Este laboratorio EIGRP se basará en la imagen anterior y tendrá por objetivo realizar la convergencia con el protocolo EIGRP. Para eso, deberemos seguir los siguientes pasos.
Desarrollo:
- Configurar las direcciones IP de las interfaces.
- Aplicar enrutamiento con EIGRP SA 23.
- Verificar la información de las tablas de EIGRP. Probar conectividad entre las loopback.
La configuración además debe cumplir los siguientes requisitos:
- Modificar el ancho de banda en el enlace serial entre R1 y R3 a 128000 bps.
- Evitar que los mensajes de EIGRP sean enviados a las interfaces loopback.
- Permitir a R2 hacer balanceo de carga (con métricas desiguales) entre 2 rutas.
- Aplicar autenticación a EIGRP con password simple entre R1 y R3. (password: cisco1).
- Aplicar autenticación a EIGRP usando MD5 entre R3 y R4. (password: cisco2).
- Configurar R4 para que informe una ruta resumen de las loopback 41, 42, 43 y 44.
Desarrollo ejercicio
Configurar las direcciones IP de las interfaces
R1#conf t R1(config)#int f0/0 R1(config-if)#ip address 192.168.60.1 255.255.255.240 R1(config-if)#no shutdown R1(config-if)#exit R1(config-if)#exit R1(config)#int s1/0 R1(config-if)#ip address 20.0.0.1 255.255.255.252 R1(config-if)#no shutdown R1(config-if)#exit R1(config)#int s1/1 R1(config-if)#ip address 20.0.0.5 255.255.255.252 R1(config-if)#no shutdown R1(config-if)#exit R2#conf t R2(config)#int f0/0 R2(config-if)#ip address 192.168.60.2 255.255.255.240 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#int s1/0 R2(config-if)#ip address 20.0.0.2 255.255.255.252 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#int loopback 2 R2(config-if)#ip address 10.10.2.1 255.255.255.252 R2(config-if)#no shutdown R2(config-if)#exit R3#conf t R3(config)#int f0/0 R3(config-if)#ip address 192.168.60.3 255.255.255.240 R3(config-if)#no shutdown R3(config-if)#exit R3(config)#int s1/1 R3(config-if)#ip address 20.0.0.6 255.255.255.252 R3(config-if)#no shutdown R3(config-if)#exit R3(config)#int s1/0 R3(config-if)#ip address 20.0.0.9 255.255.255.252 R3(config-if)#no shutdown R3(config-if)#exit R4#conf t R4(config)#int s1/0 R4(config-if)#ip address 20.0.0.10 255.255.255.252 R4(config-if)#no shutdown R4(config-if)#exit R4(config)#int loopback 41 R4(config-if)#ip address 40.10.64.1 255.255.224.0 R4(config-if)#no shutdown R4(config-if)#exit R4(config)#int loopback 42 R4(config-if)#ip address 40.10.128.1 255.255.240.0 R4(config-if)#no shutdown R4(config-if)#exit R4(config)#int loopback 43 R4(config-if)#ip address 40.10.144.1 255.255.254.0 R4(config-if)#no shutdown R4(config-if)#exit R4(config)#int loopback 44 R4(config-if)#ip address 40.10.146.1 255.255.255.0 R4(config-if)#no shutdown R4(config-if)#exit
Aplicar enrutamiento con EIGRP SA 23
R1(config)#router eigrp 23 R1(config-router)#no auto-summary R1(config-router)#network 192.168.60.0 R1(config-router)#network 20.0.0.0 R1(config-router)#network 20.0.0.4 R1(config-router)#exit R2(config)#router eigrp 23 R2(config-router)#no auto-summary R2(config-router)#network 192.168.60.0 R2(config-router)#network 20.0.0.0 R2(config-router)#network 10.10.2.0 R2(config-router)#exit R3(config)#router eigrp 23 R3(config-router)#no auto-summary R3(config-router)#network 192.168.60.0 R3(config-router)#network 20.0.0.4 R3(config-router)#network 20.0.0.8 R3(config-router)#exit R4(config)#router eigrp 23 R4(config-router)#no auto-summary R4(config-router)#network 20.0.0.8 R4(config-router)#network 40.10.64.0 R4(config-router)#network 40.10.128.0 R4(config-router)#network 40.10.144.0 R4(config-router)#network 40.10.146.0 R4(config-router)#exit
Verificar la información de las tablas de EIGRP. Probar conectividad entre las loopback.
