Friday, November 5, 2021

Router responding to all ARP requests.

I have an industrial router (like Moxa or Phoenix) in a machine that is doing basic NAT to allow the machine controller to talk to a file server.

After updating the IP of the router and Nat to a new address the router now responds to all ARP requests on that subnet, essentially creating ip conflicts for every address on the subnet.

Have any of you ever seen anything like it?



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