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IPv6 Ready For A Spin
ibjhb writes: "Sprint and WorldCom are itching to launch the IPv6. This will provided us with the 'zillions' of extra addresses not provided by the current IPv4. There's other capabilities, including increased sercurity. ZDNet carries the story ..." Seems like we've been talking about IPv6 for as long as I've been using IPv4.
Some OS vendors and hardware manufacturers have been delaying IPV6 support for too long.
However even MS now runs with IPV6 if neaded. Cisco, IBM Sun all have support. Linux of course has had it since 2.0.x
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I am actually doing a report on this and found some really good articles and other tidbits at the following:
- Paper.html#CH2
5 6 addresses.
http://playground.sun.com/pub/ipng/html/INET-IPng
http://www.6bone.net/misc/case-for-ipv6.html
As far as compatibility goes, they (Internet Engineering Task Force (IETF)) have really worked hard on making a solid set of standards for this. The Sun.com resource I posted goes into pretty good detail on how this will all come together.
Before reading this article, I was totally under the impression that the ONLY need to go to IPv6 was due to lack of IPv4 addresses but that is not the case at all. IPv6 has a ton of nifty add-ons as far as the extension headers and the size of this new header is really only about twice the size of the IPv4 header. The new extension header includes:
Routing - This is considered Extended Routing which is based somewhat on the IPV4 source routing steps.
Fragmentation- This will allow headers to be fragmented and be able to reassemble itself back together.
Authentication- This will include integrity and authentication checks to enable better security over the IPV4 standard.
Encapsulation- This also deals with security and enables the packet to be kept Confidential.
Hop-by-Hop Option- this will allow hop-by-hop processing.
Destination Options- Optional information that will be examined by the destination node.
Also some cool facts:
The issue of the number of addresses availible for IPv6 works out to be around:
340,282,366,920,938,463,463,374,607,431,768,211,4
And this breaks down to about 1,500 IP addresses for each square meter on the surface of Earth and that an estimated fifteen percent of the address space for IPv6 would be used in the initial switchover from the old standard to the new standard.
-Gregg
------------------------------------ Step into my Office... WhY? Cuz your %$#$ing Fired...
while i don't have the code in front of me, i have looked at it. ipv6 is REALLY fscking cool.
::192.168.221.12 ( note: this is off the top of my head so don't expect it to be syntactically accurate ;-)
The designers understood the inherent need for backwards compatibility and so it was there from the start. (you can check one of the older issues of 2600 for the code - as well as everywhere online) - for your comfort. ipv6 is fully backwards compatible with ipv4 - i believe an ipv4 addy would look something like 0:0:0:0:192.168.221.12 - you get the picture. In addition, colons can be substituted in the place of zeroes...something like
There are basically 2 basic things to remember with ipv6. 1) It's hex - so good luck remembering your subnetting tables, etc. hehe 2) The transition from 4 to 6 can be as quick or as gradual as you need. - check your local linux kernel as well...there's already ipv6 code living in it.
FluX
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Any kid who grew up in the '70s can tell you that 7734 is the word "HELL" upside-down on a calculator. :)
#naabhaprzrag, #sverubfr-000, #agi-fcbafberq, negvpyr[pynff*=' negvpyr-ary-'] { qvfcynl: abar !vzcbegnag; }
And you don't even have to wait for your ISP to support it. Just turn on 6to4, and with one IPv4 address you can get quite a few IPv6 subnets (each of which contains 2^64 addresses).
Windows already supports 6to4, BSD probably does, and I don't know about Linux.
FreeBSD's 4.0-RELEASE branch supports IPv6. If you're interested in getting your own IPv6 Internet address and being connected to Internet6, the Kame project is what you're looking for.