grp 0 state Standby -> Active
%HSRP-6-STATECHANGE:
FastEthernet2/0 Grp 0 state Standby -> Active
En el router backup: (aunque PT el preempt no siempre funciona)
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Active - > Standby
%HSRP-6-STATECHANGE:
FastEthernet3/0 Grp 0 state Active - > Standby
%HSRP-6-STATECHANGE:
FastEthernet0/0 Grp 0 state Active - > Standby
%HSRP-6-STATECHANGE:
FastEthernet2/0 Grp 0 state Active - > Standby
Caso de que caiga sólamente
un enlace
%HSRP-6-STATECHANGE: FastEthernet1/0
Grp 0 state Active -> Init
%LINEPROTO-5-UPDOWN: Line
protocol on Interface FastEthernet1/0, changed state to down
Router#
En router backup:
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Standby -> Active
Backup#
Se pierde la conectividad ya
que el router backup queda como gateway de la VLAN 20, entrega
el paquete al host de la
VLAN 40, este responde a su gateway (Router) para que reenvíe y éste
tiene el enlace cortado
hacia la VLAN 20, por lo tanto la conectividad
se pierde.
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=127
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=127
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=127
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for
192.168.40.10:
Packets: Sent = 59, Received = 49, Lost = 10 (17% loss),
Approximate round trip times
in milli-seconds:
Minimum = 0ms, Maximum = 32ms, Average = 8ms
Control-C
^C
PC>
Solución:
Router(config)#router
eigrp 100
Router(config-router)#net
192.168.10.0
Router(config-router)#net
192.168.20.0
Router(config-router)#net
192.168.30.0
Router(config-router)#net
192.168.40.0
Router(config-router)#end
Router#
Backup(config)#router
eigrp 100
Backup(config-router)#net
192.168.10.0
Backup(config-router)#net
192.168.20.0
Backup(config-router)#net
192.168.30.0
Backup(config-router)#net
192.168.40.0
Backup(config-router)#end
Backup#
%DUAL-5-NBRCHANGE: IP-EIGRP
100: Neighbor 192.168.20.3 (FastEthernet1/0) is up: new adjacency
%DUAL-5-NBRCHANGE: IP-EIGRP
100: Neighbor 192.168.10.3 (FastEthernet0/0) is up: new adjacency
%DUAL-5-NBRCHANGE: IP-EIGRP
100: Neighbor 192.168.40.3 (FastEthernet3/0) is up: new adjacency
%DUAL-5-NBRCHANGE: IP-EIGRP
100: Neighbor 192.168.30.3 (FastEthernet2/0) is up: new adjacency
Backup#sh ip route
---resumido---
C 192.168.10.0/24 is directly connected, FastEthernet0/0 (no existen cambios porque todas las redes están
C 192.168.20.0/24 is directly connected, FastEthernet1/0 directamente
conectadas y funcionales, todos los
C 192.168.30.0/24 is directly connected, FastEthernet2/0 enlaces estan
activos)
C 192.168.40.0/24 is directly connected, FastEthernet3/0
Backup#
Cae el enlace nuevamente:
Router#
%LINEPROTO-5-UPDOWN: Line
protocol on Interface FastEthernet1/0, changed state to down
%DUAL-5-NBRCHANGE: IP-EIGRP
100: Neighbor 192.168.20.2 (FastEthernet1/0) is down: interface down
Router#
En router backup:
%HSRP-6-STATECHANGE:
FastEthernet1/0 Grp 0 state Standby -> Active
%DUAL-5-NBRCHANGE: IP-EIGRP
100: Neighbor 192.168.20.3 (FastEthernet1/0) is down: holding time expired
Backup#
Router#sh ip route
---resumido---
C 192.168.10.0/24 is directly connected, FastEthernet0/0
D 192.168.20.0/24 [90/30720] via 192.168.40.2, 00:02:44,
FastEthernet3/0 (vía VLAN 40)
[90/30720] via 192.168.10.2,
00:02:44, FastEthernet0/0 (vía VLAN 10)
[90/30720] via 192.168.30.2,
00:02:44, FastEthernet2/0 (vía VLAN 30)
C 192.168.30.0/24 is directly connected, FastEthernet2/0
C 192.168.40.0/24 is directly connected, FastEthernet3/0
Router#
Recorrido del tráfico para
llegar de VLAN 40 a VLAN 20
PC>ipconfig
FastEthernet0
Connection:(default port)
IP Address ......................: 192.168.40.10
Subnet
Mask.....................: 255.255.255.0
Default
Gateway...............: 192.168.40.1
PC>tracert
192.168.20.10
Tracing route to
192.168.20.10 over a maximum of 30 hops:
1 16 ms 0 ms
0 ms 192.168.40.3 (gateway)
2 0 ms 0 ms 0 ms 192.168.40.2 (router backup)
3 0 ms 15 ms 0 ms 192.168.20.10
Trace complete.
