International Journal of Engineering and Technology

The extensive growth of the Internet in the recent years has depleted all the IPv4 address space. It results in scarcity of the IPv4 addresses and leads to design of temporary techniques like NAT. IETF developed IPv6 to overcome this issue. IPv6 is more than 7.9×1028 times as many as IPv4. Again, it leads to a new issue of compatibility. IPv6 overcomes the problem of address scarcity but it is incompatible with IPv4 address. So machines configured with IPv4 and machines configured with IPv6 cannot communicate directly. This communication is mandatory because IPv6 cannot replace IPv4 rapidly. It takes time to convert completely from IPv4 infrastructure to IPv6 infrastructure. Until then, both should cooperate. Transition technologies developed to solve this incompatibility. One such technology is Transport Relay Translator. It is based on RFC-3142. A translator located in the transport layer called as transport relay translator. The relay is located somewhere between the communicating hosts and enables IPv6-only hosts to exchange traffic with IPv4-only hosts. A TRT, which runs on a dual-stack node, can use one protocol when communicating with the client and another protocol when communicating with the application server. This paper discusses the implementation of TRT and methods to solve the security issues caused due to this translation.