New applications like VoIP and video conferencing are sensitive to network performance, therefore making the network capacity provide quality of service is increasingly important. IPv6 was developed to solve some of the problems of IPv4, such as QoS, security and the IPv4 addresses reduction. Current IP networks provide better traffic delivery effort providing partial guarantees in terms of Quality of Service. However, there are services, including voice, with strong requirements for delay and delay variation (jitter), which makes it