Lab  7.4.5 Floating Static Route 

Objectives:

  • Use a floating static route to setup a backup route that will only appear in the routing table when the link advertised by the routing protocol fails.

Scenario: 

Router B learns about the 10.0.0.0 via RIP with the next hop being 192.168.10.2. Router B also has an unadvertised link to 10.0.0.0 via Router A. The link between Router B and Router A is a high cost link that is not to be used unless the link between Router B and Router C goes down.

Lab Task:

  1. Cable the lab and all interfaces as shown in the diagram. Don't forget the no shutdown command.

  2. Configure RIP routing on routers B and C.
  3. 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)#network 10.0.0.0

  4. Configure RIP routing as follows on Router A.
  5. Router-a(config)#router rip 
    Router-a(config-router)#network 192.168.11.0

  6. Verify that RIP is configured correctly and all routes are seen. On Router A the 10.0.0.0 network should be directly  connected but from Router B it should be advertised from Router C only.

  7. Configure Router B with a floating static route.
  8. Router-b(config)#ip route 0.0.0.0 0.0.0.0 192.168.11.2 130

  9. Issue the command show ip route on all routers to see if the static route is listed.

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


  11. Shutdown the link between Router-B and Router-C.
  12. Issue the command show ip route on all routers to see if the static route is listed.

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