You can't set a server-ip from server.properties. Your computer is handed an ip-adress from you router, so if you want to change the ip set to your computer, you'll have to do that in the routers settings. 127.0.0.1 is just a handle for "This machine" and corresponds to whatever ip you computer currently has, but only localy.
(This is not a bug, just trying to be helpful. But I get the feeling that you don't really know what you are getting yourself into)
Markus Kothe
You can't set a server-ip from server.properties. Your computer is handed an ip-adress from you router, so if you want to change the ip set to your computer, you'll have to do that in the routers settings. 127.0.0.1 is just a handle for "This machine" and corresponds to whatever ip you computer currently has, but only localy.
(This is not a bug, just trying to be helpful. But I get the feeling that you don't really know what you are getting yourself into)