Slashdot Mirror


IPv6 Transition to Cost US $75 Billion?

darthcamaro writes "There are alot of reasons why the US isn't moving as quickly as Japan and Europe in migrating to IPv6. One of those reasons is likely cost. An article on Internetnews.com cites an unreleased 'Dept. of Commerce report estimating it will take $25-$75 billion to pay for the transition.'"

88 of 462 comments (clear)

  1. $25-$75 billion by biocute · · Score: 5, Insightful

    $50B difference is huge, this goes to show nobody knows what's going on.

    I guess USA's high internet adoption and usage actually hinder its move.

    This reminds me of China's ability to build its new Shanghai rail based on the magnetic levitation system, while other well-established rail-using nations like Singapore may find it difficult to switch. Talk about right place right time.

    1. Re:$25-$75 billion by lgw · · Score: 4, Insightful

      Eventually though, all the IPv4-only equipment will reach the end of it's natural life, and be upgraded to IPv6-compatible equipment, and the IPv6 support won't cost anything extra. Unless you're upgrading early just to jump on IPv6, there rally no equipment cost at all. Sure, there's some manpower cost in learning how IPv6 works, but that's the nature of the industry. This reports looks like an excuse for someone to not adopt quickly.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    2. Re:$25-$75 billion by Anonymous Coward · · Score: 5, Insightful

      I guess USA's high internet adoption and usage actually hinder its move.

      But even higher internet adoption in Europe and Japan doesn't hinder their moves, most strange.

    3. Re:$25-$75 billion by metternich · · Score: 5, Funny

      $50 Billion here, $50 Billion there, pretty soon you're talking real money...

      --
      Facts do not cease to exist because they are ignored.
    4. Re:$25-$75 billion by tyagiUK · · Score: 3, Insightful

      "It's hard, very hard, to know exactly what hardware every company has, and more importantly, how that hardware is used."

      So why bother making an estimate?

      Either say nothing, or make a statement based on well-understood and well-researched facts.

      --
      Contribute to the online videogame encyclopedia: GamerWiki
    5. Re:$25-$75 billion by SatanicPuppy · · Score: 4, Interesting

      I don't know, I mean, where I work (and we have a metric ton of network hardware) transitioning to IP6, at least as far as dealing with the rest of the world, would be pretty easy.

      As far as the internal network goes it'd be a nightmare, but in that case, why switch internally at all? No real need to at this point, we could do the translation without too much trouble. Let the internal stay IP4 until all the software/hardware becomes ip6 compatible, THEN switch.

      Numbers like this are always pulled out of thin air. Sure it'd be a pain in the ass if we had to up and switch today, but it wouldn't be that bad to switch in 5 years or so if we mandated compatibility today.

      --
      ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
    6. Re:$25-$75 billion by mctk · · Score: 5, Funny
      (not that I claim to know what I'm talking about here, but it sounds right in theory at least)

      Ahh, the old slashdot EULA.

      --
      Paul Grosfield - the quicker picker upper.
    7. Re:$25-$75 billion by rm69990 · · Score: 2, Interesting

      As a Canadian, this rule doesn't fit. We have more land mass than the US, 10% of the population, cheaper/faster internet, and it is more reliable. For instance, where I live, the slowest Cable/DSL I can get is 3 MB/s, and it has gone down maybe 4 or 5 times in 2 years. The company sent out a technician, as we were the only ones in my area experiencing the problems, and it was faulty wiring in the house causing the problem. Since that was fixed, it hasn't gone down once. For $80 a month, we get phone with unlimited long distance (in the US and Canada), cable tv with a lot of extra channels and internet.

    8. Re:$25-$75 billion by Rimbo · · Score: 2, Insightful

      This reminds me of China's ability to build its new Shanghai rail based on the magnetic levitation system, while other well-established rail-using nations like Singapore may find it difficult to switch. Talk about right place right time.

      Well, I think you're right about the pre-existing infrastructure being a problem. Another problem you can face is that building something new ticks off the general population.

      Shanghai's maglev to Pudong Airport wasn't a walk in the park. The biggest thing is that they had to build the tracks using concrete instead of metal (I forget why, but I think it had to do with the fact that Pudong is basically a man-made island? or the cost of the metal? Crap, I forgot). The problem with concrete is that it doesn't expand and contract freely the way metal does. They had to develop an entirely new form of concrete for the rail as a result. Now note: This is not just your typical "new tech has to be developed" thing; trying to get concrete to have the properties of metal is really trying to get a zebra to change its stripes. We're talking, "Hi, would you please revolutionize the field of materials science for us?" Now while many vital details slip my mind (it was in a conversation a few years ago with my wife's uncle, who led the concrete development, and what little I remember was what my wife translated for me), "developing a new form of concrete to use instead of metal" is up there in degrees of difficulty along with "ditching existing infrastructure."

      More importantly, if you look at what China's done to Beijing for the Olympics, where all of the old neighborhoods and streets are being scrapped in favor of ten-lane streets and high-rise grids as far as the eye can see, you'll see that China has absolutely zero qualms about eliminating existing infrastructure to replace it with a different one. It's easier when you don't have an electorate to report to and don't have to worry about the people you're displacing voting you out of office.

      So I think your example is a better example of this than it is an example of pre-existing infrastructure being a problem.

      The USA has both of these problems, so it's always going to be the last to get major infrastructure improvements.

    9. Re:$25-$75 billion by TedCheshireAcad · · Score: 4, Funny

      7/10 people prefer to make estimates on things they know nothing about.

    10. Re:$25-$75 billion by Loconut1389 · · Score: 2, Funny

      more like: 3 to 10 people make estimates on things they know nothing about. :o)

    11. Re:$25-$75 billion by Anonymous Coward · · Score: 2, Insightful

      Eventually though, all the IPv4-only equipment will reach the end of it's natural life

      I'm sure it will. But a lot of network gear is really reliable. My company still has some 3com hubs that are more than 10 years old.

    12. Re:$25-$75 billion by Professor_UNIX · · Score: 5, Insightful
      But even higher internet adoption in Europe and Japan doesn't hinder their moves, most strange.

      Not really strange.. there's really no IPv4 address space crunch here in the USA. Most people have become accustomed to using NAT, but even if NAT hadn't taken off, the USA has a huge surplus of unused IPv4 address space compared to the allocations given to the rest of the world. Pull back some of the millions of addresses grandfathered to early adopting universities and government sites and you will have more than enough for the entire USA. Does GE really need 16 million addresses? Does the Army's Yuma Proving Grounds need 16 million addresses? How about HP? Do they need 16 million addresses? Force these kinds of groups to prove they are using that much address space, if not they should be forced to readdress their networks and give back all that unused classical A space so it can be subnetted into smaller CIDR blocks. Once you run out of that, start doing it with the old class B networks. Most companies can get by perfectly fine exposing only a handful of routable addresses on the Internet and NAT'ing the rest.

