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Cisco Linksys Routers Still Don't Support IPv6

Julie188 writes "It's 2011, IPv4 addresses are officially exhausted, and the world's largest router maker, Cisco, still doesn't support IPv6 in its best-selling line of Linksys wireless routers. This is true even for the new E4200 router released just last month (priced at $180). The company has promised to add IPv6 to the E4200 by the spring. But it has not been specific about if and how it will offer an IPv6 upgrade to the millions of other Linksys routers currently running in homes and small businesses."

59 of 380 comments (clear)

  1. wow by Endymion · · Score: 2

    Yet another reason I'm glad I've always recommended against Linksys to friends and family. Shoddy equipment in the past, and no preparation for the future now.

    --
    Ce n'est pas une signature automatique.
    1. Re:wow by icebike · · Score: 4, Insightful

      Its not like they need new hardware to achieve ipv6.

      They need only offer a firmware upgrade.

      --
      Sig Battery depleted. Reverting to safe mode.
    2. Re:wow by Hatta · · Score: 2

      They don't even need to write the upgrade. Ship dd-wrt.

      --
      Give me Classic Slashdot or give me death!
    3. Re:wow by kundziad · · Score: 2

      Sadly, dd-wrt doesn't support ipv6 out-of-the-box. And this is the only way in which I dare use it on my network equipment. After a careful look around, it looks like Apple ships the best wireless routers (working ipv6, super-easy linking routers via wireless or Ethernet to extend their range)...

    4. Re:wow by shentino · · Score: 2

      But why offer new firmware when they can rake in more money pushing new equipment?

    5. Re:wow by sexconker · · Score: 5, Funny

      Yet another reason I'm glad I've always recommended against Linksys to friends and family. Shoddy equipment in the past, and no preparation for the future now.

      No preparation for the future now, but they'll be prepared for now in the future.
      Then they'll send that preparation back in time and everything will be hunky-dory.

      Haven't you seen the pointless brand awareness ads that CISCO runs, showing a classroom in China and one in the US teleconferencing?
      Or the giant out-side displays on opposite sides of the planet?

      Clearly these ads demonstrate CISCO's mastery of all things time and space. Not only is there 0 latency, the fucking sun is high in the sky in both places at the same fucking time. I wrote a detailed email to every public email address I could find for CISCO, but I only got one drone response. The drone asked me to clarify my concerns, to which I replied "YOUR FUCKING ADVERTISEMENTS SHOW A DISTURBING DISREGARD FOR THE FUNDAMENTAL LAWS OF PHYSICS". Still waiting for a response.

    6. Re:wow by Qubit · · Score: 2

      Ok. I am a techno-idiot. Is my current linksys router, circa. 203-ish, going to be OK, or is it going to not work?

      Is that a model number or a year?

      --

      coding is life /* the rest is */
    7. Re:wow by Cylix · · Score: 4, Funny

      It was one of the original routers from 203AD. (well 203ADish).

      Because at the time there was not nearly a large enough base for IP based data transmissions they relied more heavily on humans. This router utilizes various symbols that were popular among the time to indicate direction. With a bit of a wheel you can turn the directions to various paths and thereby facilitate the routing of information or rather people.

      All in all, it is more like a road sign which can be shifted this way or that.

      To answer the question, I'm afraid there is no update to this model because at the time of it's conception there was no implementation of IPV6 or IPV4.

      --
      "You should always go to other people's funerals; otherwise, they won't come to yours." -- Yogi Berra
    8. Re:wow by tqk · · Score: 2, Insightful

      Did you know, if they STILL DON'T support it that means they NEVER DID support it?

      Read much? He didn't ask whether it supported it. He asked if it was still going to work. I strongly suspect IPv4 is going to be supported for a long time to come, and IPv6 routers will handle IPv4 for him for just as long.

      Why do you ACs come here? To insult people on purpose? Bullies beat you up in recess today, and you felt the need to lash out at something, anything?

      --
      "Tongue tied and twisted, just an Earth bound misfit ..." -- Pink Floyd.
    9. Re:wow by lorenlal · · Score: 2

      Ok, a missed symbol entry engendered this much hostility, lol.

      Since I am not quite sure what this IPV6 actually is, I guess it is too difficult to explain if an older router will continue to work.

      In the sense of getting me to slashdot, google, WW, FB, wired, porn, and various other sites I frequent.