PC>
Cae un enlace en router
backup (VLAN 40)
Backup#
%LINEPROTO-5-UPDOWN: Line
protocol on Interface FastEthernet3/0, changed state to down
%DUAL-5-NBRCHANGE: IP-EIGRP
100: Neighbor 192.168.40.3 (FastEthernet3/0) is down: interface down
Backup#sh ip route
---resumido---
C 192.168.10.0/24 is directly connected, FastEthernet0/0
C 192.168.20.0/24 is directly connected, FastEthernet1/0
C 192.168.30.0/24 is directly connected, FastEthernet2/0
D 192.168.40.0/24 [90/30720] via 192.168.10.3, 00:00:36,
FastEthernet0/0 (vía VLAN 10)
[90/30720] via 192.168.30.3,
00:00:36, FastEthernet2/0 (vía VLAN 30)
Backup#
Router#sh ip route (ya no aparece vía VLAN 40)
---resumido---
C 192.168.10.0/24 is directly connected, FastEthernet0/0
D 192.168.20.0/24 [90/30720] via 192.168.10.2, 00:13:19,
FastEthernet0/0 (vía VLAN 10)
[90/30720] via 192.168.30.2,
00:13:19, FastEthernet2/0 (vía VLAN 30)
C 192.168.30.0/24 is directly connected, FastEthernet2/0
C 192.168.40.0/24 is directly connected, FastEthernet3/0
Router#
PC>ipconfig (desde VLAN 20)
FastEthernet0
Connection:(default port)
IP
Address......................: 192.168.20.10
Subnet
Mask..................: 255.255.255.0
Default Gateway.............:
192.168.20.1
PC>tracert
192.168.40.10
Tracing route to
192.168.40.10 over a maximum of 30 hops:
1 10 ms 10 ms
10 ms 192.168.20.1 (gateway: router backup)
2 0 ms 16 ms 10 ms 192.168.10.3
(pasa por la VLAN 10)
3 16 ms 16 ms
16 ms 192.168.40.10 (llega a VLAN 40)
Trace complete.
PC>
Router#sh standby
FastEthernet0/0 - Group 0
(version 2)
---VLAN 10---resumido---
FastEthernet1/0 - Group 0
(version 2) (VLAN 20)
State is Init (interface down)
Virtual IP address is 192.168.20.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 9.90721e+014 secs
Preemption enabled
Active router is unknown
Standby router is unknown
Priority 100 (default 100)
Group name is hsrp-Fa1/0-0 (default)
FastEthernet2/0 - Group 0
(version 2)
---VLAN 30---resumido---
FastEthernet3/0 - Group 0
(version 2) (VLAN 40)
State is Active
4 state changes, last state change 00:04:30
Virtual IP address is 192.168.40.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.366 secs
Preemption enabled
Active router is local
Standby router is 192.168.40.2
Priority 100 (default 100)
Group name is hsrp-Fa3/0-0 (default)
Router#
Backup#sh standby
FastEthernet0/0 - Group 0
(version 2)
---VLAN 10---resumido---
FastEthernet1/0 - Group 0
(version 2) (VLAN 20)
State is Active
4 state changes, last state change 00:01:24
Virtual IP address is 192.168.20.1
Active virtual MAC address is 0000.0C9F.F000
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 2.2 secs
Preemption disabled
Active router is local
Standby router is 192.168.20.3
Priority 100 (default 100)
Group name is hsrp-Fa1/0-0 (default)
FastEthernet2/0 - Group 0 (version
2)
---VLAN 30---resumido---
FastEthernet3/0 - Group 0
(version 2) (VLAN 40)
State is Init (interface down)
Virtual IP address is 192.168.40.1
Active virtual MAC address is unknown
Local virtual MAC address is 0000.0C9F.F000 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 3.916 secs
Preemption disabled
Active router is unknown
Standby router is unknown
Priority 100 (default 100)
Group name is hsrp-Fa3/0-0 (default)
Backup#
PC>ping -t
192.168.40.10
Pinging 192.168.40.10 with
32 bytes of data:
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=127
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=127
---resumido---
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=127
Request timed out. (cae enlace enlace VLAN 20)
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=27ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=31ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=126
Request timed out. (cae enlace enlace VLAN 40 en router backup)
Request timed out.
Reply from 192.168.40.10:
bytes=32 time=16ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=32ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=126
Reply from 192.168.40.10:
bytes=32 time=15ms TTL=126
---resumido---
Reply from 192.168.40.10:
bytes=32 time=0ms TTL=126
Ping statistics for
192.168.40.10:
Packets: Sent = 36, Received = 29, Lost = 6 (20% loss),
Approximate round trip times
in milli-seconds:
Minimum = 0ms, Maximum = 32ms, Average = 8ms
Control-C
^C
PC>
(2013) Networking for hard peoples
Rosario, Argentina