Essay On Ipv6

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Recommended: Transition of ipv4 to ipv6 solutions and topics that are available for research

IPv6 has no fixed compatibility with IPv4. Therefore, from the beginning of the introducing IPv6, several transition techniques have been provided, The IPv6 transition mechanisms are a set of rules applied in hosts and routers, with some effective strategies for addressing and deployment, which are designed to transmit from IPv4 to IPv6 or vice versa with the least interferences. But some of these techniques had not been accepted by internet technical community due to the lack of adequate technical reliabilities. The most successful and widely used transition methods probably are Dual stack, Tunneling and Translation techniques. In the Dual stack technique, both IPv4 and IPv6 can perform concurrently on the same foundation. However, they both can use the same router but not all of the IPV4 policies are supported by IPv6 and in these cases other techniques can be used (Jayasekara et al, 2012). One of these techniques is tunneling, in this method IPv6 packets will be encapsulated in IPv4 packets to transfer across an IPv4 infrastructure. Furthermore, it can be said that several different tunneling technologies have been developed to enable IPv6 connectivity across an IPv4 network and vice versa, generally they have been classified as configured or automatic (Rooney, 2011)In automatic tunnels no pre-configuration is needed and the destination address will be calculated automatically from the IPv6 next-hop address of the IPv6 route, while in configured techniques the end-point hosts will require to configure their IPv4 addresses before the communications through some other techniques such as DHCP, manual configuration...etc. (Loshin, 1999). Another popular technique is translation, in this approach a special method will be provided to...

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...elp ISPs to overcome the situation but they need to find some other final solutions. The other groups are IANA and RIRs in terms of losing the control over the IP address allocations. Considering the fact that IPv4 depletion has been started over two decades ago, this paper has tried to investigate some of the reasons behind the internet survivals despite the significant incensement of the numbers of new connected devices such as smart phones. It can be said that using NAT technique or transferring the spare IPv4 address between different regions are some of the effective reasons of internet survival in the past few years. Finally, it can be concluded that IPv4 will continue to be existed as the basics of the internet for a limited time, but the new features and benefits of IPv6 will make it more reliable and it will become the mainstream of the internet ultimately.

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