prejudice are Sorrentine ciro I have a router in 2901 and opened its doors with the ip command nat inside source static tcp correct address interface port dialer 1 door, but when I connect remotely with an application, and I put the address ip publico de 2901 router I connect the dVR, which is connected to the system, but my ip public address and static and dynamic ie changes, then I should create a domain name like I do ?? aspect your answers thanks.