    13. Re:$25-$75 billion by appleLaserWriter · · Score: 3, Funny

      I would like to take this opportunity to announce that I am willing to move the US to IPv6 for $24 billion.

    14. Re:$25-$75 billion by JWSmythe · · Score: 3, Informative


          Actually, the current estimate on the war in Iraq is $350 billion. But hey, what's $135 billion dollars between friends. :)

          The estimated daily cost in late 2004 was $177M per day. Take a few months off of the war, and you have the cost of migration.

          There are many better ways to spend that cash though. Think schools, healthcare, infrastructure, and job training.

      --
      Serious? Seriousness is well above my pay grade.
    15. Re:$25-$75 billion by hazem · · Score: 2, Insightful

      That's all fine until the CFO says we need to cut costs now... because shareholders and the stock buying public don't understand NPV - they just want to know why you're spending more on infrastructure when the stock price is going down.

      It's stupid, but sadly, we are a stupid people, bound by our stupidity to make stupid decisions.

    16. Re:$25-$75 billion by jZnat · · Score: 2, Funny

      Damn Mexicans and their cheap infrastructure upgrades...

      --
      'Yes, firefox is indeed greater than women. Can women block pops up for you? No. Can Firefox show you naked women? Yes.'
    17. Re:$25-$75 billion by rob_squared · · Score: 3, Funny

      The other 4 are just bad at math.

      --
      I don't get it.
    18. Re:$25-$75 billion by Sathias · · Score: 2, Funny

      $50B difference is huge, this goes to show nobody knows what's going on.

      Or maybe the $25B is the actual cost, and the $75B is if they out-source it to Halliburton contractors ;)

      --
      Blessed are the 1337, for they shall pwn the earth.
    19. Re:$25-$75 billion by Fred_A · · Score: 4, Funny

      New new !
      3Com hubs now IPv6 compatible !
      Upgrade now !

      Don't be left behind with your old crappy IPv4 hubs, our new hubs are ready for the Internet of the future !

      Upgrade now for $99.95 !

      (hum)

      Yes, well, it would work with a lot of users)

      --

      May contain traces of nut.
      Made from the freshest electrons.
    20. Re:$25-$75 billion by jlnance · · Score: 2, Insightful
      This reports looks like an excuse for someone to not adopt quickly.


      People don't need an excuse not to adopt. They require a reason why continuing with the current approach is not going to work for them.
  2. Wrong angle by Anonymous Coward · · Score: 4, Insightful

    They should have focused on how it will *GROW* the economy by creating $75 Billion in new jobs and infrastructure.

    1. Re:Wrong angle by ackthpt · · Score: 3, Insightful
      They should have focused on how it will *GROW* the economy by creating $75 Billion in new jobs and infrastructure.

      Sorry, Charlie, but this administration couldn't give two bits for anything in silicon. It's all about petroleum, otherwise Michael Dell would be Secretary of Commerce.

      Whatever you think you believe about this crop of economic vandals being pro-business you can just forget it, like any small business which has been infinitely more screwed by the oil price maniupulation than any jump in minimum wage or healthcare premium.

      --

      A feeling of having made the same mistake before: Deja Foobar
    2. Re:Wrong angle by Headcase88 · · Score: 2, Funny

      And that closes the circle right back to silicon! Looks like the administration does care about electronics after all ;)

      --
      "When the atomic bomb goes off there's devastation...but when the atomic bong goes off there's celebraaaaation!"
    3. Re:Wrong angle by IamLarryboy · · Score: 3, Insightful

      Okay, I understand the desire to look for the bright side, but the economics in the parent are just plain wrong.

      If it takes $75B worth of resources, that is materials, production capacity, risk and labour, to switch to IPv6, that is $75B worth of resources that cannot be spent on other productive uses. It is not the case that suddenly $75B worth of income and infrastructure is going to appear out of thin air. No, resources must be diverted from other uses. This is what is know as opportunity cost.

      This is the same issue that stupid newsmen were spouting off on after the New Orleans disaster. An entire city was wiped out yet they went on about how good it would be for the economy. WTF? An entire city worth of wealth was erased and this is somehow a good thing? Ya, some people will benefit, such as construction workers and sawmills. However, this is more than offset by the losses to just about everyone else. It will be offset to the tune of about 1 large city.

      Think about it. If you could create wealth in this way you could simply bash your way to Billions with a baseball bat. Wealth comes from two sources. First, from taking existing wealth and converting it into more valuable wealth (production). Second, from re-arranging existing wealth from less valuable uses to more valuable uses (trade).

      Now, it very well may be that the $75B investment is worth the cost. In fact, I believe this to be the case. I bet that over the years the investment will pay for itself many times over. However, the $75B it is going to cost is most certainly a cost and infact not a credit.

  3. Yee-Ha! by ackthpt · · Score: 2, Interesting

    A mini-tech boom! Cisco will profit an anyone who makes switches which allow your old IPv4 stuff to communicate will make a fortune.

    i'm applying for a patent on decaffeinated, low-fat, sodium free, left-handed wholly organic ipv6 veeblefetzers, axolotls and potrzebies

    --

    A feeling of having made the same mistake before: Deja Foobar
  4. That's nothing... by Aqua+OS+X · · Score: 5, Funny

    That's nothing.

    With all the money we've saved from taxes well be able to... ohh wait, nevermind.

    --
    "Things are more moderner than before- bigger, and yet smaller- it's computers-- San Dimas High School football RULES!"
  5. Uh... by Anonymous Coward · · Score: 5, Insightful

    How much money would be spent on upgrading routers and internet infrastructure anyway? I can claim that over the next 10 years internet infrastructure will cost over $100B, regardless of whether or not it's IPv6 compatable or not.

  6. What's needed? by Ironsides · · Score: 2, Insightful

    Since this changeover is going to require something new, does anyone have a list or know of a place that talks about exactly what needs to be done to switch over to IPv6? Like routing tables, software upgrades/changes, hardware upgrades, network changeovers and what else?

    --
    Fly me to the moon Let me sing among those stars Let me see what spring is like On jupiter and mars
    1. Re:What's needed? by Michael+Hunt · · Score: 5, Informative

      You don't seem to know what you're talking about.

      Any ISP with 100k customers (or even one with an order of magnitude less) is going to be assigned a /32 (or shorter) prefix, which is guaranteed to be globally portable.

