Seperating networks on same physical media
Posted on 2000-03-27
Ok here's the setup.
Currently we have about 200 mixed machines set up on the same subnet. By mixed I mean business app machines and a few process control machines. One process control server and about 5 clients. Currently all machines are behind a router on subnet xxx.xxx.74.xxx.
The desired result is to have the Process control machines to be on the network as if it were seperate. This could be acheived by running seperate cable for the 6 machines involved and connecting them to their own router(to connect to the rest of the network. However the cost of running cable etc is not desired.
So how do we get the 6 process control machines and the 200 or so business machines to co exist on the same physical network but to not be in any position to see each other. Meaning I don't want to be able to sit down at a businness machine and see the process control machine on the network**. I don't want packets that are meant for machines on the xxx.xxx.74.xxx network going to any of the process control machines.
The process control machines could be set up on their own subnet say xxx.xxx.19.xxx.
** In some cases we may want specific business machines to see the process control machines.
I'm guessing when I'm thinking that we could change the process control machines to the 19 subnet and update the router so it knows to pass on packets for 74 and 19 subnets. Clients on 74 should then not be able to see 19?? Ahh I really don't know that's why I asking 8-)
If I have been unclear of the situation or desired result let me know.