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Volume 8 Issue 1 - January 2017

  • 1. Scenarios in migration of networks from ipv4 to ipv6

    Authors : Smt. I Kullayamma, Sai Gururaju Goud G

    Pages : 97-105

    DOI : http://dx.doi.org/10.21172/1.81.013

    Keywords : Automatic tunnelingDual stack mechanismGNS3IPV4,IPV6 addressingISATAP tunnelingManual tunnelingNAT-PT mechanism.

    Abstract :

    With the unexpected growth, Internet has been facing for several years the exhaustion of available IPv4 addresses. To handle this unexpected condition, many solutions have been proposed for effective usage of the available addresses. Out of the proposed ones, the most popular solution is the Network Address Translation(NAT), in which the internal hosts are addressed with private IPv4 addresses are represented by NAT server in Internet. But it can't meet the growing need of IP addresses with the expansion of internet worldwide. Another solution to this problem is the use of Internet Protocol version 6(IPv6). This new version of IP has 128-bit addresses, while IPv4 is limited to 32-bit addresses. Apart from this IPv6 provides security,multi-casting, mobility, routing and network auto configuration some of which not available or improved compared to IPv4. Also majority of current operating systems support IPv6. It is not possible to move from IPv4 to IPv6 in a short period of time. Hence,during the transition,IPv4 and IPv6 will coexist. Many reasons extend the time of coexistence ,includes cost, support for IPv6, training of technical staff, upgradation of all ISPs etc. So IPv6 must be deployed gradually. Accordingly, we need to choose the transition mechanism.In this paper, we will present the available three mechanisms i.e., Dual stack mechanism, Tunneling and NAT-PT. Opting the mechanism depends on various conditions like cost ,support of IPv6 in both hosts, ISPs upgradation. Hence we discuss the optimal choice of mechanism according to the situation.We will present an analysis of all the available scenarios in transition.

    Citing this Journal Article :

    Smt. I Kullayamma, Sai Gururaju Goud G, "Scenarios in migration of networks from ipv4 to ipv6", Volume 8 Issue 1 - January 2017, 97-105

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