      The basic structure of an IPv6 address is:
      0-31 Top-level network bits
      32-47 16 bits for customer allocations (/48)
      48-63 Customers' subnetworks
      64-127 Local subnet addressing (EUI64)

      If you've been allocated a /48 by your ISP, sure, you'll need to renumber every time you change ISPs. If you've been allocated a /32 or shorter prefix by a RIR, then you won't.

      BGP4+ Routing tables will also be correspondingly smaller, because they'll only contain a number of /32 prefixes (a much smaller number than the current IPv4 soup, which includes prefixes as long as /24 for legacy reasons.)

      I humbly submit that you do more research in future.

    2. Re:What's needed? by anticypher · · Score: 4, Interesting

      The original report was by Juniper and presented to a group working on upgrading the U.S. government and military networks to be dual-stacked for both v4 and v6. Since Juniper sells very expensive equipment, they want to lessen the sticker shock for all their government buyers.

      There are a lot (two words) of places to look for IPv6 dual stacking.

      Start with the big IPv6 hardware equipment vendors, like Cisco, Juniper, and Foundry. Look at the (relatively) free implementations that exist today, like BSDs, OpenBGPd, Mac OS-X, some linux distributions, Windoze with a patch (and soon to be included by default in Vista). That will give you some background in what to do, but since you asked such a wide open question there isn't really any one place to point you. Its almost as if you asked "I need to set up the internet, is there someplace I can learn everything about it?"

      Try subscribing to some IPv6 mailing lists, or at least browsing their archives. Lots to learn there, some technical, much political. Most of the political is from clueless noobs who have just barely caught on how to configure their home NAT router, and are terrified they will now have to spend another decade learning something slightly new. The real engineers consider the migration to a dual-stacked internet as just another excercise they have to do as with every new technology.

      I will admit, there is a learning curve. I have over 20 years of IPv4 experience, and it still took me a while to pick up some of the subtleties of v6. BGP peerings takes some extra work, but then again, it took years to learn all I know about v4 BGP peerings.

      I would love to see some of the major internet sites start serving up content via IPv6. Slashdot, which, unfortunately, no longer seems to have anyone technically competent running it, would be a huge boost to IPv6 if they started serving up AAAA records in DNS. Add extra karma during the first few months of early adopters who can connect with IPv6, and there would be a rush of competent geeks setting up IPv6 tunnels to their home networks and pressuring their upstream ISPs to support it natively.

      There is a huge amount of work to be done before the internet can be dual stacked. Apache2 supports IPv6 addresses, but PHP, MySQL, Perl and a host of other apps/languages/scripts choke or die when presented with IPv6. The IETF working group moved IPv6 from draft to standard recently, and now we just have to wait until it works its way into more and more new devices. I'm waiting on Cisco to include IPv6 standard in all versions of IOS, just like IPv4 is now.

      the AC

      --
      Hemos is like...sci-fi fans;he thinks technology is cool, but he hasn't bothered to understand the science it's based on
    3. Re:What's needed? by Danathar · · Score: 4, Interesting

      This is ONLY true if blocks of address space are not dolled out in IPv4 fashion. The problem is that in the government and commercial world multi-homing to several ISP's for redundancy is the norm in IPv4. In an IPv6 envrionment there STILL is not a workable solution to having just about everybody subnetted.

      I predict (and serveral people involved in IPv6 deployment on Internet2) that we'll end up giving /32's to MANY organizations because they'll want to connect to more than one ISP. Unless somebody comes up with a reasonable way for an organization with a /48 to be connected to two different ISP's (like my agency is under v4) for reduncancy.

    4. Re:What's needed? by Solosoft · · Score: 2, Informative

      Windows with a patch ?

      To enable ipv6 on a Windows XP machine goto run and type "ipv6 install" wait a few minutes and boom. If you got somthing like radvd running it will fetch the info it needs and assign the address.

      Cause im running ipv6 on my WRT54Gs v4 running radvd and all my windows machines picked it up right away after typing that command. I think Windows 2000 needs a patch to get it to work but im sure by the time ipv6 becomes standard Windows 2000 will be unsupported.

      Please don't be spitting out shit ... thanks

    5. Re:What's needed? by Feyr · · Score: 2, Interesting

      everytime there's a discussion about ipv6 i bring up this point, and i get people like you that didn't read the policy giving the exact same answer.

      see http://www.arin.net/policy/nrpm.html section ipv6 6.5.1.1

      To qualify for an initial allocation of IPv6 address space, an organization must:
      a) be an LIR; --- most ISP aren't
      b) not be an end site; --- large hosting company ? i'm sure they'll appreciate having to renumber
      c) plan to provide IPv6 connectivity to organizations to which it will assign /48s, by advertising that connectivity through its single aggregated address allocation; and
      d) be an existing, known ISP in the ARIN region or have a plan for making at least 200 /48 assignments to other organizations within five years. ---- yeah right, 200 /48 ? so that's what, 50-100k customers? depending on your business model

    6. Re:What's needed? by Tony+Hoyle · · Score: 2, Interesting

      You nicely stepped over the complexity there.

      You had to custom modify a WRT54G with a working ipv6 stack and radvd, then sign up with a tunnel broker (precious few of these left now - most of the ones from a few years ago died), and manually edit scripts to connect to that tunnel broker.

      Or you could have tried to go the 192.88.99.1 route, only to find that most ISPs don't route it any more.

      Then you've got an ipv6 connection. woo. With a probable ~300ms first hop and nowhere to go because there is *zero* commercial deployment. Enjoy your address space.

  7. The most important question... by rbarreira · · Score: 2, Insightful

    Is it really worth it?

    --

    The AACS key is NOT 0xF606EEFD628B1CA427BEA93A9CA9773F
  8. Outrageous by Anonymous Coward · · Score: 4, Funny

    Twenty-five to Seventy-five Billion! That's maddness! Why ... we'd have to cancel the war in Iraq for a month or two to pay for that!

    K

  9. Sounds like the amount that could be saved... by ShatteredDream · · Score: 5, Insightful

    If we eliminated most of the fraud, waste and abuse in the government. With the Department of Education not being able to account for a majority of its budget, the Defense Department losing over $12B of tax dollars in Iraq and all of the pork that goes through Congress, I can't help but think that if the Congress didn't have the power to spend money on "internal improvements," we'd not be in this problem today.

    The governments in this country waste so damn much of our GDP on pure bullshit that if we actually had fiscal responsibility, this would be non-issue. We have a GDP of $11T, does anyone actually think that if the costs associated with compliance, regulation, tax payments, etc. were much easier that corporate America would be bitching about this transition? It'd be just a drop in the bucket.

