Networking Task

Nishant Saini
3 min readMay 20, 2021

Task Description :

Create a network Topology Setup in such a way so that System A can ping to two Systems i.e System B and System C but both these systems should
not be pinging each other without using any security rule e.g firewall etc.

This task can be solved with the concept of the subnet.

First of all, I Launched three V.M in base O.S, then I give a different hostname to all the V.M’S.

We want that system1(i.e IP 192.168.29.109) can ping to system2(i.e IP 192.168.29.239) and system3(i.e IP 192.168.29.148), but system2 and system3 can't ping to each other.

First of all, go to the terminal of system1 and do ping to system2 and system3.

Now, go to system2 and do ping to system1 and system3.

Now, go to system3 and do ping to system1 and system2.

All the nodes have connectivity with each other, but we want that system2 and system3 shouldn’t have connectivity with each other.

So, go to system2 and run the commands i.e delete the gateway of system2.

Now, system2 can't ping to either system1 or system2.

But, we want system2 can ping to system1.

So we will give such a subnet as gateway to system2 so that system1 and system2 come in same subnet and they can connect to each other.

Now, system1 (i.e IP 192.168.29.109) can ping to system2(i.e IP 192.168.29.239) and system3(i.e IP 192.168.29.148) , but both these systems can't ping to each other.

Hence, the task completed.

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Nishant Saini
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RedHat Certified Engineer (RHCE) | AWS Academy Graduate | DevOps Enthusiast