      You must be new here. That's nothing even remotely hostile. I found it quite cheeky and fun. Welcome to Slashdot citizen!

      Although, I do admit I see nothing to suggest that your browsing habits are much different than the rest of ours. I'm not sure what you meant by WW. Google indicates that means Weight Watchers.com. Although many of us could benefit from a few visits to that site, we're too busy eating what our parents bring down to the basement to really worry about any of that. I'd suggest mixing in a bit of Wikipedia and checking the IPv6 page for a nice intro. You should glaze over nicely, so maybe checking the IPv4 would be a better start.

      Remember: Use the Preview button!

    10. Re:wow by wcrowe · · Score: 2

      To CareerBuilder.com: "FUCKING CHIMPANZEES CAN'T DRIVE!"

      To ETrade: "FUCKING BABIES CAN'T TALK LIKE THAT, LET ALONE DAY-TRADE!"

      To Frito Lay: "FUCKING DORITOS CAN'T BRING PEOPLE BACK FROM THE DEAD!"

      --
      Proverbs 21:19
  2. ipv6 support on Cisco/Linksys routers by Anonymous Coward · · Score: 5, Informative

    dd-wrt FTW

    1. Re:ipv6 support on Cisco/Linksys routers by rrossman2 · · Score: 4, Informative

      I second this. Plus every one I've installed DD-WRT on has ran multitudes more stable than the official firmwares have.

    2. Re:ipv6 support on Cisco/Linksys routers by (startx) · · Score: 3, Informative

      Except you need a version with at least 8MB flash for dd-wrt to support ipv6. I just spent weeks trying to get ipv6 to work on my WRT54GL with 4MB flash, but none of the official (or unofficial) builds I could find supported ipv6. I finally just broke down this afternoon and picked up an Asus RT-N16 with 32MB flash and am uploading DD-WRT as we speak.

    3. Re:ipv6 support on Cisco/Linksys routers by jpedlow · · Score: 2
      ASUS RT-N16

      100% stable, takes a beating, super fast

      makes wrt54GL's and friends look like ameteur hour.

    4. Re:ipv6 support on Cisco/Linksys routers by Mr.+DOS · · Score: 3, Insightful

      Indeed. In fact, there have been a number of instances where I've bought a Linksys router and installed DD-WRT not because I wanted the extra features but because I needed the extra stability. I've maintained for years (albeit with somewhat shrinking confidence) that Linksys' hardware is perfectly fine; it's just the firmware that makes their products suck.

    5. Re:ipv6 support on Cisco/Linksys routers by luizd · · Score: 2

      Also, there is OpenWRT. You can build a custom-made firmware with just what you need. You can fit ipv6 support and a web gui in 4MB of flash.

    6. Re:ipv6 support on Cisco/Linksys routers by Mr.+DOS · · Score: 2

      I would say DD-WRT from the research I've done, although it's the only one I've tried myself. OpenWRT seems to be the least turnkey (but most flexible), with Tomato apparently being decently user-friendly once you get it all set up, but fairly complex to install.

    7. Re:ipv6 support on Cisco/Linksys routers by rwa2 · · Score: 3, Interesting

      I just started using Tomato a couple years ago on my WRT54Gv4. Did some benchmarks on speedtest.net before and after.

      HyperWRT (based on the original Linksys FW) maxed out around 20mbps.
      Tomato managed to max out my 25mbps FiOS line.

      So Tomato saved me from a hardware upgrade. Plus the web interface is much prettier and has traffic graphs.

    8. Re:ipv6 support on Cisco/Linksys routers by jomcty · · Score: 5, Informative

      I find that TomatoUSB has the most polish of the mentioned firmwares. TomatoUSB is extremely stable, the QoS just works (tm) and IPv6 support is currently being integrated. I moved to it from dd-wrt over a year and a half ago and haven't looked back.

    9. Re:ipv6 support on Cisco/Linksys routers by fuzzyfuzzyfungus · · Score: 3, Insightful

      Unfortunately, when it comes to most consumer hardware, having the same model number means getting the same shape and color of plastic box around the circuit board(s). So long as doing so doesn't falsify any of the claims on the box grossly enough to be legally sticky, they can and do feel completely free to change the innards around, not infrequently without even a version or revision number bump.

      Board layout changes, totally different bootloader, entirely different SoC from a completely different vendor, Switch to VXworks and halve the available RAM, hey, if the web interface looks the same, its the same product, right?

      I'm definitely not bitter about this.

