Configure floating routing to achieve link Redundancy

Lab report

I. Tutorial Purpose

Configure floating routing to achieve link Redundancy

Ii. Experiment Topology

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Iii. Experiment steps

1. Connect the link according to the topology diagram (add NM-1FE-TX module on R1 and R2 respectively)

2. Configure the address on pC1

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3. The configuration steps on R1 are as follows:

1) configure the basic port address

R1 (config) # int F0/0

R1 (config-If) # IP add 192.168.1.254 255.255.255.0

R1 (config-If) # No sh

R1r (config-If) # exit

R1 (config) # int F0/1

R1 (config-If) # IP add 192.168.2.1 255.255.255.0

R1 (config-If) # No Shu

R1 (config-If) # exit

2) configure a static route to 192.168.3.0/24

R1 (config) # IP Route 192.168.3.0 255.255.255.0 F0/1

4. The configuration steps on R2 are as follows:

1) configure the basic port address

R2 (config) # int F0/0

R2 (config-If) # IP add 192.168.3.254 255.255.255.0

R2 (config-If) # No Shu

R2 (config-If) # exit

R2 (config) # int F0/1

R2 (config-If) # IP add 192.168.2.2 255.255.255.0

R2 (config-If) # No Shu

R2 (config-If) # exit

2) configure a static route to 192.168.1.0/24

R2 (config) # ip r 192.168.1.0 255.255.255.0 F0/1

5. Configure the address on PC2

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6. Test connectivity, pC1 Ping PC2

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Check the route table on R1 and find that the network accessing 192.168.3.0/24 through 192.168.1.0/24 is through port F0/1.

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Check the route table on R2 and find that the network accessing 192.168.1.0/24 through 192.168.3.0/24 is through port F0/1.

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7. Configure redundant links

1) configure the IP address on port F1/0 of r1

R1 (config) # int F1/0

R1 (config-If) # IP add 192.168.4.1 255.255.255.0

R1 (config-If) # No Shu

R1 (config-If) # exit

2) configure the IP address on port F1/0 of R2.

R2 (config) # int F1/0

R2 (config-If) # IP add 192.168.4.2 255.255.255.0

R2 (config-If) # No Shu

R2 (config-If) # exit

3) configure a static backup route on r1r2 and set the measurement value to 50.

R1 (config) # IP Route 192.168.3.0 255.255.255.0 F1/0 50

R2 (config) # IP Route 192.168.1.0 255.255.255.0 F1/0 50

8. Shutdown F0/1 of R1 to test whether pC1 can communicate with pc2.

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Redundant links

Check the route table on R1 and find that the network accessing 192.168.3.0/24 through 192.168.1.0/24 is through port F1/0.

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Check the route table on R2 and find that the network accessing 192.168.1.0/24 through 192.168.3.0/24 is through port F1/0.

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Iv. Experiment Summary

You can configure a floating route to implement redundant link backup. When one link is down, the other link can still implement communication.