  10. What is the basis for the cost? by dotslashdot · · Score: 5, Interesting

    The FA makes no mention of WHY it will cost that much. I don't know anything about IP6, but $75b makes it seem like they plan on rewiring the whole government. The article cites that "one speaker" estimated the cost between $25-$75b. Is the speaker trying to just jack up the price? Perhaps someone can explain what is involved so we can decide if the prices quoted are reasonable.

    1. Re:What is the basis for the cost? by tuomoks · · Score: 2, Informative

      A very good question (IMHO) and I know "something" about IPv6. Now, of course, if that estimate is like many other I have seen in government/corporation contarcs, like $1 million modem programs, $2 million for simple SQL queries, and so on, it may even be a low estimate. I have real problems with companies billing millions of standard UDP/TCP/IP, encryption, compress, etc interfaces. But what do I know - I just write those as slow and as complicated as I'm told. IPv6 is not "rocket sciense" but a rather well defined protocoll which, amazingly, works with IPv4.

    2. Re:What is the basis for the cost? by g-san · · Score: 2, Funny

      This actually goes back to a research project at DARPA last year. They had two networks, and IPv6 network and IPv4, and a team of network admins to work on each one. Turns out the IPv6 team was slower, because of the length of IPv6 addresses. Apparently it took that much longer to write down an IPv6 address, or read it off to someone over a phone, or key into a Blackberry. People thinking they could remember an IPv6 address while walking across the room also introduced several errors into the configuration on the IPv6 network. This would of course result in less work done per manhour and therefore increases the cost of a unit of work given the same amount of workers. A quote from an Admin on the IPv6 network:

      "OMFG, for the last time, did you say two zero zero one colon dee five six see colon zero one one two colon five ef bee three colon nine zero zero zero colon colon one colon nine... cause I still can't ping it! Oh wait, typo! No, it's still not working... DAMN!"

  11. Sounds Like BSA Estimate by faqmaster · · Score: 4, Funny

    Who did that estimate? The BSA?

    --
    Are you...Are you some kind of genius?
    No, ma'am, I'm just a regular Slashdot reader.
    1. Re:Sounds Like BSA Estimate by NevDull · · Score: 2, Informative

      Maybe they're calculating it based upon "router equivalents", in the same way that RIAA calculates "burner equivalents".

  12. And the contract goes to... by PetoskeyGuy · · Score: 4, Funny

    Haliburton's new IPv6 division.

  13. The reliability of the source? by dada21 · · Score: 2, Insightful

    The Department of Commerce does not have a very good track record of forecasting market trends. I think this report is especially callous as investors might heed this "warning" and invest in IPv6 companies prematurely.

    _No one_ knows IPv6's cost. The market will see a few early adopters, then a steadily growing medium-sized business buy-in, followed by a boom of users or a bust due to newer technologies.

    For a government agency to print these assumptions makes me think they either needed some media spotlight or the researchers wanted their stocks to go up.

  14. but by Anonymous Coward · · Score: 2, Insightful

    how much of that is money that would have been spent anyway? Upgrading routers and stuff when it's time came around to be replaced - it may take some time, but if all the new equipment bought is IPv6 compatable then it will only actually take the flick of a switch to make the transition - it just may take more time until the complete transition is possible.

  15. Re:A LOT is TWO WORDS by Anonymous Coward · · Score: 3, Funny

    Agreed; alot of people make that mistake.

  16. IPv6 is a mess by Marrow · · Score: 3, Informative

    http://cr.yp.to/djbdns/ipv6mess.html

    Do we really have to throw this much money into the volcano?

    1. Re:IPv6 is a mess by sxpert · · Score: 2, Insightful

      IPv6 users will only be able to use "passive" protocols (say goodbye to DCC transfers on IRC, and lots of multiplayer games)

      Bullshit.
      on the contrary, IPv6 will allow multiple people behind that firewall to have dcc transfers, and do ftp much more easily. no more ftp or irc modules required to nat shit around, no more H323 gateways and gatekeepers needed because person A in his 192.168.0.foo network can't connect directly to your 192.168.0.foo machine on your own network (duh, to his H323 client, this would be like connecting to localhost)

      Lastly, who wants to remember an IP address like 2001:0db8:85a3:08d3:1319:8a2e:0370:7334/64

      guess you ultimately don't know jack about what you think you're talking about.
      hey, dude, that's what DNS has been designed for.
      see, if your computing skills were about half of what your BS-spouting skills are, you would have noticed by now that the docs refer to AAAA records to store that info for you. besides, the router affecting the IPv6 addresses with dhcp would also serve as your dns server, and store that info. Whenever your box asks it's IPv6 address to the router in question, it says

      machine1: hello, I'm foo.bar.baz, what's my IP ?
      router: ok, foo, your ip is 2001:0db8:85a3:08d3:1319:8a2e:0370:7334/64

      now, machine2 wants to communicate with machine1

      machine2: hello, it seems you are the manager for bar.baz, what's the address of foo ?
      router: erh, lemme look... there it is. foo is 2001:0db8:85a3:08d3:1319:8a2e:0370:7334/64

      now, can you explain where you see a human being remembering the address in question ?

    2. Re:IPv6 is a mess by n0dalus · · Score: 2, Insightful

      on the contrary, IPv6 will allow multiple people behind that firewall to have dcc transfers, and do ftp much more easily. no more ftp or irc modules required to nat shit around...

      The whole point of a firewall is to drop packets that could be malicious. Just because all the computers on the network have their own public addresses doesn't mean you should pass along everything that gets sent to it.

      [regarding long IPv6 addresses] now, can you explain where you see a human being remembering the address in question ?

      If you've ever tried to troubleshoot DNS problems you would know how important it is to know important IPs. AAAA records just aren't helpful when the DNS server is broken.

  17. What's the cost by QuietLagoon · · Score: 4, Insightful

    not to make the transition?

  18. Holy Address Space, Batman! by DanielMarkham · · Score: 3, Insightful

    That's a lot of bucks, but studies like these are easy to take in isolation instead of looking at the big picture.

    The U.S. economy is what? About 12 Trillion dollars a year? In 1999 the internet economy was closing in on 150 Billion, by now it has to be through the roof.

    Poor software? It costs over 200 Billion a year (sorry no link). You have to put these numbers in perspective. When you are dealing with 300 million folks or so, and the world's largest free market, any kind of estimate for anything is going to be big. The common cold costs over $30 Billion a year.

