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Allow wired and wireless computers to connect to same LAN

My client has 6 computers running Windows 7 pro . My client will migrate to new computers running Windows 10 pro . There is NO server. All computers are connected as peer-to-peer. Both types of computers will have to be used for a while until the new Windows 10 pro computers are fully configured.

The problem: The Windows 7 pro computers all have static ip addresses . They run ancient software which must communicate with an old IBM computer. The old IBM computer has a static address of 192.168.1.1 . My client wants to avoid running new network wires to connect the Windows 10 pro computers. Comcast supplies the Internet and telephone service. Their modem currently provides the wireless connection to the Internet.
The Comcast base ip address is 10.1.10.1 . I asked Comcast to change their modem address to 192.168.0.2. They tell me they cannot do this.
It is SO frustrating.

A possible solution: I need to get the wired computers and the wireless devices on the same network. My thought is to buy a modem which can handle wireless and wired connections , set the dhcp address on it to 192.168.1.2 and set the gateway address to 10.1.10.1. I assume then when the wired computers want to navigate to Google.com, the router I purchase would simply transfer the request to the Comcast modem so it could then contact Google.com (or any other Internet site)

Please share your thoughts about this solution OR suggest a better solution. Thank you for your help.

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Scott Silva

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Kimputer

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kevinhsieh

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Dr. Klahn

If this is a business, I/M/O there should be no wireless network at all.

See also:

https://www.experts-exchange.com/questions/29235799/Is-it-necessary-for-security-to-use-non-descript-wireless-network-names.html

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Scott Silva

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kevinhsieh

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CompProbSolv

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Lee W, MVP

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Craig Beck

From what I'm reading, you can do this with no extra hardware whatsoever. Just configure each W7 PC with an additional static IP on the same range as the Comcast router, and set the default gateway to be the IP of the Comcast router.

CompProbSolv

Craig Beck's solution is quite simple and clever. You'd have to make a wired connection between your existing wired network and the LAN side of the Comcast router to allow the Windows 7 and 10 computers to be on the same network.

Do the Windows 10 computers need to communicate with the old IBM computer? If so, you'd need to put a secondary IP address in the 192.168.1.x subnet on them.

If you go this route, make sure that the ONLY gateway on the devices is 10.1.10.1.

When you say you want the Windows 7 and 10 computers on the same network, what resources do each need to access? The IBM computer, network shares, internet, printers, or?

donpick

ASKER

Thank you to all of you for sending DETAILED answers. This is what I need and why I pay for this service.

Scott Silva

To be honest I don't think I have ever ASKED a question in here... Just answered a few...