New binding update method in mobile IPv6

In the current mobile IP standard, the home agent (HA) of a mobile node (MN) is located in the home link. If a mobile node (MN) is moved away from the home link, it takes time for MN to make a registration and binding update at the home agent (HA). It also generates extra traffic in the Internet because the Binding Update should be refreshed after the lifetime expires. This paper proposes a new method for distributing multiple home agents (HAs) geographically. By applying this method, a mobile node (MN) can find a home agent (HA) which is nearest to it. It facilitates fast registration and short latency time. It also reduces the traffic of transaction. This technique is simple to apply. However, it is very effective. We demonstrate the capability of this method through working experiments.