New Technologies :IPV6 network technology
Article by bradsimon
Many of us have heard of the proposed conversion of the standard Internet Protocol (IP) of the current IPv4 to a new standard. Few of us are really aware of all consequences. The effort led to the new standard has been the rapid development of Internet, because IPv6 is being introduced to overcome the restrictions of the old address space. At first glance, the implications for network administrators seem insignificant, because many of us really have our addresses distributed. Therefore, why should we be interested in IPv6?
IPv6 is much more than IPv4 with a couple of numbers at the end swallowed by the larger address space. This is a well-planned growth that will be required for IP as a protocol in the future. IPv6 is necessary to make amendments which take into account the traffic changes that will appear on IP networks globally. It is anticipated that this will have much more emphasis on real-time transactions such as Internet and intranets Metamorphosis for data networks of the old style, within the complex transmission systems carrying a huge data size.
IPv6 while attempting a long header address on an IP network from the point of view of the administration; configuring the network in the first place. Many network administrators do not like the changes as IPv6 because they have a horrible fear of falling chaotic happens after a few days or several weeks. If you have two sites with an IPv6 system, and your Internet connection between the two is only IPv4, then the 2 networks can still talk - are IPv6 packets through IPv4 connection. So there is little reason to be afraid of IPv6 and all the reasons they are planning changes now.
Another factor that directs the development of IPv6 is the need for enhanced encryption. Private communication via a public medium like the Internet requires encryption services that prevent the data sent can be viewed or modified during transit. There is a standard that provides security for IPv4 packets (known as Internet Protocol security or IPSec). However, this standard IPv4 is optional and proprietary solutions are prevalent.
A new direction
Many of us are familiar with the convention of IPv4 addresses, where addresses are written as 4 numbers between 0 and 255 separated by dots. For example, an address of a host address as 193.64.30.189. This is simply an accepted convention, as many users are more comfortable with decimal numbers to hexadecimal. However, when we extend the 32-bit addresses to 128 it starts to become unwieldy.
IPv6 simplifies the problem of 2 ways: first using hexadecimal numbers (base 16, 0 to F) instead of decimal, and second directions resulting compressed allowing the understanding of more zeros. So a typical address in long form would be something like: DEAD: BEEF: 0000:0000:0000:0073: FEED: F00D. Note that the gap now is not a colon.
Now after a typical IPv6 address could have a number of zeros, this address may be in a smaller version as DEAD: BEEF:: 73: FEED: F00D. Here the convention is that it has no zeros 4 digit groups may be at a trickle, as 0073 turns 73. A group of consecutive 16-bit numbers with a value of zero can be replaced with colons. This can only be replaced with empty chains colon. If there are only two null strings, only one can be compressed like this because if both were tablets would not be possible to determine how long is each, and so would have an ambiguous address.
You will also be intersted into a new bluetooh technology wibreeFinally, there is little change in the way of expressing an IPv6 address IPv4 address in IPv6 format. Saving the final conversion from base10 (decimal) and base 16 (hexadecimal), the Convention uses the old style dot notation for the last 32 bits of address and IP address appears as 0000:0000:0000: 0000:0000:0000:193.64.30.189, which we can make compressed form:: 193.64.30.189. Thus, despite the fact that we have quadrupled the address space, our old IP address can be expressed unambiguously in the new format by just adding 2 characters.
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