Manipulating IP & Netmask.

Description :

Jayesh Kumar
2 min readMar 25, 2021

🔰 14.1 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 implement this setup without using any security rule or firewall. Recommended to use networking tricks i.e. by manipulating IP & Netmask.

1)For this practical we need three OS

2) we to know the IP of all three OS (A,B,C)

IP of A
IP of B
IP of C

3)To do this practical we need to do some changes in the route table .

A route table contains a set of rules, called routes, that are used to determine where network traffic from your subnet or gateway is directed.

4)Here is the route table of OS : A

5)Here is the Route table of OS: B

In this we have given the IP of A so that B can ping A and A can ping B ( we have also provide a fixed genmask)

6)Here is the Route table of OS: C

In this we have given the IP of A so that C can ping A and A can ping C (we have also provided a fixed genmask)

7) RESULT:

Successful B ping to A
Failed B ping to C
Successful C ping to A

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Jayesh Kumar
Jayesh Kumar

Written by Jayesh Kumar

Btech ECE pursuing student ....Arth Learner

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