    10. Re:ipv6 support on Cisco/Linksys routers by UnknownSoldier · · Score: 2

      Another me too. Used DD-WRT for 6 to 12 months, and switched over to Tomato ever since (a year or two now) due to the dd-wrt security hole(s) on the WRT54GL.

      P2P apps seem to be the best way to test a router's stability :-)

    11. Re:ipv6 support on Cisco/Linksys routers by venom8599 · · Score: 2

      I got my WRT54GL working just fine with IPv6--all I had to do was use the most recent 'VoIP' build (14896) which weighs in at 3.61MB. Though according to their chart the K2.4 versions are supposed to have IPv6 support in the 'STD' build, but obviously didn't. If you're using a router that supports the K2.6 version you can get it in the 'STD-Nokaid-Small' build which is also under 4MB. Of course, there's the problem that it doesn't include ip6tables, ping6, or any other useful tools. Which makes it really a pain to configure and diagnose for things like 6to4 tunneling. Oh, and also that IPv6 multicast packets can't pass through the shitty MAC address translation if you're using a DD-WRT router in client bridge mode.

    12. Re:ipv6 support on Cisco/Linksys routers by thatskinnyguy · · Score: 2

      Linksys routers that will flash easily to DD-WRT are getting harder to come by.

      A few years ago, with firmware v.1, a flash took 5 minutes and came loaded with extra features (Bridging, VPN) but since v.3 I think, the images have to be smaller and less featured in order to fit on the tiny flash chips. Not only that but the procedure to do it now involves sacrificing a goat, banging your head against the wall and constantly reverting the firmware. I want the large flash back!

      --
      The game.
    13. Re:ipv6 support on Cisco/Linksys routers by vivek7006 · · Score: 2

      Agreed. I was about to throw away WRT-160n in the garbage because it was so unstable. Then someone suggested DD-WRT and boy what a difference! Now its rock solid. Linksys routers are good hardware bit crappy firmware.

    14. Re:ipv6 support on Cisco/Linksys routers by hjf · · Score: 4, Informative

      Yes. If you stick to the "stable" release, it's 2 years old and basically not really "stable" as it tries to be a one-size-fits-all release, usualy aimed at whatever 3 or 4 models the actual developers of the project have (thousands of people participate in forums but they are "testers").

      There's no "stable" release. There are hundreds of undocumented "builds" which fix some things and break others. I tried about 10 different versions until I found one that worked with my WRT600N and gave me 300mbps (the other ones didn't enable the 5GHz radio).

      Not only that. A buggy firmware screwed up my NVRAM and I had to take my router apart and reset it via serial port (which is fun and I enjoy doing when I have free time, just not to my main router RIGHT WHEN I NEED IT).

      For every DD-WRT release you want to try, you have to make a 30/30/30 reset (with the router ON, hold reset - 30 seconds, unplug the router, 30 seconds, plug it back in, 30 seconds, release reset). You CAN'T save the config file cause it's not compatible between different builds (did you say you didn't like reconfig?). Every tutorial out there Just Works for whoever wrote it - years ago on an unspecified build, which of course isn't the one you're running and it's not going to work with yours either.

      IPv6 is NOT supported out of the box (no, it doesn't matter if it comes built-in. The web config doesn't have a web page to set up the ipv6 stuff, and not even popular tunnel brokers, like HE and Sixxs Just Work. You have to make them work. Some things you do through web config, others through broken, ugly startup scripts.

      Don't get me wrong, I love DD-WRT. I use it, but it's not something I'd recommend to the average person. It goes way beyond "reset to factory defaults", it crosses the "keep your soldering iron ready" level.

    15. Re:ipv6 support on Cisco/Linksys routers by QuantumRiff · · Score: 2

      Most of the newest DD-WRT firmware doesn't have IPv6 support anymore (at least not on my wrt54g).. Reading the forums, it was removed to make room for other features. Annoying, since there is support for all sorts of crap in there.

      --

      What are we going to do tonight Brain?
    16. Re:ipv6 support on Cisco/Linksys routers by CAIMLAS · · Score: 3, Interesting

      For the performance gain you see by going to dd-wrt, I've seen the same leap by going from dd-wrt to the tomato firmware. (The features in dd-wrt out pace the weak hardware in the devices, anyway).