    Just keep it all in perspective. The internet economy will blow right through this obstacle if it gets in the way of sales



    My Blog
  19. Umm... by kadathseeker · · Score: 3, Funny

    Just phase out IPv4. Have all new equipment/software include IPv6 by default. Time for "Best of Bash.org":

    Some cool info: Tibeten monks, after twenty years or so of practise in the Himalaya, control their brain stem - they can control their heart beat, blood pressure etc.
    After thirty years they can connect to the internet purely by meditation, setting TCP stacks in their neurons and stuff.
    Right now I am chatting with a monk who is sitting naked in an ice storm on his towel, his only possesion.
    He's using ipv6.

    --
    The 'Net is a waste of time, and that's exactly what's right about it. - William Gibson
  20. Cost vs investment vs opportunity vs efficiency by shanen · · Score: 4, Informative
    Exactly the same kind of foolishness that keeps the US from going metric. If you prefer to see it as an opportunity to invest in new metric tools or IPv6 hardware and software, then it looks like an opportunity. The people who fight against such changes want to harp on the total costs, and generally refuse to consider rational transition strategies.

    To me, it mostly comes down to efficiencies. The reason we measure things in the first place is so we can perform mathematical operations on the resulting numbers. Metric units are easier and more efficient for the mathematical operations, and therefore confer some competitive advantage on the people using them. It might be a large or small advantage, but it's always there.

    IPv4 has some design limitations. IPv6 will address many of those problems, and the networks (and countries) that use that system will have competitive advantage.

    What I find amusing is that many of the same people fighting against IPv6 on grounds of cost are the same people who want to argue the damage of Hurricane Katrina wasn't so bad. After all, it will give us the "opportunity" to invest billions of dollars in rebuilding things. Hey, why don't we destroy a major city every year? Look at all the "opportunities" we'd have. However, moving to IPv6 is NOT to be equated with random destruction, but is rather a rational form of evolution.

    --
    Freedom = (Meaningful - Coerced) Choice != (Speech | Beer^2), and sad sock puppets' bad mods avail them naught.
    1. Re:Cost vs investment vs opportunity vs efficiency by MasterC · · Score: 2, Informative

      ...damage of Hurricane Katrina wasn't so bad. After all, it will give us the "opportunity" to invest billions of dollars in rebuilding things.

      This is known as the "broken window fallacy" or Parable of the broken window.

      --
      :wq
  21. Re:A LOT is TWO WORDS by Anonymous Coward · · Score: 2, Funny

    You suck... like.. alot.

  22. Re:A LOT is TWO WORDS by HTTP+Error+403+403.9 · · Score: 3, Funny
    Dear Slashdot editors,

    Please don't perpetuate the misconception that "alot" is an English word. It's TWO WORDS the first is "a" and the second is "lot".

    Thanks, Concerned Slashdot reader

    Your rite - their is many loosers that have pour grammer.

    --
    I'm not a Troll, it's reverse psychology.
  23. June 2008 deadline by jhines · · Score: 2, Informative

    From the fine article,

    "The government is supposed to be on a relatively rapid path toward IPv6 migration since the Office of Management and Budget (OMB) mandated (PDF file) this past August that the federal government move to IPv6 by June 2008."

    But yes, there is an annual IT budget that is impacted by this.

  24. 75 billion? who cares, it isn't going to happen by Anonymous Coward · · Score: 3, Insightful

    IPv6 isn't going to happen, because it doesn't need to happen. I can get to all the web sites I need. So can you. My coffee pot isn't on the internet, and if it needed to be, I'd use NAT, or invent some new multiplexor protocol that sits on IPv4. Don't you people realize this???

    I love the guy up their who said IPv6 will *create* $75billion in the economy. How the hell will it do that?

    I'll issue my usual challenge to the IPv6-fans: If you love IPv6 so much, cut yourself off from IPv4 completely. Don't use an IPv4 address. Don't access IPv4 sites. That's what has to happen for IPv6 to be a reality. If you're running IPv6 on top of or alongside IPv4, you haven't "switched over" yet. You're just goofing around with some nonstandard network protocol. Might as well use fidonet.

    Go ahead, I'm waiting......

    1. Re:75 billion? who cares, it isn't going to happen by cli_rules! · · Score: 3, Insightful

      To support parent further - hasn't NAT become (mostly) a Good Thing from the security perspective?

  25. This is the commerce department estimate... by Bored+Huge+Krill · · Score: 5, Insightful

    ...and therefore assumes that it will be carried out under a no-bid contract awarded to Halliburton, who will bill Cat-5 cables at $10,000 each. Sounds a fair estimate to me :-)

  26. Is that all? by Xaroth · · Score: 2, Funny

    I mean, if they really think it can be done for that, I'd be willing to pony up the $25 myself.

    Oh, wait.

  27. Where's this cost coming from? by jd · · Score: 4, Funny
    • Windows Updates: Free. Microsoft Research already provides a stack which is (therefore) already paid for.
    • Linux Updates: Well, you want the USAGI patches if you want top-of-the-line IPv6 support, but either way it's free.
    • *BSD Updates: The KAME stack is already in there.
    • Cisco Updates: Any reasonably recent version of IOS or PIX will have IPv6 as standard. Therefore it's already paid for, therefore it is free. If you've already got a support contract, updating the firmware should also be free.
    • E-Mail Updates: Most e-mail clients (and servers) should already support IPv6
    • Web Updates: Apache is about the only server that matters and that already supports IPv6. I believe all the major clients do, too
    • Multiplayer Games: Probably the one area that doesn't have IPv6 as standard, but it should be possible to provide IPv4-over-IPv6 tunnels for those


    As far as I can tell, the sum total cost for all of this uber-expensive upgrade would cost (in old English currency) about 2'/6, and would take the United States less time than it currently takes for Joe Average to reboot from a BSOD. For this reason, I would like to make the US Government and the various Internet providers a special deal. I will set up IPv6 for them, with full one-year warranty, for a mere $15 billion, paid in advance. If this sounds satisfactory, just mail me the keys to the server rooms and passwords for the servers and routers, and I'll get started.

    --
    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    1. Re:Where's this cost coming from? by Burdell · · Score: 3, Interesting

      OS and software updates are easy; people updates operating systems and other software all the time.

      Infrastructure updates are hard. Routers last a long time. Cisco's dependence on CEF (Cisco Express Forwarding, aka Customer Enragement Feature) and hardware forwarding means that routers that can forward tons of IPv4 traffic can't handle a little IPv6 traffic (for example, the widely used 7500 series). Telling the boss that you need to spend $300,000 to replace one router (that oh by the way works just fine except for a feature nobody is asking for) doesn't go over well, especially when you have more than one router.

