
In this blog I’m going to create a network Topology Setup in such a way that System A can ping to two Systems System B and System C but both these systems should not be pinging each other without using any security rule eg, firewall etc.
1.Create three systems and the find the IP addresses of this three systems.
3 min readJan 8, 2021
System_A
2.Change the IP of the system and add a Manual IP.

Now,Using ifconfig enp0s3 command ,you can check the IP of the system.

3. By using,route -n command, you can check the routing table of the system.

System_B
1.Change the IP of the system and add a Manual IP.

2.Change the IP of the the system such that it can be pingable by SystemA,you can check the IP .

3.Add the range in the routing table of the system.By using,route -n command, you can check the routing table of the system.

System_C
1.Change the IP of the system such that it can be pingable by SystemA.The Ip should come in the range of SystemA but not in range of SystemB.

2.I have added the range according to IP of the SystemA that it can ping SystemA,and also check the IP ifconfig enp0s3 command is used.

3.Now, add the Mannual IP to the routing table in the system.

Check the Pinging SystemA to SystemB and SystemC.


Here,you can see the SystemA is pinging to both SystemB ans SystemC.
Now,Ping the SystemB to SystemA and SystemC.

SystemB is pinging to SystemA and not pinging to SystemC.
Now ,ping the SystemC to SystemA and SystemC to SystemB.

But the System C is unable to Ping System B.
