A Zeroconf Approach to Secure and Easy-to-Use Remote Access to Networked Appliances

In this paper, we propose a new approach to secure and easy-to-use remote access to networked appliances (NAs). Based on the proposed approach, we develop a system in which servers in an Internet service provider network and a residential gateway (RGW) in a home network play an important role, including secure communication. The system allows us to access NAs, using mobile phone and PC anytime and anywhere. Our emphasis is that the system is based on zeroconf protocols including UPnP, and only by connecting an NA to a RGW enables secure remote access. Another emphasis is deployability. A RGW that has been widely deployed in home networks and always operates for VoIP call serves the zeroconf protocols. Interoperability with both UPnP compliant and noncompliant NAs, together available in the marketplace, is also considered. We deployed the system and conducted a field trial in which approximately 1700 users took part in for four months. Empirical results in terms of the zeroconf protocols will be shown with future directions.