CREATING A SETUP SUCH THAT SYSTEM A CAN PING SYSTEMS B AND C BUT THEY SHOULD NOT PING EACH OTHER.
This type of setup can be done two ways : 1. By blocking systems using firewall 2. By modifying routing table.
Here we are gonna use routing table method to this.
So first we find our system’s IPs using :
System A :
ip = 192.168.43.122
System B :
ip = 192.168.43.14
System C :
Now we check if System A is pinging to System B and C :
as we can see they are connected.
Now we check if System B is able to ping System A and C :
as we can see they are also connected.
Now we check if System C is able to ping System B and A :
at last we can see C is also connected.
now we change the routing table for system B:
route add host <ip_address of system C> reject
now we can see system B can’t ping to System C but can ping to system A.
similarly we check for System C :
we can see it can’t ping System B but can ping System A.
Hence we can conclude that System B and C are not pinging to each other but can ping System A.
and System A is still able to ping System B and System C.
OUR SETUP IS COMPLETE.