      For a basic home wireless router, the hardware is pretty great. Don't ask it for much more, though. :)

      Considering what else is out there, I don't think I'll be buying any more Linksys products. The cost/benefit doesn't pan out. Nearly identical equipment is available for half as much, and better is available for less.

      --
      ~/ssh slashdot.org ssh: connect to host slashdot.org port 22: too many beers
    17. Re:ipv6 support on Cisco/Linksys routers by spongman · · Score: 2

      tomato for more win

  3. Comeon guys by Altus · · Score: 5, Funny

    Go easy on them, Cisco is such a small company and really there was no way they could have seen this coming.

    --

    "In America, first you get the sugar, then you get the power, then you get the women..." -H. Simpson

    1. Re:Comeon guys by darkmeridian · · Score: 2

      It should be no big deal for them to license code from Tomato USB firmware or DD-WRT, both of which support IPv6 amongst many other really cool features. I don't buy routers that do not support DD-WRT, and I strongly prefer routers that support Tomato USB.

      Hopefully, failing that, Cisco can still add IPv6 support through a future firmware upgrade. I doubt anyone who just spent $180 on a router is going to buy a new one a year from now.

      --
      A NYC lawyer blogs. http://www.chuangblog.com/
    2. Re:Comeon guys by niado · · Score: 3, Informative

      >>>no way they could have seen this coming

      Um.

      What? I saw the IPv4 exhaustion coming two years ago, and I don't even work in this field. Cisco should have known years ahead and built-in the v6 code just like Microsoft did with Vista years ahead of schedule.

      whoooooooooooooooooooooooooooooooooooooooooooooooooooooooosh.

    3. Re:Comeon guys by Mr.+DOS · · Score: 2

      The only problem is, they'd have to agree to the GPL.

      They already did. Why else do you think the WRT54GL and WRT160NL exist?

    4. Re:Comeon guys by Demonantis · · Score: 2

      Don't they own a /8? I bet not supporting IPv6 will generate them a lot of revenue in the future renting ip addresses. I bet you they saw it coming.

  4. Inexcusable by ravenspear · · Score: 3, Insightful

    Apple, Netgear, Dlink, etc are offering support for it.

    This is why no one wants to switch yet. If the users can't access your sites businesses are not going to judge it very cost effective to make them available on v6.

    1. Re:Inexcusable by rwyoder · · Score: 2

      Apple, Netgear, Dlink, etc are offering support for it.

      This is why no one wants to switch yet. If the users can't access your sites businesses are not going to judge it very cost effective to make them available on v6.

      It's not about *switching*.
      It is about getting dual-stack devices and dual-connectivity.
      Once set up this way, you don't even notice whether the website you just went to was IPv4 or IPv6.
      I've been set up this way for a number of years via a tunnel-broker.

  5. Re:Why do we need IPv6? by burne · · Score: 3, Insightful

    1993 called, reminding me to remind you that you must have missed their memo about the end of 'class C' and their new, shiny CIDR-plan.

  6. Re:Who cares? by LordNimon · · Score: 4, Insightful

    Considering most OS's out there support IPv6 (Vista, 7, Linux, Mac OS X) and most have it defaulted ON out of the box, why not add the capability?

    Because it would cost Cisco money to do so, and they would get no financial benefit out of it. Those routers were never advertised with IPv6 support, so why should they be upgraded for free?

    --
    And the men who hold high places must be the ones who start
    To mold a new reality... closer to the heart
  7. Re:Who cares? by dkf · · Score: 2

    You will when your ISP mandates IPv6.

    The ISPs have another alternative: refuse to offer connectivity except via NAT unless you're using IPv6. If you're content with being a second-class user, you can continue to use your crappy Linksys. Your call.

    --
    "Little does he know, but there is no 'I' in 'Idiot'!"
  8. Re:Why do we need IPv6? by Kadin2048 · · Score: 2

    There will -- assuming the slow pace of the IPv6 deployment doesn't totally fuck it up -- probably be devices that consumers will want to use that will depend on IPv6, for things like multihoming.

    If you don't have IPv6, it may become more difficult for your mobile device to roam seamlessly from the cellular WAN to the home LAN when you walk in the door, meaning that the video call or whatever it is you're doing (watching porn, more likely) will drop.

    I frequently hear people basically claiming that "nobody needs IPv6" or "nobody needs end-to-end connectivity," and it has a certain "640k is good enough..." ring to it. Of course people don't need IPv6 now, because they don't have IPv6 now -- ergo they can't depend on it yet. But once we have a critical mass of users with true IPv6, so that developers can begin to take advantage of it, then we're going to start to see services that depend on it, and users will start to depend on them.

