Distributed Denials of Service (DDoS) attacks have become the daunting problem for businesses, system administrators and computer system users. Prevention and detection of a DDoS attack is a major research topic for researchers throughout the world. As new remedies are developed to prevent or mitigate DDoS attacks, invaders are continually evolving new methods to circumvent these new procedures. In this paper, we describe various DDoS attack mechanisms, categories, scope of DDoS attacks and their existing countermeasures. In response, we propose to introduce DDoS resistant Augmented Split-protocol (ASp). The migratory nature and role changeover ability of servers in Split-protocol architecture will avoid bottleneck at the server side. It also offers the unique ability to avoid server saturation and compromise from DDoS attacks. The goal of this paper is to present the concept and performance of (ASp) as a defensive tool against DDoS attacks.