http://www.open-electronics.org/arduino-ddns-dynamic-dns/
„This device captures the IP address of your network and it publish on site DynDNS.com. All without PC. It allow a remote access to your LAN even if the IP address of the connections changes.
For logistics reasons the provider can not assign a IP fixed for all users, so many users, especially private, work with a dynamic IP or public IP: in practice when they connect modem or router, to their connection is assigned an IP address that, when the connection will’be closed, can be used by other users. This makes impossible to contact a remote computer or device connected to a LAN Internet.“
„Open-electronics.org is the brainchild of a world leader in hobby electronics Futura Elettronica.
Our technicians will support you in designing circuits, writing firmware, making prototypes, choosing components, so as to help you project your idea.“
http://www.open-electronics.org/