    --
    "Ladies and gentlemen, my killbot features Lotus Notes and a machine gun. It is the finest available."
  9. Irresponsible. by A+beautiful+mind · · Score: 4, Insightful

    This is really irresponsible on Cisco's part. I don't care about their monetary considerations, adding IPv6 support into their Linux derived routers wouldn't have been all that hard or costly for them.

    Their refusal to enable IPv6 support is having a bad effect on IPv6 adoption. I don't think most people realise how bad IPv4 exhaustion can be. IPv4 exhaustion puts a cap on internet growth, which in turn retards economic growth.

    Seriously Cisco, fuck you, just fuck you.

    --
    It takes a man to suffer ignorance and smile
    Be yourself no matter what they say
  10. Re:Who cares? by shish · · Score: 4, Insightful

    Cheap gadgets not being future-proof I can understand, but this is a $180 gadget not being 10-years-ago-proof...

    --
    I mod down anyone who says "I will be modded down for this", regardless of the rest of their comment
  11. Re:Why do we need IPv6? by cmburns69 · · Score: 2

    Completely hiding the end user from IPv6 is extremely difficult for an ISP. As websites migrate to IPv6 (without an IPv4 version), what IP address should the end user be directed to?

    For example:

    1. SomeCorp.com sets up his website with only an IPv6 address.
    2. Joe Schmoe attempts to visit the website.
    3. The DNS query for SomeCorp.com returns the IPv6 address.
    4. Joe Schmoe's computer cannot get to the address, because his IPv6 has been disabled by his ISP.

    What this means is that the users router MUST support IPv6 unless the ISP supports tunneling. And I suspect this will be beyond most users.

    --
    Online Starcraft RPG? At
    Dietary fiber is like asynchronous IO-- Non-blocking!
  12. Re:Okay, what am I missing here? by John+Hasler · · Score: 2

    > Okay, what am I missing here?

    The fact that some of their bottom of the line consumer routers still don't support IPv6 despite the fact that their more expensive products have supported it for years.

    --
    Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
  13. Re:I don't see Linksys as core equipment. by Hatta · · Score: 2

    Getting rid of NAT is the whole reason to switch to IPv6. NAT is evil and should never happen. And before you say it, there is NO security benefit over a properly configured stateful firewall.

    --
    Give me Classic Slashdot or give me death!
  14. Re:Those WRT54G derivatives by Junta · · Score: 2

    Tomato does not, but TomatoUSB does do IPv6.

    --
    XML is like violence. If it doesn't solve the problem, use more.
  15. Re:Duh just run Linux... by John+Hasler · · Score: 2

    And you'll find that you are still on IPv4 and behind a two layer LSNAT system because your neighbors, ordinary consumers who could no more install DD-WRT than they could perform brain surgery on themselves, all just went out and bought brand-new IPv4-only Cisco routers.

    --
    Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
  16. Re:Who cares? by j+h+woodyatt · · Score: 2

    You mean, people paid money to Cisco for features they still haven't gotten yet? Did Cisco book that revenue yet, or did they defer booking it until the feature will actually be delivered? Inquiring accountants who remember the Enron scandal want to know!

    --
    jhw
  17. Summary is false by TrancePhreak · · Score: 3, Informative

    I didn't RTFA, but I know the summary is inaccurate. I saw some other posts about others with Linksys routers with IPv6 and am here to tell you I am one too. I have a WRT610N and have been on IPv6 in the home for a couple years. Comcast turned on the IPv6 for me recently too.

    --

    -]Phreak Out[-
  18. Re:Who cares? by camperdave · · Score: 4, Insightful

    When did people develop this sense of entitlement that every little cheap-ass consumer product they buy ought to be future-proof?

    IPv6 has been out a lot longer than my router. It's not about being future-proof. It's about being present-proof.

    --
    When our name is on the back of your car, we're behind you all the way!
  19. WNR1000 ipV6 support hard to find by jcaplan · · Score: 4, Informative

    I was surprised that TFA stated that the Netgear WNR1000 supported IPv6 since I keep my firmware up to date and have not noticed support. Turns out that the version with IPv6 support, 1.1.2.28, does not appear in the router firmware update page but can be found in the knowledge base at: http://kb.netgear.com/app/answers/detail/a_id/18631/kw/ipv6%20wnr1000
    It is a new update as of Feb 3, 2011 and its listed as being for the WNR1000v2 - no mention of the more recent v3. IPv6 compatibility is not mentioned on the product page or the spec sheet.

