6 Reasons Why You Should Need a Migration into IPV6 from IPV4

  • July 27th, 2016
  • By Amal S
  • Blog
  • The emergence of the internet has created a tremendous impact on business practices on both local and global markets. Not only in business but it has embraced companies across all industrial verticals. It has enhanced accuracy and efficiency in work performed by people irrespective of their profession, industry and need. The possibilities of the internet are infinite and wherever it is applied yielded a good deal of results.

    Internet protocol has created a platform of interoperability from where maximum benefits of the internet were drawn. It has created a large network effect. In fact, for business, the rate at which the suppliers, distributors, and customers use internet determines the possible benefits rather than the company’s own internet usage.

    IPv4, the current internet protocol version has crossed 30 years of time period. The expanding user base and increased number of IP-enabled devices created a need for an upgraded version. IPv6, the latest version, need to address all those concerns along with the growing needs of new devices such as IP-based services, cell phones, online gaming and so on. The size and range of devices connected to the internet are increased by IPV6 and thus a network effect is achieved. The need for the migration into IPv6 is discussed there.

    1. Larger IP address space.

    Every device or computer which has to be part of an internet network requires an IP address. IPV4 allows only 4 billion unique IP addresses, where the current need exceeds this. The reason behind this insufficiency is the explosion in the popularity of the internet. IPV6 resolved this issue by providing 128 bits which comprise of 3.4 x 1038 billion unique addresses. The difference can be understood by a simple demonstration. If the entire space of IPv4 is being contained in an iPod, then the IPv6 space will be equivalent to the size of the earth. IPV6 thus opens a huge scope to the users.

    2. Enables efficient routing

    Routing becomes more efficient and hierarchical with IPv6 as it reduces the size of routing tables. The prefixes of the ISP’s customer’s network are changed into a single prefix by IPv6. This single prefix is assigned to the IPv6 internet. Along with this, the fragmentation is handled by a source device in IPv6 networks rather than the router.

    3. End to end connectivity

    The appearance of peer to peer applications such as video conferencing, multiplayer online games and VIoP created a demand, for a better end to end connection. In such configurations, communication is possible among the networked computers without a central server. IPv4 meet such requirements through NAT. This challenge can be overcome by using IPv6 with its large address space. Peer to peer applications works effectively and efficiently with IPv6.

    4. Facilitates directed data flows

    Instead of broadcast, IPv6 supports multicast. In multicast, bandwidth-intensive packets can be sent to multiple locations simultaneously. It avoids the need to process broadcast packets for a long time. The new field in the IPv6 header named Flow Label can identify whether the packets belongs to same flow or not.

    5. Administration easiness.

    IPv4 faces certain challenges during the network renumbering. Renumbering is necessary when a network needs to be expanded or merged or when the service providers are changed. So with IPv4 the task such as network renumbering and assigning of new address schemes need to do manually, whereas, with IPv6 this can be achieved automatically. Smoother switchovers and mergers were possible, without manual configuration of each host and router, using IPv6.

    6. Better Security

    As IPv4 is an end to end model, security is provided at the end nodes. It is not sufficient to meet the internet attacks such as malicious code distribution, Man-in-the-middle attacks, Denial of Service attacks and Reconnaissance attacks. When IPv4 is changed into IPv6, it almost improved the security feature. IPSec is the protocol which helps IPv6 to dominate IPv4 in terms of security. Authentication Header (AH), Encapsulating Security Payload (ESP) and Internet Key Exchange (IKE) are the protocols which are in IPSec that facilitates secure data communication and key exchange. Along with ensuring an end to end security mechanisms IPv6 eliminate the situation where applications themselves to have integrated support to meet security requirements.

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