classic | mobile
Follow us on:
Follow us on Facebook  Share via Twitter  Share via LinkedIn
 

Search...
Hi-Tech Security Solutions Business Directory


IPv6: the future has arrived
August 2011, IT infrastructure

The advancement of Internet Protocol (IP) technology from the 32-bit IPv4 IP address version to that of IPv6 is a significant development in terms of global Internet use. South African users should understand the practicalities involved in preparing their networks for the changeover.

Service providers in this space also need to be aware of this development. The fact is that IPv6-based products are likely to have a longer service life than IPv4-based products.

The main reason for the current evolution from IPv4 to IPv6 is the severe depletion of the pool of unallocated IPv4 addresses—several regions of the world have already exhausted their allocation and remaining areas will soon follow suit within the next year or two.

This is serious because one of the critical differences between IPv4 and IPv6 is the number of available IP addresses. For example, there are 4,294,967,296 IPv4 addresses. In contrast, there are 340,282,366,920,938,463,463,374, 607,431,768,211,456 IPv6 addresses.

Creating a supply of more addresses is necessary given the continuing, explosive growth worldwide of Web portals, consumer devices such as smartphones, and Web applications, especially in Asia, the world’s growth leader and the biggest manufacturer of IPv6-enabled devices.

There are a number of important issues businesses will have to consider as they prepare for a networking environment that will soon be predominantly IPv6-based.

For example, some devices that use IPv4-only software cannot support IPv6 without an upgrade. And if the hardware is particularly old, even memory and software upgrades will not provide the full support for IPv6 features. Furthermore, since IPv6 addresses are larger, they require more time to process by both hardware and software.

On the other hand, the technical functioning of the Internet remains the same with both versions and it is likely that both versions will continue to operate simultaneously in networks within networks well into the future.

Efficiency, simplicity and improved security

Efficiency and simplicity, improved security, and support for new services. IPv6 makes routing more efficient and hierarchical because it allows the reduction of the size of routing tables. In addition, IPv6’s simplified packet header makes packet processing smoother and more efficient, for example, because there is no IP-level checksum - the checksum does not have to be recalculated at each router hop.

IPv6 is also more efficient dealing with network bandwidth as it supports multicast packets rather than broadcast packets.

The result is disinterested hosts no longer have to process broadcast packets for bandwidth –heavy packet flows like multimedia streams. Another significant improvement is that address auto-configuration was built into IPv6 from the ground floor, thus greatly simplifying network configuration.

IPv6 delivers fundamentally stronger security because of the incorporation of the IP security protocol suite into IPv6 architecture. Specifically, IPSec, which provides authentication, confidentiality, and data integrity, is baked into IPv6. Previously, IPv4 ICMP packets would often be blocked by corporate firewalls due to their potential to carry malware. Now with IPv6 deployed, ICMPv6, the implementation of the Internet Control Message Protocol for IPv6, may be permitted because IPSec can be applied to the ICMPv6 packets, thus creating a more secure network.

The new version also removes Network Address Tables (NATs), allowing more seamless peer-to-peer interactions and a multitude of new business opportunities in fields as diverse as gaming and entertainment, inventory control and supply chain management, travel, transportation, and more.

Services such as VoIP and Quality of Service (QoS) become more robust once true end-to-end connectivity at the IP layer is restored, and when IPv6 is combined with IPTV, the potential to revolutionize how content is delivered to consumers is within grasp.

Coupling mobile IPv6 with GPS promises a similar creation of new services and opportunities. With no address space issues, globally-unique IP addresses can be assigned to virtually any object, allowing a whole new range of services, many which will rely on machine-to-machine communications at their foundation.

Key facts

* An IP address is the unique number that identifies a network connected device (computer, router port, switch port, etc,) on the Internet (for example, 128.111.200.3).

* Network administrators and other knowledgeable computer users can easily change IP addresses to be able to communicate with existing networks or follow hardware, unlike MAC (or physical) addresses which cannot be changed under normal circumstances.

* The Internet, as it is currently deployed, uses a 32-bit version of IP addresses. These addresses are now known as IPv4 to distinguish them from next generation IP addresses, which use a 128-bit version of IP addresses, IPv6.

* IPv6 is officially defined as a suite of protocols and standards developed by the Internet Engineering Task Force (IETF).

* To date, most networks that use IPv6 support both IPv4 and IPv6 addresses on their networks. In fact, several recent studies indicate IPv6 traffic counts for less than 5% of all Internet traffic today.

For more information contact Paul Luff, country manager, +27 (0)83 450 8920, Paul.Luff@smc.com


  Share via Twitter   Share via LinkedIn      

Further reading:

  • Driving surveillance storage
    July 2017, WD South Africa, Seagate Technology, CCTV, Surveillance & Remote Monitoring, IT infrastructure
    Storage for surveillance is a necessity, but the right components can make all the difference in the total cost of ownership and reliability of the solution.
  • A capsule of storage
    July 2017, This Week's Editor's Pick, CCTV, Surveillance & Remote Monitoring, Integrated Solutions, IT infrastructure
    Capsule offers enterprise-class hyper-converged platforms designed specifically for the video surveillance market.
  • Universal control of power management systems
    July 2017, IT infrastructure, Security Services & Risk Management
    The Universal Controller is installed on a site and monitors power management systems 24x7, raising an alarm as soon as it detects something is out of the norm.
  • Toshiba Mobile Zero Client
    July 2017, This Week's Editor's Pick, IT infrastructure
    A clientless solution that empowers staff to work on the move, while following all corporate security regulations.
  • NVR storage for all projects
    July 2017, IT infrastructure, Products
    IndigoVision has a range of storage options for the surveillance industry available with Windows or Linux operating systems.
  • USB to Fast Ethernet fibre adaptor
    July 2017, Products, IT infrastructure
    Use the Scorpion-USB Fast Ethernet Fibre Adapter to create an EMI-secure data connection between a USB port on a PC, laptop or tablet and a 100Mbps Ethernet fibre port on a switch.
  • Cybersecurity at the edge
    July 2017, ComNet , Products, IT infrastructure
    The ComNet Port Guardian feature has the capability to physically disconnect a port if unauthorised access is detected.
  • Storage for surveillance considerations
    July 2017, Milestone Systems, CCTV, Surveillance & Remote Monitoring, IT infrastructure
    Milestone Systems highlights three things to consider when you buy storage for video business systems.
  • Taking the pain out of maintenance
    June 2017, Integrated Solutions, IT infrastructure
    Technologies that allow for predictive and preventative maintenance are not available to the mass market inside the security industry, but Naxian is changing this with its smart services offering.
  • Data governance and the security industry
    June 2017, Technews Publishing, Cyber Security, IT infrastructure, Security Services & Risk Management
    So how does all the talk about data governance and data protection impact the security industry? Or does it?
  • Specifying quality cables saves lives
    June 2017, Helukabel SA, IT infrastructure, Products
    When buying cables for mission-critical applications such as security, fire and CCTV video transmission, installers should make their cabling choice as if their own life depends on it.
  • Connecting social media
    June 2017, BT-SA, IT infrastructure
    BT-SA assists global social media giant with infrastructure build of South African head office.

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory (HSBD)

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual
         
    Mobile | Classic

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.