IPv6 coming with ADC into your computer

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Pietry
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IPv6 coming with ADC into your computer

Post by Pietry » 19 Apr 2008, 13:38

What is the IP? IP means Internet Protocol. It's the protocol that is the base for all Internet communication. IP does the network , routing part. Once you have a data link between more PCs , to transmit data you need a protocol that "knows" how to get from pc A to pc B. The IP uniquely identifies a computer in the internet by the IP address.
What is IPv4 ? The first version of IP with a mass-scale usage. The main thing to point out about this version is that the addresses are 32 bit sized. To write an IP we use the form x.x.x.x where x is a number between 0 and 255 . Why? because 32 bits = 4 bytes, and one byte is 0..255. Whats the downside of the IPv4 ? you can only have 2^32 addresses eg. a little above 4 billion. At the first glance that sounds large enough, but latest statistics are proving it wrong. The number of free IPv4 addresses i getting lower and lower.
What is IPv6 ? Improved IPv4. The main difference is that the address is 128 bits. That means 2^128 compared to 2^32. Doesn't sound much of a difference, but the number of addresses will be :
340,282,366,920,938,463,463,374,607,431,768,211,456
Wow, that's something.
To understand just how large that number is, recognize that the surface area of the earth is usually considered to be about 196,950,000 square miles.There are 5280*5280 square feet in a square mile, and 12*12 square inches in a square foot. Multiplying 196,950,000*5280*5280*12*12, we find that the approximate surface area of the earth is 790,653,726,720,000,000 square inches.
If you divide 340,282,366,920,938,463,463,374,607,431,768,211,456 by 790,653,726,720,000,000 (the approximate surface area of the earth in square inches) that implies you can assign over 3.7x10^21 addresses per square inch of the earth's surface. That should be enough addresses for most requirements, at least for the foreseeable future !
Allright, so what does this have to do with ADC ? ADC supports both IPv4 and IPv6 addresses. The protocol makes no distinction between them .
Currently, Windows Vista and all Linux distros support IPv6. As for geographical spreading, Japan is already almost full IPv6 functional.

Go ahead and try using IPv6 with ADC. I will do it as well soon enough.

[Reference: http://en.wikipedia.org/wiki/IP_address]
[Reference : http://cc.uoregon.edu/cnews/spring2001/whatsipv6.html]
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