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Wireless Networks Thread, IPv4 vs IPv6 in Technical; Just out of interest, what is the real difference between IPv4 and IPv6 and will we see any performance? Will ...
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    timbo343's Avatar
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    IPv4 vs IPv6

    Just out of interest, what is the real difference between IPv4 and IPv6 and will we see any performance?
    Will IPv6 ever take off?
    If so, whos moving over to it and when?

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    john's Avatar
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    Stop dreaming Tim, can you imagine that occurring with you know what in the equation

    Anyway, I was thinking of starting to look more at it with going to Windows 7 and 2008 R2 campus wide this summer (well we will have a couple of 2008 boxes due to a software support issue...) but it was something I was thinking about but obviously there will be things such as most Jet Direct cards in my HP Printers are not IPv6 enabled thus they will need replacing so more cost, so will probably just stick with IPv4 for now.

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    I think that the difference is that IPv4 has address of 32 bits and IPv6 has address of 128 bits

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    With IPv4 depletion not far off now there will come a point when devices on the internet are only able to use IPv6. We'll either need to start looking at some form of NAT or using a specialist 6-to-4 tunnel. Of course IPv6 ideally removes the need for NAT and private address space so the perfect solution is that we all start planning to make the move to IPv6. As John points out though it's quite possible you have devices that won't support it, and your upstream provider may not even support it yet!

    We're just going through a major network refresh and are planning IPv6 compatibility for everything and looking at rolling it out on a test basis this summer using a dual stack for a handful of machines.
    Last edited by Soulfish; 25th May 2010 at 10:16 PM. Reason: Need to learn to type!

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    StewartKnight's Avatar
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    IPv6 has security built in (think PS3), it will become the standard plus no real need for subnet masking... bring it on baby, just when (2012 anyone??)

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    Quote Originally Posted by timbo343 View Post
    Just out of interest, what is the real difference between IPv4 and IPv6 and will we see any performance?
    Will IPv6 ever take off?
    It will have to take off, there aren't going to be any further allocations left after next year...

    Anyway, in performance terms: you might see some small performance difference, because IPv6 was an opportunity to start with a completely clean slate. The regional registries have been allocated contiguous blocks, so routing tables are thousands of times simpler and therefore more efficient to propagate and to consult.

    If so, whos moving over to it and when?
    I already use it natively, internally and externally. Try doing an nslookup for heffalump.powdarrmonkey.net with v6 lookups enabled.

    Quote Originally Posted by BTCC_Fan View Post
    I think that the difference is that IPv4 has address of 32 bits and IPv6 has address of 128 bits
    That is one difference, yes. IPv6 - Wikipedia, the free encyclopedia
    Last edited by powdarrmonkey; 25th May 2010 at 10:26 PM.

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    User3204's Avatar
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    I have no plans to upgrade to IPv6... I've only got about 1000 devices wired up, if I squished hard, I could fit it into a /22 bit range.

    The ISPs that provide me with internet access on the other hand, should be planning to do so.

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    powdarrmonkey's Avatar
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    Quote Originally Posted by StewartKnight View Post
    it will become the standard plus no real need for subnet masking...
    No, subnet masks are just as important. A normal allocation is a /64 though, or 18446744073709551616 addresses. Plenty to go around even the biggest networks.

    bring it on baby, just when (2012 anyone??)
    Unfortunately I doubt it, there is not enough momentum

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    in schools where i have an 08 or 08 r2 server is it worth turning ipv6 on on the xp boxes? now until i get an ipv6 from the leas isp (who cant get vista/7 to work on their managed wfi yet so im not holding my breath) i was just going to leave it in stateless mode(i think thats the name) where they all generate thei own ipv6 address

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