IPv6: Your Questions Answered!

IPv6: Your Questions Answered!

What is an IP address and why do we need to change to IPv6? An IP address is the unique identifier for each computer on a network (or the internet). It’s like a postal address to send a letter through the mail, and computers use an IP address to send data to another device over a network. ‘IP’ stands for ‘Internet Protocol’ and forms part of the standard TCP/IP, or Transmission Control Protocol/Internet Protocol, that most broadband-enabled computers use to communicate. There are currently two standards for IP addresses: IPv4 and IPv6. The most common, and older, one of these two is IPv4 and you will have probably seen such an address in the form of X.X.X.X (e.g. IPv6 is the new standard that is being brought in to replace IPv4. IPv6 has been around for a number of years alr... »

How IPv6 Works and IPV6 Cheat Sheet

4D Data Centres Publishes its White Paper Explaining the New Internet Protocol We are on the brink of running out of internet protocol (IP) addresses because the present system, IPv4, has run out of unique number sequences to allocate after 30 years. It is being replaced by IPv6 and many IT directors are asking what’s involved and why should I upgrade? To help answer these questions and educate those interested, David Barker, the founder and technical director of 4D Data Centres, the eco-friendly, Tier 3 colocation and connectivity provider, has published a white paper called IPv6 – A Primer. The objectively written white paper looks at the evolution of the Internet Protocol version 4 (IPv4) into version 6 (IPv6), the next generation network protocol of the internet, and gives practi... »

When 4 becomes 6…

World IPv6 Day back in June 2011 showed us just how imminent the transition from IPv4 to IPv6 is. With every single business affected by the change, Nigel Titley, Easynet Transit and Peering Manager and chairman of 6:UK, looks at the considerations for IT managers wanting to ensure the change is smooth and successful. At present, the internet is mainly running using IP version 4 (IPv4), but this is soon to change as IPv4 address space is rapidly running out. There aren’t enough free addresses to meet demand beyond 2012 and as the protocol pushes closer and closer to full capacity, even that might be a stretch. As highlighted by World IPv6 Day in June, the move to the next generation protocol, IP version 6 is imminent, and, with the last remaining IPv4 addresses already allocated, comp... »