> If yes, What are the problems for changing IP where > the app on 10.0.0.21 tries to contact to? Probably it would be simpler. >
The router has 192.168.1.2 on its WAN address. It is not simpler.
> If yes, What are the problems for changing IP where > the app on 10.0.0.21 tries to contact to? Probably it would be simpler. >
The router has 192.168.1.2 on its WAN address. It is not simpler.