Welcome to the first free video from ITFreeTraining’s course on IPv6. This course will take you
through everything you will need to know for IPv6. If you find any topics missing, please
let us know and we will look at adding them.
In this course, I will start by looking at IPv6 addresses. They may look complicated
at first; however, you will quickly learn how to tell them apart just by looking at
them. Being able to identify an IPv6 address will also allow you to determine how it will
be used.
Next I will look at IPv6 subnetting. Subnetting in IPv6 has completely changed since Subnetting
in IPv4. In some ways it is easier, in other ways harder, but once you learn how to do
it, you will be able to achieve some great results.
After this, I will look at transition protocols. These protocols provide a bridge between networks
running different versions of the IP protocol.
To end the course, I will look at what you would need to do in order to have an IPv6
only network. As we will see, the deployment of IPv6 has been very slow. However, it is
good to consider what needs to be done when it comes time to stop using the IPv4 protocol,
however far away that day is.
To start this course off, I will first have a quick look at the history of the internet
protocol. The internet protocol is what connects all our computers and devices across the world.
This common protocol is what allows different operating systems and devices to communicate
with each other.
The fourth version of the internet protocol was developed in the early 80’s. There were
other versions before this. However, they were considered experimental and never commercially
deployed. You may also see IPv4 referred to as TCP/IP. The internet protocol is made up
of many different protocols. TCP or Transmission Control Protocol is one of the major protocols
used in the internet protocol. Thus, TCP was used in the name. Over time, the TCP has been
dropped and the collection of protocols is just referred to as IPv4 or IPv6 or just the
internet protocol.
Since it was first deployed, IPv4 has become very popular and has been much improved and
expanded. The reasons for this was due to increased popularity. Now days everyone is
connected to the internet, and with the advent of cloud based services, the need for addresses
continues to expand.
In 2011 IPv4 addresses started to run out. This is the major reason why a new protocol
was needed to be deployed. The protocol to replace IPv4 was IPv6. There was a version
5 of the internet protocol; however, this protocol was experimental only and never got
deployed. The main difference between IPv4 and IPv6 is that IPv4 uses 32 bits addresses
while IPv6 uses 128-bit addresses. In later videos I will have a closer look at how this
makes a difference to the number of devices the internet can support, but without giving
it away, there are so many addresses in IPv6 that we should never run out.
The deployment of the IPv6 protocol started in the late 90’s. Today, it is estimated
that over 10% of the internet is using the IPv6 protocol. Deployment and adoption of
IPv6 has been slow. In this course I will look at why this has been the case and the
current state of deployment on the internet.
Well, that covers it for this video, I hope to see you in the other videos on IPv6. And
remember, if we miss any topics on IPv6 that you would like to see, feel free to let us
know in the comments or send us an email. Until the next video, I would like to thank
you for watching.