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IPv4 against IPv6
IPv4 and IPv6, simply, are versions of IP addresses. IP stands for Internet Protocol; an IP address is a numerical label given to each and every device that can communicate in a computer network that uses IP.
There are no longer any internet addresses available via IPv4 technology. Its successor is IPv6, a system that will offer both simplicity to address assignments and network security features, as well as significantly more addresses. IPv4 uses 32-bit numbers, whereas IPv6 uses 128 bits for the address, allowing a far greater range of numbers, thus available addresses. The internet is expanding and there must be available addresses for users of the internet to use.
To be able to make a comparison, one must first understand what the two types of IP versions are, and what they are able to do.
IPv4
IPv4, Internet Protocol version 4, is the technology used to connect devices to the web. It has been in use since 1978. The 32-bit address technically allows 2^32 possible unique addresses, with some of those addresses being reserved for numerous reasons. Each time a device connects to the internet, it is assigned an IP address. An explosive growth of the commercial internet, and the increaser of IP-enabled devices, has finally exhausted the address space.
IPv6
IPv6, Internet Protocol version 6, functions similarly to its predecessor, however, it will use 128-bits addresses (2^128). As the internet has expanded far quicker than what was ever imaginable, it is important to make it future(ish) proof. Although 2^128 is a far bigger number than 2^32, with more and more devices able to connect to the internet, and the fact no one is entirely sure what might be lying around the corner in web development technologies, it is...

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...uters – 2881 Cisco Router. They support VPN and have inbuilt firewall protection.
 Switches – 2960-24TT Cisco Switch. They are managed switches.
 Server – Dedicated computer that is responsible for running a business’s network.
 Printer and other peripherals – in order to have a full functioning and usable network.
Cables
There are many types of cables a business could use for its network. Different cables have their own benefits and drawbacks. The design will include:
 Category 5 Twisted Pair Network Cable – 100 Mbps with an Ethernet connection of eight twisted wires. Provides Internet connection, as well as voice support and video connections. It is fast, reliable and affordable. As shown in the designs, this Ethernet cable will be used within the training centres to connect devices up.
 Serial Communication Link (RS232) – These connect the routers together
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