Connecting Two Routers in Different Networks via Static Routing

cisco-commandsrouting

I am very new to networking in general. For one of my assignments, I need to be able to ping two routers ( R5 must be able to ping R4 ) in different networks.
SimpleTopology

For this, I set up routing in both R1 and R2. Here is the configuration for R1:

R1(config)#ip route 21.0.0.0 255.255.255.0 10.0.0.2.

and here is the route configuration for R2:

R2(config)#ip route 11.0.0.0 255.255.255.0 10.0.0.1

I might be missing an obvious thing here. R1 and R2 can ping each other. However, R2/R4 cannot ping to R5 and R1/R5 cannot ping to R4.
Lets ignore the cloud and the VPC interface shown.
Could anyone please tell me what is happening and what i am missing? I am a newbie and I have limited knowledge as I am just starting. I am using GNS3.

EDIT 1:
Here are the routing tables so far.
enter image description here

Best Answer

Sorry for answering rather old question.

Speaking about GNS-3: you can change the label of R1 or some other router if you stop the device (right-click the router, select stop), then right-click it and select configure.

Glad to hear you managed to add routes:

R4(config)#ip route 11.0.0.0 255.255.255.0 21.0.0.1

R5(config)# ip route 21.0.0.0 255.255.255.0 11.0.0.1

I think your problem is not solved in its entirety though - as long as R5 does not know how to reach network 10.0.0.0/24 (as a result R5 cannot ping 10.0.0.2 and vice-versa). The same goes for R4 and the network 10.0.0.0/24.

So, you should add a pair of routes:

R4(config)#ip route 10.0.0.0 255.255.255.0 21.0.0.1

R5(config)# ip route 10.0.0.0 255.255.255.0 11.0.0.1

After that all the IPs of your lab are pingable.

BTW, you could replace a pair of routes with one default route, the result would be the same. For R5 it would be:

R5#(config)ip route 0.0.0.0 0.0.0.0 11.0.0.1

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