R1#sh ip route 192.168.60.0/28 is subnetted, 1 subnets C 192.168.60.0 is directly connected, FastEthernet0/0 20.0.0.0/30 is subnetted, 3 subnets C 20.0.0.4 is directly connected, Serial1/1 C 20.0.0.0 is directly connected, Serial1/0 D 20.0.0.8 [90/2172416] via 192.168.60.3, 00:03:57, FastEthernet0/0 40.0.0.0/8 is variably subnetted, 4 subnets, 4 masks D 40.10.64.0/19 [90/2300416] via 192.168.60.3, 00:02:44, FastEthernet0/0 D 40.10.128.0/20 [90/2300416] via 192.168.60.3, 00:02:44, FastEthernet0/0 D 40.10.146.0/24 [90/2300416] via 192.168.60.3, 00:02:44, FastEthernet0/0 D 40.10.144.0/23 [90/2300416] via 192.168.60.3, 00:02:44, FastEthernet0/0 10.0.0.0/30 is subnetted, 1 subnets D 10.10.2.0 [90/156160] via 192.168.60.2, 00:03:58, FastEthernet0/0 R2#sh ip route 192.168.60.0/28 is subnetted, 1 subnets C 192.168.60.0 is directly connected, FastEthernet0/0 20.0.0.0/30 is subnetted, 3 subnets D 20.0.0.4 [90/20514560] via 192.168.60.3, 00:04:54, FastEthernet0/0 [90/20514560] via 192.168.60.1, 00:04:54, FastEthernet0/0 C 20.0.0.0 is directly connected, Serial1/0 D 20.0.0.8 [90/2172416] via 192.168.60.3, 00:04:54, FastEthernet0/0 40.0.0.0/8 is variably subnetted, 4 subnets, 4 masks D 40.10.64.0/19 [90/2300416] via 192.168.60.3, 00:03:41, FastEthernet0/0 D 40.10.128.0/20 [90/2300416] via 192.168.60.3, 00:03:41, FastEthernet0/0 D 40.10.146.0/24 [90/2300416] via 192.168.60.3, 00:03:41, FastEthernet0/0 D 40.10.144.0/23 [90/2300416] via 192.168.60.3, 00:03:42, FastEthernet0/0 10.0.0.0/30 is subnetted, 1 subnets C 10.10.2.0 is directly connected, Loopback2 R3#sh ip route 192.168.60.0/28 is subnetted, 1 subnets C 192.168.60.0 is directly connected, FastEthernet0/0 20.0.0.0/30 is subnetted, 3 subnets C 20.0.0.4 is directly connected, Serial1/1 D 20.0.0.0 [90/2172416] via 192.168.60.2, 00:05:39, FastEthernet0/0 [90/2172416] via 192.168.60.1, 00:05:39, FastEthernet0/0 C 20.0.0.8 is directly connected, Serial1/0 40.0.0.0/8 is variably subnetted, 4 subnets, 4 masks D 40.10.64.0/19 [90/2297856] via 20.0.0.10, 00:04:26, Serial1/0 D 40.10.128.0/20 [90/2297856] via 20.0.0.10, 00:04:26, Serial1/0 D 40.10.146.0/24 [90/2297856] via 20.0.0.10, 00:04:26, Serial1/0 D 40.10.144.0/23 [90/2297856] via 20.0.0.10, 00:04:26, Serial1/0 10.0.0.0/30 is subnetted, 1 subnets D 10.10.2.0 [90/156160] via 192.168.60.2, 00:05:40, FastEthernet0/0 R4#sh ip route 192.168.60.0/28 is subnetted, 1 subnets D 192.168.60.0 [90/2172416] via 20.0.0.9, 00:05:14, Serial1/0 20.0.0.0/30 is subnetted, 3 subnets D 20.0.0.4 [90/21024000] via 20.0.0.9, 00:05:14, Serial1/0 D 20.0.0.0 [90/2684416] via 20.0.0.9, 00:05:14, Serial1/0 C 20.0.0.8 is directly connected, Serial1/0 40.0.0.0/8 is variably subnetted, 4 subnets, 4 masks C 40.10.64.0/19 is directly connected, Loopback41 C 40.10.128.0/20 is directly connected, Loopback42 C 40.10.146.0/24 is directly connected, Loopback44 C 40.10.144.0/23 is directly connected, Loopback43 10.0.0.0/30 is subnetted, 1 subnets D 10.10.2.0 [90/2300416] via 20.0.0.9, 00:05:14, Serial1/0 R2#ping 40.10.64.