Setting up the topology such that A can ping to B and C computer and vice but B can’t ping to C.
The above scenario can be achieved using using some basic networking skills , such as updating routing table, concepts of subnets and network id….
Flush up all the default entries of Routing Table :
We have deleted the internet connectivity entry from routing table
This means we will not able to ping to internet now
We have assigned IP 192.168.50.1 to Computer A
also added network ID :
Now if we try to ping internet , we can’t.Thus setup for A is ready now.
Here we would like to associate custom IP : 192.168.50.2 to Computer B
Deleting routing entries in routing table , now we can’t ping to Internet as well as system A or C too…
Now adding routing table entries in computer B ,so that A can be pinged:
Similar setup has to be done in Computer C too…
Lets see how ?:
We have assigned IP : 192.168.50.3 to NIC and deleted the routing table entry as done in computer B and A
Now adding network range 192.168.50.0/31 , we are able to ping to IP 192.168.50.1 that is of computer A but not the internet ..
Now all the three computer are configured as per asked scenario:
Lets have a look:
Thus , simple topology can be integrated knowing some basic skills of networking without specifying any firewall rules……
Happy Reading …..