Question

2 independent networks on 1 PC?

I am trying to connect 2 networks (1 LAN and 1 internet) to a single PC and I would like some advice on how to avoid IP conflicts.

I currently have 2 network cards on the PC. One is connected to a router with internet connection. The other is connected to a network switch that has equipment for our internal network connected to it.

I have been having an issue where the router assigns IP addresses that are the same as devices on the internal network, creating conflicts. Is there any way that I can separate the two networks so they do not communicate with each other at all, or prevent IP conflicts?

Thank you

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Answer
Sorry

But this is basic IP networking. You can have two IPs and all the rules apply. There would be no conflicts if say LAN 1 is 192.168.0.1/24 and the second is 10.0.0.0/24 but you didn't reveal the plan.

Also, there is the windows routing table to consider. That's pretty advanced but at no time will a packet go from one NIC to the other unless you routed it.

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Answer
Let's work on this.

" the router assigns IP addresses that are the same as devices on the internal network "

That's a simple problem. All I need to do is configure the DHCP server to hand out non-conflicting IPs. Why didn't your IT do that?

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