      One of the widest used dialup concentrators is the Ascend/Lucent MAX and MAX TNT series. I believe UUNet used to use these for example (I don't know what they use now but I haven't heard of them changing); a lot of "national" ISPs resold UUNet dialup ports. TNTs have no IPv6 support at all even in the latest software updates (again, IIRC it is a hardware limitation). A lot of people still use dialup, especially when on the road; it is shrinking, so it is extra hard to spend big $$ replacing hardware that is operating just fine, but it isn't going to go away any time soon.

      I work for a relatively small ISP, but we'd have to spend millions of dollars to support IPv6 across our network. AFAIK no customers are asking for IPv6; one friend asked informally if we had any plans and I said no and he went on to other questions.

    2. Re:Where's this cost coming from? by adrianmonk · · Score: 2, Insightful
      For this reason, I would like to make the US Government and the various Internet providers a special deal. I will set up IPv6 for them, with full one-year warranty, for a mere $15 billion, paid in advance. If this sounds satisfactory, just mail me the keys to the server rooms and passwords for the servers and routers, and I'll get started.

      You also need keys to all the offices where there are desktop machines that have static IP addresses. Or any desktop machine that can't be automatically remotely reconfigured to use IPv6. Hey, speaking of that, is someone in some dark corner still using Windows 98 or Mac OS 9 for something important? Probably. Do those support IPv6?

      Oh, and by the way, what about the downtime of the servers as they are restarted? And do you think you'll be able to complete that firmware upgrade on the Cisco router and reconfigure the router with no downtime? If not, how are you going to ensure that the entire network being down doesn't cost the organization money?

  28. Does anyone actually use english measures anymore? by coyote-san · · Score: 2, Interesting

    Not to be dense, but does any manufacturer in the US still use english measurements? (Not consumer-facing products or places where legacy items are measured in english units.)

    I believe car manufacturers switched to metric components years ago.

    I'm sure aircraft manufacturers are also metric.

    Consumer electronics? Considering that the last domestic manufacturer closed years ago I think it's a safe bet that it's entirely metric now.

    Other industries?

    --
    For every complex problem there is an answer that is clear, simple, and wrong. -- H L Mencken
  29. How to pay for upgrades? by akmarksman · · Score: 2, Informative

    How about NOT building that "Bridge to Nowhere" in Alaska. That would save some money.

    --
    Marine Sergeant: Did I give you permission to b*tch, soldier?
  30. Re:And it's because... by rcw-home · · Score: 2, Insightful
    Why would I want to have the IPv6 routing table permanently shackled to the mess that is the IPv4 routing table?

    Also, have you heard of: "::aaa.bbb.ccc.ddd"?

    What previous version of IP are you talking about? You aren't seriously referring to Arpanet's NCP to IPv4 transition in 1981-1982 are you? Arpanet had roughly 200 hosts back then!

  31. Re:And it's because... by imroy · · Score: 2, Insightful

    Uh, what previous versions of IP? The Wikipedia article on the Internet Protocol says "Versions 0 through 3 were either reserved or unused". And even if there were versions before IPv4, the deployment would have been what? a dozen machines? We're talking multi-user mainframes and mini-computers at universities, not home PC's. Nothing like the hundreds of millions of hosts using IPv4. Why would the designers of IPv1 through IPv4 have made the addresses a superset of the previous version, when so few hosts actually exsisted? Why go to that trouble when it wasn't really a problem?

  32. Re:A LOT is TWO WORDS by zenneth · · Score: 2, Funny

    Just an FYI, but I know someone who used "alot" in their masters' thesis at Belmont U. It's kind of ironic, really, because she always put forth a front of being a very literate individual. She advised a high-school student that "alot" was indeed a legitimate word and when that student's teacher marked the "word" out and corrected the mistake, said student was quite unhappy. She defended herself for her mistake, as well, by using her thesis as an example. Just struck me as funny when I read the parent's post.

    --
    The Chronic *WHAT* les of Narnia!
  33. New Orleans by wheatwilliams · · Score: 2, Funny

    Hmmn. $25-75 billion? We could completely storm-proof New Orleans for less than that.

  34. That's right - people will buy anything! by NotQuiteReal · · Score: 5, Insightful
    Even if they don't need it - like lots of devices that will have their own IPv6 address, even if there is no reason to! (The proverbial Internet aware toaster will be a big seller!)

    We must move to IPv6, because the Internet just doesn't seem to be working right (or at least I tell myself that, because I wouldn't want to fix it if it weren't broken). I look forward to a time that each of my Happy Meal toys will be able to be connected to the Internet, yes we need IPv6 Now!

    Bah! As others have pointed out, there will not be much cost, if it rolls out more slowly. As you update hardware, get stuff that can do both IPv4 and IPv6 next time... eventually a critical mass will be reached and the switchover will happen.

    --
    This issue is a bit more complicated than you think.
  35. Re:A LOT is TWO WORDS by deafpluckin · · Score: 2, Funny
  36. That's ridiculous by Phil+Karn · · Score: 4, Insightful
    That estimate is just ridiculous. IPv6 has been in Linux, BSD, Mac OS X and Windows XP for at least several years. BIND has had support for AAAA records for some time. It's in Cisco router images. We just have to turn it on and use it!

    And we don't have to wait for our ISPs, either. I've been using 6to4 (IPv6 tunneled over IPv4) for years. It's especially useful on home networks where multiple servers have to share a single IPv4 address on a cable or DSL modem.

    6to4 works very well. A 6to4 tunnel coexists nicely with an IPv4 NAT on my home router. The computers on my home network can run conventional clients through the NAT just as they always have, while servers running on those computers can be contacted directly from the outside using IPv6.

    While not every Internet application yet speaks IPv6, the important ones already do. SSH is the most important, but popular SMTP, IMAP and HTTP implementations do as well.

    I cannot believe the handsprings users are expected to perform on retail commodity routers with kludges like "port forwarding" when 6to4 tunneling is both simpler and far more general and powerful.

    1. Re:That's ridiculous by evilviper · · Score: 2, Interesting
      And we don't have to wait for our ISPs, either. I've been using 6to4 (IPv6 tunneled over IPv4) for years.

      Yeah, I'm sure 6to4 is going to work perfectly for everybody, particularly the US government. Who needs to buy new routers, when you can just tunnel everything? Woohoo!
      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  37. Asian Homes will use up IPv4, cellphones would by billstewart · · Score: 2, Interesting
    As Asians get broadband at home, they're going to start burning a lot of IPv4 addresses, and to the extent that they deploy cellphones as IPv4 instead of IPv6, they'll also burn up lots of addresses. China's the main fast-growing player right now, but India may gradually get its act together and catch up. Japan and Korea are already heavily wired and/or wirelessed (insert canonical old-people-in-Korea joke here).

