Connect two physically seperated networks

September 1, 2010 at 07:06:39
Specs: Windows 7
Network-1:, has a default gateway and DNS.
Network-2: has no default gateway or DNS.

Currently the PC is connected to the two networks via 1 'USB to Ethernet Adapters' (Network-1) and 1 internal NIC card (Network-2).

I would like to know if I have the following opions:
1. Add a extra NIC card on the PCI slot of the PC and connect the Network-1 to this.

2. Can I use a router to connect the two networks and use the single NIC card but not sure if my applications will be able to connect to the resources.

Some more details on the PC and the Applications: The PC does not require internet. The network-1 is used for accessing a shared folder on the server. The network-2 is a network of Analyzer instruments and each instrument has a unique IP in the form of 10.10.10.X. The application running on this PC connect to these instrumets to get the results which it then combines and computes and then is stored on the server located on the network-1.

Thank you in advance and really appreciate any guidance or suggestions.


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September 1, 2010 at 08:07:25
What about the present setup does not work for you? Just wondering why you want to make a change since it appears to be working.

You could put in a two wan port router but I believe that would be overkill for your situation.
Shame you couldn't just change the 10.x network to the 192.x network. How many devices are we talking here?

With no dns/name resolution on the 10.x network name resolution has to default to broadcasts. This means you will experience lags when accessing this network. Might want to consider making a hosts file and populating it with all the device names/ip addresses.

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September 1, 2010 at 09:34:56

Thank you for the response.

The in current situation, the problem is the station is used by multiple operators who sometimes disconnect the USB adapter on the machine (as its the only one, this is very old PC) and insert their USB thumbdrives or very rarely the USB to Ethernet adapters fail due to the condition in the room (Chemical Lab).

There are 23 Instruments with IP addresses in the form 10.10.10.X. They are all connected to a Switch. The PC is connected to this switch and thats how they communicate. As you mentioned about the LAG, I have seen sometimes there are connection issues that occur with the instruments.

Please give me more details on how to create a host file, Thank you in advance!

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