I have set up a apache server in my company which is behind a router. My router have been set up a port forwards (that is 203.xxx.xxx.xxx to 192.168.0.1) so I can access my apache server anywhere. But I can't access my apache server in local by the ip 203.xxx.xxx.xxx. I can just access it by the ip 192.168.0.1. Why is it? Should I set something for my apache server?