Security consideration of migration to IPv6 with NAT (Network Address Translation) methods

However, the idea of the IPv6 comes from 1990s, but motion towards IPv6 carries out slowly. IPv6 is used in some companies but it has not been used all over the world yet. As a result, these companies are like islands in IPv4 oceans that it is needed to connect these islands with other islands & oceans. To connect these islands with each other, there are three methods: 1. Dual stack 2. NAT 3. Tunneling In this article; first of all, introduced attacks and then after analyzing these attacks. Vulnerability towards migration with NAT method comes out and finally security ways apply for each Vulnerabilities.