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Setup multiple NICs

Setup multiple NICs

Setup multiple NICs

I need to setup a PC with 2 NIC cards installed.  I need one NIC to communicate with a control unit on a machine in my shop.  The other NIC needs to be setup to connect to my in house network.  Can someone point me in the right direction for information on how to accomplish this?

RE: Setup multiple NICs


The first thing we need to establish is do you want the control unit machine to talk to your home network?

Using 1 switch / router you can make it so that the control unit PC can't talk to the home network quite easily.  For example:

1) Plug all computers/devices into the same switch/router.
2) On the control unit PC set:
  IP =
  Subnet mask =
  Default gateway = leave blank
  (this will prevent the control unit machine from talking to the Internet)
3) On the machine that has 2 network cards (NICs):

NIC1 (home network):
  IP =
  Subnet mask =
  Default gateway = (assuming this is your router's IP address)

NIC2 (talk to control unit machine):
  IP =
  Subnet mask =
  Default gateway = leave blank as this computer shouldn't have 2 gateways set anyway.

You'll be better off setting the IP Addresses manually to ensure the communication occurs correctly.  With this setup, even if on the same switch/router, the control PC can't talk to the rest of the home network (it's on a different subnet.  I'm not the best person to explain those though).

Does that help?


Jonathan Haddock
Network Manager
Barton Court Grammar School

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