Achieving host mobility using DNS dynamic updating protocol

The domain name system (DNS) is a cornerstone for the Internet and the most globally deployed Internet service that provides user-friendly naming for Internet hosts. DNS is a distributed data base that allows convenient storing and retrieving of resource records. Recently an interesting feature was added to BIND implementation of the DNS system to support secure dynamic updates. In this paper, we use the DNS and its ability to support dynamic updates to propose a mobility solution that locates and tracks mobile hosts while they change there points of attachment (IP addresses) in the network. The main objectives of this paper is to study and re-evaluate the DNS system with respect to dynamic updating protocol and provide a performance study to determine the ability of the DNS to support mobility and real time services. The experimental results have shown that updating speeds (i.e. propagation of updates along the system) are fast enough for the DNS to provide real time services, and we can conclude that the conventional DNS system with the dynamic updating feature can be used in a macro mobility handling scheme.