Lab  7.4.1 RIP Default Route 

Objectives:

  • Use a default route with RIP to setup a gateway of last resort on all RIP routers.

Scenario:

You have a RIP routing domain with only one outside link. You want all routers to send packets to that gateway, if there is not an explicit route listed in the routing table. You must not advertise networks that are not part of your routing domain back into your RIP network.

Lab Task:

  1. Cable the lab and all interfaces as shown in the diagram. Configure a host with ip address 10.1.1.2.
  2. Configure RIP routing on all routers.

    Router-a(config)#router rip
    Router-a(config-router)#network 192.168.11.0
    Router-a(config-router)#network 192.168.9.0

    Router-b(config)#router rip
    Router-b(config-router)#network 192.168.10.0
    Router-b(config-router)#network 192.168.11.0
    Router-b(config-router)#network 192.168.12.0

    Router-c(config)#router rip
    Router-c(config-router)#network 192.168.10.0
    Router-c(config-router)#default-information originate

  3. Verify that RIP is configured correctly and all routes are listed in the routing table.
    On Router C the 10.0.0.0 network should be directly connected, but not listed in the routing table of the other routers.
  4. Is there a gateway of last resort set in the routing tables of all the routers?
    Try to ping and trace to 10.1.1.1 and 10.1.1.2 from Router A and Router B. Does it work? Record your answers below.



  5. Configure Router C with a default static route.
    Router-c(config)#ip route 0.0.0.0 0.0.0.0 FastEthernet0/0

  6. Issue the command show ip route on all routers to see if the default static route is listed. Is there a gateway of last resort listed in the routing table of every router?



  7. Issue the commands ping and trace 10.1.1.1 and 10.1.1.2 from all routers. Record your results below.