    But there are hard problems and easy problems

    • Linux, BSD, MacOS, and newer Windows versions all support IPv6 natively, though some of the support is rough (e.g. if your default DNS server doesn't know IPv6, things fail strangely or work slowly.)
    • BIND and Apache support IPv6 if you want them to, and Firefox mostly does. So do some LDAP servers.
    • Cisco, Juniper, and other major router vendors support IPv6 on newer equipment, but often their IPv4 support is in fast ASICs while the IPv6 uses slower CPU-driven processing so most ISPs haven't turned it on on most equipment, and IPv6 does take a lot more memory for tables because the addresses are bigger, and it seems that running dual-stack slows down everything compared to running IPv6-only and IPv4-only.
    • Dialup Internet support comes from a really wide variety of equipment - some stuff can be easily upgraded, other stuff is antique. Fortunately, most dial users are clients who can use NAT or tunnel servers so they can ignore the problem.
    • Home firewall routers like you've probably got under your desk don't support IPv6 - if you've got a Linux-based model, it might be upgradeable, but it might not have the horsepower to keep up with a fast broadband connection.
    • Lots of NAT, proxy, and tunnel variants, 6to4 gateways, etc. exist, and can be used to hide non-IPv6 equipment from the scary new IPv6 network, or to let IPv6 equipment pretend to be IPv4 when talking to older networks, so there's a lot of transition support possible for people who want to use it - but it's potentially a lot of work.
    • Lots of custom applications were written for IPv4 only, and would have to be rewritten to support IPv6 - it's a level of pain similar to getting Y2K bugs fixed. Some of them can be worked around by hiding behind 6to4 gateways, some can't. Sometimes it's just a database schema change, sometimes it's not.
    • ISP network management databases often just know IPv4 - supporting IPv6 not only means changing out lots of tools, but also input screens for users, etc. Some ISPs are better at that than others, but as with equipment replacement, major software changes require money, and most ISPs aren't making much.
    --

    Bill Stewart
    New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
  38. $75B Sounds low-ball to me. by Anonymous Coward · · Score: 2, Insightful

    I'd guess that it'd cost you a couple billion dollars getting the really big peers using IPv6 between each other and just tunneling IPv4 traffic around. By the time you get the players to the table and you get Cisco, Juniper and the big consulting firms all into it and the couple really big ISPs to show up at the table you've already blown a few million. By the time the pissing contests are all done, I could see that "project" costing a couple billion, easy. It's going to be a money grab any way you cut it.


    When you step back and look, you can migrate it down, start at some top level peers and push it down. ISPs can roll it out, smaller ones would have it easier but it's doable. A couple of big schools could switch over to IPv6, there is enough support between Linux, Windows and MacOSX that all the students could show up one year and it could be an ipv6 network. You start looking at businesses and that's when it starts to look like a mess. Every layer 3 device in the business will have to be evaluated, many replaced, many might not even be really audited as it is. It looks like y2k all over again. I don't even think most IT guys have IPv6 on their mind when they buy stuff.


    I'd wager, you could get all the top level peers to IPv6 and that would cost $5B or there about. Maybe you could get the 10 biggest ISPs to switch, that'd probably cost another $20B, I'm just swagging $2B a pop for the big 10, probably lot's of infrastructure upgrades to make it happen. So that's $25B. Start looking at corporate networks, who knows? I'd imagine it would cost a pretty penny just to get them peering IPv6 and using IPv4 internally; of course by this point there might be some really good reasons to use IPv6 across the board because you'll be losing access to things from IPv4.


    You take another step back, I setup IPv6 at home for my own good, not super easy. All my network jock buddies are IPv4 savvy and while they know specs and such, none seem to have a lot of IPv6 known-how for real. I think there is a pretty big void there. On the up tick, I think this is going to happen, it's just a matter of when, I also think that if we play our cards right we might be able to clean up a lot of the bullshit that is out there right now.

  39. Custom Software Upgrades are Expensive by billstewart · · Score: 4, Informative
    Yes, lots of the equipment gets old and eventually needs replacing, but the government really does keep equipment around long after it'd be obsolete in the commercial world - after all, a desk grunt who's typing memos at 100wpm and sending a bit of email is only generating information at ~100 baud, and as long as you stay off the Upgrade-Microsoft-Office-Every-Year treadmill, the main reason not to be using a 386 PC is that too many web pages want newer memory-hogging browsers, and even upgrading to a 3GHz Pentium doesn't mean you need a bigger router for the office if he's not downloading a lot more material.

    But upgrading custom software is a much different scale of project than simply upgrading boxes and reconfiguring some web servers. There's a huge amount of mission-critical big nasty badly-documented stuff out there running on mainframes, PCs, and Unix boxes of various sorts that knows about IPv4 and might or might not know about DNS and DHCP. Finding all of it isn't quite the same level of effort as finding Y2K bugs, but it's still a huge hard-to-estimate job.

    --

    Bill Stewart
    New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
  40. Re:And it's because... by adrianmonk · · Score: 2, Insightful
    ... IPv6 doesn't embed the IPv4 address space and everybody has to buy a new IP and have all domains with TWO different IPs to make the transition possible?

    Huh? RFC 4038 says this:

    IPv4 packets going to IPv6 applications on a dual-stack node reach their destination because their addresses are mapped by using IPv4-mapped IPv6 addresses: the IPv6 address ::FFFF:x.y.z.w represents the IPv4 address x.y.z.w.

    This seems to imply that IPv6 does contain the address space of IPv4.

    Of course, for it to be useful, eventually people will have to start using other addresses that are not part of IPv4. But no protocol design can get around that problem.

  41. Cost of transition by netrangerrr · · Score: 3, Interesting

    The cost estimate we (Army CERDEC IPv6 Team) have done for the Army IPv6 transition leads us to believe essential $0 acqusitions costs if all IPv6 transition is done within regular tech refresh cycles. If we're buying IT gear anyway, IPv6 comes as regular product improvements over the next 3-5 years. The money DoD is spending at this point is aimed at getting MORE CAPABLE networks and at operations costs to train admins to run two IP stacks (v4 and v6) until we can phase out v4. By more capable, we are referring to new IPv6-only services like network mobility (NEMO) and multihoming (SHIM6).

    --
    "As for the future, your task is not to foresee it, but to enable it." - Antoine de Saint-Exupery
  42. You know... by vertinox · · Score: 2, Interesting

    I hope that $75 billion includes fiber to the curb in every house in America.

