A Novel Approach For Preventing Dos Attack In Duplicate Address Detection Of IPV6

IPv6 is the hottest version of the Internet Protocol (IP) that provides an identity and addressing scheme for computers on networks and routes traffic across the Internet. This protocol was introduced to resolve the addressing issues of the previous version. It also provides new services and features such as auto- configuring of the host. This aspect allows the host to configure themselves without any additional utilities. The design aspects of IPv6 have also brought some security issues. The important of them is Denial of service attack that occurs in DAD (Duplicate Address Detection) which does not allows the auto- configuration feature. The Mechanism like SeND (Secure Neighbor Discovery), SSAS (Simple Secure Addressing Scheme) are developed to solve this issues. The side effects of these mechanisms are its complex nature and deterioration of its performance. This paper reviews the moral weakness of these mechanisms and proposes a novel method, Safe Addressing Scheme (SAS), which addresses them.