How do I know which IP address to use?

[SazanOFF94]

Where to watch it? I am connected to the Internet through a network router D-Link dir300 if I can put the server?

[MentaL]

[Eduardo Maia]

MyIP.es - Cual es mi ip? My ip? Direccion ip? - to know your online ip

If you use Windows 7, go to start, and in run, say CMD and press ENTER
Next, in command prompt, say ipconfig and press ENTER, you will get a windows like this:

Sufijo DNS específico para la conexión. . : hitronhub.home
Vínculo: dirección IPv6 local. . . : fe80::6990:62f8:5e6d:1b4b%10
Dirección IPv4. . . . . . . . . . . . . . : 192.168.1.12
Máscara de subred . . . . . . . . . . . . : 255.255.255.0
Puerta de enlace predeterminada . . . . . : 192.168.1.1

192.168.1.12 is my lan ip (in my case)!
192.168.1.1 is my router IP!