I have a program on a local workstation that asks to connect to 192.168.1.20. The workstation used to be 192.168.1.21. So both were in the same LAN. I have changed the IPs of both machines to 10.0.0.20 and 10.0.0.21, repectively but the app on 10.0.0.21 keeps trying to connect to 192.168.1.20 instead of 10.0.0.20.
My idea was to configure the router to forward all packets that go for 192.168.1.20 to 10.0.0.20. All traffic that goes to 192.168.1.20 will probably go to the router because it is the default gateway. The router has 2 IPs: 10.0.0.1 (LAN) and 192.168.1.2 (WAN).