    I love IPv6 and all, but lets do the fiber first and then deal with the protocol.

    --
    "I am the king of the Romans, and am superior to rules of grammar!"
    -Sigismund, Holy Roman Emperor (1368-1437)
  43. Re:I blame Al Gore by sharkey · · Score: 2, Funny
    This is all Al Gore's fault; he invited the internet.

    In all fairness, it seemed like a great party (with porn and online dating and Simpsons quotes and Natalie Portman naked and petrified), so you can't really blame the internet for accepting his invitation.

    --

    --
    "Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
  44. Cost by buss_error · · Score: 2, Funny
    IPv6 Transition to Cost US $75 Billion?

    Yeah, but only if you have four 6313's. If you have more than four, Cisco will want LOTS more money.

    --
    Necessity is the plea for every infringement of human freedom. It is the argument of tyrants; it is the creed of slaves.
  45. I think there's a little confusion on that by Sycraft-fu · · Score: 2, Insightful

    First off, I'm not sure that there's more households on the net in Europe and Japan than the US. I'd want to see a reliable source on that. However all that aside, that's not the real problem, companies and major backbone infastructure is and in that the US is far ahead. Though the Internet has been growing globally at a fantastic rate, espically since 2000, it it is still heavily US based. There's a lot more large (and thus expensive) infastructure that needs to be upgraded.

    Also the US has an additonal problem in that a lot of the net here was developed before other countries started really taking off. That translates to old equipment, some of it has been replaced, of course, but an amazing amount of it still works fine and thus is still in place.

    Well, when you are building new infastructure, it's not that hard a sell to pay whatever small amount extra to get IPv6. When you already spent $500million on a facility that still works fine, hard to get another $500million to upgrade it for a feature nobody is really asking for yet.

  46. what is going on over there?!? by SethJohnson · · Score: 2, Funny

    Actually, the current estimate on the war in Iraq is $350 billion.

    Wait a minute! I thought this Iraq affair was part of the IPv6 migration plan. Cheaper gas, faster internet I was told.

    Now that I've checked around on some websites, it looks like the current story is something about preventing torture and human rights abuses. Either that or implementing them abroad-- the photos and the text aren't matching up.

    Anyway, the big obstacle seems to be these fundamentalist zTerm zealots kidnapping our telecom engineers and holding them hostage trying to block multimedia internet content and return us to tools like lynx and gopher.

    Seth

  47. Re:Paving the way by Pienjo · · Score: 2, Insightful

    A few simple classes of automatically granted prefixes would do wonders along with a few simple routing rules. For example, to accomodate situations where NAT is used as a workaround to scarcity rather that for security, why not an address in the form of prefix, IPv4 address (of NAT device/firewall), arbitrary Ipv4 address. Addresses in that prefix could automatically be encapsulated into IPv4 to the firewall. The source address would make the right thing happen for the reply.

    Doing things like that could create an incentive for the edges to upgrade even if their providers can't be bothered to do so. It would provide value even if individual workstations/PCs were upgraded (OS) for IPv6 support. Intermediate routers wouldn't even know the difference.


    What you describe has been available for *ages*. It's called "IPv4 mapped IPv6 adresses", and it basicly boils down to the entire ipv4 range being a subrange of IPv6 (From the top of my head, the 3ffe:: is used for this). Still, it hasn't quite caught on.

    FYI: The opposite is available too, in a way. It's called 6-to-4, and enables *everybody* with an IPv4 address to use IPv6. You even get an entire /80 range to play with. No provider support needed.

    It would provide value even if individual workstations/PCs were upgraded (OS) for IPv6 support.

    The majority of the workstations/PCs doesn't even have to be upgraded. Windows XP natively supports IPv6 (it's merely disabled by default, but a simple 'ipv6 install' on a command line fixes that), Linux has been having support of it for the last few years, so unless you're running an ancient machine that would need updating for several other reasons, consider yourself IPv6 capable. MacOS X has been having IPv6 support since the early OSX days, IIRC. The list goes on and on.

    Heck, even Internet Explorer and Firefox can use IPv6. What more client support do you need ?

  48. Re: cost of IPv6 by Eunuchswear · · Score: 2, Informative
    I don't know what percentage of active switches do IPv6, but many of the older switches will start broadcasting the IPv6 because they don't understand it. Now your switch is a hub. That will choke any network that needed switches in the first place. Even a single switch that doesn't do IPv6 could take out a large chunk of your network.
    Huh? Switches don't do IP, they switch packets based on the MAC address. They'll work with IPv6 just like they did before.
    --
    Watch this Heartland Institute video
  49. Scalable addresssing for multihoming is just hard by billstewart · · Score: 2, Interesting
    I've been trying to think about the multihoming problem for maybe five years, and the answers don't seem to be getting any better (:-) IPv6's advocates made a big deal in the early days about how they were going to give us magical solutions for scalable addressing and routing, and we weren't going to have all the end users in another big swamp with all the anarchy of IPv4 address assignment and just longer addresses, but the main thing that seems to have been done about it is have ICANN price IPv6 space high enough to discourage casual experimenters from getting their own space.

    Some of the original motivations for end-users getting their own address space have gone away - DHCP means the cost of readdressing computers has gone to nearly zero, especially for desktop machines, and DNS means that you really _can_ move a server, though you might need a week or two of overlap on the address space for everybody's caches to time out (and IPv6 might force you to do some kind of tunneling deal with your old ISP), and firewalls mean that you might not by exposing most of your IP devices to the outside world anyway, just your public servers.

    But even that doesn't mean that routing becomes much simpler, because that's only useful if you can aggregate - for instance, you could get /48 of provider-assigned address space from ISP1, and advertise that space on your connection to ISP2, so the global routing tables still have two entries for you even though they're assigned somewhat more cleanly. And aggregation doesn't always work well for geographically dispersed end-user customers - it's one thing for a university to aggregate the addresses from a bunch of buildings that are all in the same city, but if you've got a retail store chain with a thousand stores, should they all be part of one /48 at headquarters and route their external traffic there through IPSEC tunnels, or should each branch get provider-assigned address space from whatever ISP is nearby and try to tie that mess together, or some hybrid of both? For performance reasons, especially with VOIP, you'd like to keep latency down, so it's better to keep traffic in the same half-continent or so if you can, but it's not clear that there's an obvious answer.

    IPv6 was supposed to free us from the evils of NAT. But the easiest ways to do multihoming either get into the swamp scalability problems or else do some kind of NAT or tunnel things to let you advertise one set of address space from two ISPs. Maybe that's not such a huge problem?

    --

    Bill Stewart
    New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks