I have a dlink pre N wireless router. From within my network, I can access my router (192.168.2.1), but how do I access my router from outside my network? I did use the address found in "whats my ip" site, but I did not access my router. Also, if I setup my network storage's FTP feature, what address do I use? I setup my router virtual (port21), what address to I use for external use and internal use?