ANALYSIS THE DUAL STACK, TUNNELING AND NAT PT USING GNS3 &JPERF BETWEEN IPV4&IPV6 NETWORKS

Abstract

Each node in the network needs an IP address to commute between hosts. The IPv4 address number in use so far is too restricted to even think of dealing with the new concerns of IP addresses ،Whereas, version 4 of the network addresses currently in use is too limited to handle new requests from IP addresses. Therefore, IPv6 is designed to provide sufficient address space for the current and future demand for the growth of the Internet, and for communication between networks whose addresses have been updated to IPv6 and networks with old IPv4 addresses, one of the three mechanisms must be used: Dual Stack, Tunneling, NAT-PT as it is impossible to communicate between networks IPv4. IPv6 without using these mechanisms. This paper aims to analyze the mechanisms of Dual Stack, Tunneling and NAT-PT performance during communication between IPv6 network and IPv4 network analyzed using GNS3 and JPerf in emulation system closer to the working reality than any previous studies. The three mechanisms Dual Stack, The Tunneling and NAT-PT were tested to assess the complexity, advantages and disadvantages of each method in terms of response time (latency), packet loss and throughput. Implementation work is carried out according to similar scenarios and the conclusion of this study is that the Dual Stack mechanism is the most popular and simplest path between IPv6 and IPv4 freely without developing systems. The Dual Stack is suitable for specialized internet organizations, corporate systems, and home clients. While the Tunneling mechanism is suitable for Internet service providers, corporate systems and servers, while NAT-PT faces the most noticeable rates of packet misfortune due to the late response time of the packet as NAT-PT gives the maximum inactivity, while the Dual Stack mechanism gives moderate Tunneling mechanism is less inactivity. As for the recommendations, the Tunneling Mechanism technology includes some security issues that IP Security IPSec can understand. This is why we recommend using Tunneling with IPSec for the purpose of security advancement during communication between IPv4 and IPv6.