Rutas Cisco

Pequeña guía básica para enrutar caminos en un router Cisco.

Rutas estáticas

- Configurar una ruta estática (ip route)

r2>enable

Password:

r2#configure terminal

Enter configuration commands, one per line.  End with CNTL/Z.

r2(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1

r2(config)#end

%SYS-5-CONFIG_I: Configured from console by console

r2#

- Ver rutas conectadas (show ip route)

R2#show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

       E1 - OSPF external type 1, E2 - OSPF external type 2

       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS le

       ia - IS-IS inter area, * - candidate default, U - per-user stati

       o - ODR, P - periodic downloaded static route

Gateway of last resort is 0.0.0.0 to network 0.0.0.0

     172.1.0.0/16 is variably subnetted, 3 subnets, 2 masks

S       172.1.0.1/32 [1/0] via 172.4.0.2

D       172.1.0.0/16 [90/297246976] via 10.10.12.25, 10:06:16, Tunnel2

S       172.1.0.3/32 [1/0] via 172.4.0.2

D    172.2.0.0/16 [90/310046976] via 10.10.12.25, 10:06:10, Tunnel2

D    172.3.0.0/16 [90/310046976] via 10.10.12.25, 10:06:14, Tunnel2

C    172.4.0.0/16 is directly connected, FastEthernet0

D    172.5.0.0/16 [90/310046976] via 10.10.12.25, 06:22:36, Tunnel2

D    172.7.0.0/16 [90/310046976] via 10.10.12.25, 00:14:59, Tunnel2

D    172.8.0.0/16 [90/310046976] via 10.10.12.25, 10:06:12, Tunnel2

Gateway of last resort is not set

…..

Rutas  Dinámicas

- Activar el protocolo de enrutamiento (route)

Router(config)# router name_of_the_IP_routing_protocol   

Router(config-router)#

- Para consultar tipos de protocolo (route ?)

r2(config)#route ?

  eigrp  Enhanced Interior Gateway Routing Protocol (EIGRP)

  ospf   Open Shortest Path First (OSPF)

  rip    Routing Information Protocol (RIP)

r2>enable

Password:

r2#configure terminal

Enter configuration commands, one per line.  End with CNTL/Z.

r2(config)#route rip

r2(config-router)#network 192.168.0.1

RIP Configuration

-Opción 1:

R2(config)# router rip

R2(config-router)# network IP_network_#

R2(config-router)# version 1|2

-Opción 2:

r2(config)# interface type [slot_#/]port_#

r2(config-router)# ip rip send version 1 | version 2

- Ejemplo

r2>enable

Password:

r2#configure terminal

Enter configuration commands, one per line.  End with CNTL/Z.

r2(config)#route rip

r2(config-router)#network 192.168.0.1

r2(config-router)#network 172.0.0.1

r2(config-router)#version 2

r2(config-router)#

Más comandos útiles relacionados con el post:

Clear ip route * : Vacía y reconstruye la tabla de enrutamiento, las rutas dinámicas.
show ip route : para ver la tabla de enrutamiento

no ip route : para borrar rutas estáticas.