Study and implementation of address translation mechanisms IPv4 to IPv6 and realisation of IPv6 routing table in VLSI

Abstract

IPv6 is a new version of the internetworking protocol designed to address the shortcomings of the current standard IPv4 The address space is limited to only 32 bits in IPv4 whereas IPv6 has 128 bits address in addition to mobility constraint and network layer security The main problem is that IPv4 and IPv6 are not directly compatible So programs and systems designed newlineto one standard cannot communicate with those designed to the other This work presents a comprehensive explanation of the various transition mechanisms and brings about the prospects of an Address Translation Technique and a Tunnel Broker Mechanism A solution for newlinetransition mechanism which includes conversion of IPv4 to IPv6 and vice versa and a mechanism for an efficient router design is proposed With focus to a longest prefix matching lookup algorithm it uses a small amount of memory newline