In the last few years tremendous development in the area of wireless and mobile network has been observed. Internet Engineering Task Force (IETF) proposed Mobile IPv6 to provide mobility in wireless networks. In Mobile IPv6, a Mobile Node directly updates its current location information to a Correspondent Node using a Route optimization technique. However, Route Optimization suffers from handover delays derived from the signaling message exchange. Handover latency in Mobile IPv6 plays an importantrole in the performance of a network scenario. It results in packet losses and severe End-to-End performance degradation. This paper analyzes and also compares some of the existing mechanismsthat are used for reducing handover latency and packet loss problem in the current mobile IPv6 Route Optimization environment and gives the overview of this area.

Mobile IPv6 is a very important part in the mobile computing for global Internet. However, there are some security threats in the current mobile IPv6 such as threats against binding update, Route Optimization and Tunneling. Therefore, strong security mechanism is required to provide authentication as well as address verification with better handover latency and efficient performance. This paper studies the security threats in the current mobile IPv6; meanwhile, summarize and analyze the existing Security Mechanism, infrastructures in the current mobile IPv6 and give the overview of this area.

In the last few years there is tremendous development in the area of wireless and mobile network has been observed. Internet Engineering Task Force (IETF) proposed Mobile IPv6 to provide mobility in wireless networks. In MIPv6, Every time when Mobile node (MN) moves, it sends binding update message to the home agent (HA) for telling its current location. However, in this case there may be chances of spoofing of a Binding update (BU)message by an attacker and pretending to be another mobile node. And then the attacker redirects all the traffic destined for the original node to another node or to itself. This paper analyzes and also compares some of the existing mechanisms that are used for reducing threats related to binding update messages in the current mobile IPv6 environment and gives the overview of this area.