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 40.10.64.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 24/39/64 ms R2#ping 40.10.128.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 40.10.128.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 32/49/64 ms R2#ping 40.10.144.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 40.10.144.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/44/88 ms R2#ping 40.10.146.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 40.10.146.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 20/41/96 ms R4#ping 10.10.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.10.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/46/92 ms
Modificar el ancho de banda en el enlace serial entre R1 y R3 a 128000 bps.
R1(config)#int s1/1 R1(config-if)#bandwidth 128 R1(config-if)#exit R3(config)#int s1/1 R3(config-if)#bandwidth 128 R3(config-if)#exit
Evitar que los mensajes de EIGRP sean enviados a las interfaces loopback.
R2(config)#router eigrp 23 R2(config-router)#passive-interface loopback 2 R2(config-router)#exit R4(config)#router eigrp 23 R4(config-router)#passive-interface loopback 41 R4(config-router)#passive-interface loopback 42 R4(config-router)#passive-interface loopback 43 R4(config-router)#passive-interface loopback 44 R4(config-router)#exit
Permitir a R2 hacer balanceo de carga (con métricas desiguales) entre 2 rutas.
R2(config)#router eigrp 23 R2(config-router)#variance 2 R2(config-router)#exit
Aplicar autenticación a EIGRP con password simple entre R1 y R3. (password: cisco1).
R1(config)#key chain EIGRP-KEYS R1(config-keychain)#key 1 R1(config-keychain-key)#key-string cisco1 R1(config-keychain-key)#exit R1(config-keychain)#exit R1(config)#int s1/1 R1(config-if)#ip authentication key-chain eigrp 23 EIGRP-KEYS R1(config-if)#exit R3(config)#key chain EIGRP-KEYS R3(config-keychain-key)#key-string cisco1 R3(config-keychain-key)#exit R3(config-keychain)#exit R3(config)#int s1/1 R3(config-if)#ip authentication key-chain eigrp 23 EIGRP-KEYS R3(config-if)#exit
Aplicar autenticación a EIGRP usando MD5 entre R3 y R4. (password: cisco2).
R3(config)#key chain EIGRP-KEYS2 R3(config-keychain-key)#key-string cisco2 R3(config-keychain-key)#exit R3(config-keychain)#exit R3(config)#int s1/0 R3(config-if)#ip authentication key-chain eigrp 23 EIGRP-KEYS2 R3(config-if)#ip authentication mode eigrp 23 md5 R3(config-if)#exit R4(config)#key chain EIGRP-KEYS2 R4(config-keychain-key)#key-string cisco2 R4(config-keychain-key)#exit R4(config-keychain)#exit R4(config)#int s1/0 R4(config-if)#ip authentication key-chain eigrp 23 EIGRP-KEYS2 R4(config-if)#ip authentication mode eigrp 23 md5 R4(config-if)#exit
Configurar R4 para que informe una ruta resumen de las loopback 41, 42, 43 y 44.
R4(config)#router eigrp 23 R4(config-router)#auto-summary R4(config-router)#exit R4(config)#int s1/0 R4(config-if)#ip summary-address eigrp 23 40.10.0.0 255.255.0.0 R4(config-if)#exit
