Have you heard about IP, many people have said it's how computers are invaded. Well then. Every time a computer, tablet, various cell phones, laptops access the internet, they get an IP (Internet Protocol), which is a number that serves as your computer's identifier on the network.
An IP is formed by four hundreds, from 0 to 255. The first IP is 0.0.0.0 (or 000.000.000.000) up to 255.255.255.255. The fact is that they are limited.
But how many IPs exist in the IPv4 protocol?
In technical terms, we say there are 28.28.28.28, where 28 = 255
The total number of combinations would be 232 or 4,294,967,296
Almost 4.3 Billion possible IPs, however, many cannot be used, examples:
Broadcast: 255.255.255.255
Modem configuration: 192.168.x.x ; 10.1.x.x
Default: 0.0.0.0
Test or localhost address: 127.0.0.1
The possible IPs are divided into classes:
Class A: large international corporate networks
Class B: medium networks, e.g., university campuses
Class C: small and medium businesses
Class D: Used for sending packets to special addresses, e.g., router communication
Class E: Exclusive experimental use, such as indicators for group D.
In conclusion, the possible IPs are running out. Fixed IPs where each person would be entitled to a number are something that is disappearing due to low supply. A service that was once normal is now very expensive.
The anticipated solution is IPv6 (IP version 6), the new generation of IP, remembering that today we use IPv4.
What changes?
Practically everything we know is synthesized in this article.
The quantity of IPs will be so vast that each person, computer, cell phone, tablet, will be able to have their own IP. Providers, websites, and many older devices will also have to undergo changes.
The Windows, Linux, and Mac operating systems used in homes are already prepared, but internet providers are not!
IPv6 addresses are normally written as eight groups of 4 hexadecimal digits, for example:
1081:1dc8:65b3:08d3:1329:8a2e:0841:7001
Sequences of 0000 can be omitted.
Example: The following IP has a sequence of zeros, so it's possible to hide it,
1081:1dc8:65b3:0000:0000:000:0000:7001
Equal to: 1081:1dc8:65b3::7001
And the number of combinations:
IPv4 has about 4.3 Billion (4x109)
IPv6 will have 3.4x1038.
IPv4 = 4,294,967,296
IPv6 = 340,000,000,000,000,000,000,000,000,000,000,000,000
Controversy!!
The big controversy is that with such a large number of IPs, it will now be possible for each computer to have a record on the internet, a kind of identification. This helps in security against hacker attacks and viruses, but also calls our privacy into question.
Whoever controls an IP will be able to know exactly everything that happened with a machine, the sites visited, the passwords entered, the things written, everything!
For a world that speaks of freedom and the fight against censorship, it could be risky to put so much power into the hands of dictatorial governments.
Not to mention our governments, which with little power already have enormous scandals related to income tax declarations and bank statements being violated.
Perhaps tomorrow a ruler might ask a friend to access a colleague's account and find out if they are supporting him in the campaign or not.
To learn more about the implementation of the IPv6 protocol in Brazil, consult the references:
IPv6 is the new generation of the Internet Protocol. (Source www.ipv6.br/)
It has already been in use for some time. But now, its implementation must be accelerated. It is essential for the continuity of the Internet's growth and evolution.
Since the beginning of its commercial use, over a decade ago, IP address exhaustion has been predicted. These addresses are used to identify each computer on the network. Palliative actions have been taken since then, but even so, these addresses are expected to run out in Brazil sometime between 2012 and 2014.
IPv6 brings to the Internet an addressing space capable of supporting the network's growth indefinitely, or at least, in any future we can imagine so far. In addition to solving the space problem, the new protocol also presents advances in areas such as security, mobility, and performance.
On this website, we want to alert everyone to the need for IPv6 implementation. We will also try to provide tools that allow for a better understanding of the issue and actually assist in its implementation. Contributions are welcome and encouraged in this space. Some articles are written by the NIC.br team, but you can also write your own articles, present your case, or comment on existing articles!
The frequently asked questions organized by [[NIC.br]] help a lot to understand, take a look:
http://ipv6.br/IPV6/AjudaIPV6Usuario (For Users)
!! By visiting the [[ipv6.br]] website you can watch explanatory videos, very good!