  20. Too funny... by CAIMLAS · · Score: 4, Informative

    This is too funny: you realize this is Cisco we're talking about here, right? The company that still requires obscene steps and wads of cash to get security updates for a paid-for product?

    I don't mean to flamebait, but seriously. Cisco is one of the most frustrating (large) companies to deal with in this regard. Smaller companies try to do the same things, but ultimately those behaviors turn people off their products. Why is Cisco still bannered about as the end-all, be-all for networking equipment, given that:

    * feature for feature, their switches are inferior in many ways to their competetors
    * Cisco products have less fabric provisioning than, say, HP switches, which cost a fraction as much (off the top of my head, 30% less fabric at 4x the cost)
    * Less usability built into the devices themselves (limited interface feature set). This applies to the 'home' routers, too: the Buffalo home routers are comparable to the Linksys (in some cases, 'identical'), cost less, and have better firmware. And lately, the radios have been better, too (for wireless).
    * Getting upgrades for an old Cisco is difficult and costly. "Old" usually means "not a couple years new and doesn't have a current service contract".

    I mean, seriously: it still costs how much for a Cisco PIX 50x? We're not even talking about something recent; 501s still sell, new, for over $150. It's no small wonder that small businesses buy things like Sonicwall devices given the alternative in 'name brand networking equipment'.

    You can argue that it's worth the money due to comprehensive support, lifetime this or that, or what have you. For most people, upon careful examination, the truth is that Cisco isn't a good value decision.

    --
    ~/ssh slashdot.org ssh: connect to host slashdot.org port 22: too many beers
  21. Re:Who cares? by mysidia · · Score: 4, Insightful

    When did people develop this sense of entitlement that every little cheap-ass consumer product they buy ought to be future-proof?

    We're not talking future-proof here. IPv6 is here, now, and yesterday.

    Usually consumers have a reasonable expectation their product be present-proof. If it claims to be a router, it should meet current versions of the internet standards, in regards to node requirements for routers.

  22. Re:Who cares? by petermgreen · · Score: 3, Insightful

    It sounds like you are relying on accepting incoming connections to a ssh (or any other) server on a home connection. Initially your ISP will probably let you keep a public v4 IP for some token extra cost (or even free on request) but over time expect that cost to gradually ratchet up as the market value of v4 IPs increases. Or your ISP may decide to be nasty and say that to get a public v4 IP you have to upgrade to a significantly more expensive "buisness" connection.

    If this service is important to you then you should be making enquiries with your ISP and/or making contingency plans sooner rather than later. It's always better to have plans for dealing with a problem than to have it thrust on you with no warning.

    --
    note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
  23. Re:Oh they care: their incentive is revenue. by masterwit · · Score: 2

    I don't think they care.

    Sorry for quoting your posting title to start, but I'd like to add to what you've already touched on here...

    Internet switches are far easier and cheaper to produce and with the advent of IPv6, it will be economically feasible for an ISP to provide multiple addresses for a single residence. In this way buying a wireless switch will be much more plausible and cheaper for the user. I.E. something like this:

    Step 1: Refuse to support upcoming IPv6 standards.
    Step 2: Prolong purchasing of IPv4 routers and similar devices when addresses are in short supply.
    Step 3: Continued profit.

    We all know that this business model will not last forever and I am certain Cisco does also - they are not a bunch of idiots. But in the same sense, with few ISP's showing an active desire to switch to IPv6 (not talking internet backbone Akamai, Level 3, etc) and a continued profit from IPv4 routers, there is really little incentive other than ethics to support the new standards. (And common sense which is a rare commodity)

    It'll take years for people to start caring about this much. By that time, the current product line will be swapped out for new gear.

    My thoughts exactly...plus when we finally make the switch, it will be the Cash-For-Clunker-Routers - think of all that potential profit! Shoot... they may even be able to buy futures on their resistance to a natural internet progression. (jokes)

    (I really hate playing the devil's advocate, but the market and laws must create an incentive, we know how "morals" work...)

    --
    We should start a new Slashdot and return control to the geeks. It actually wouldn't be that hard to get some users to
  24. Re:I don't see Linksys as core equipment. by bbn · · Score: 2

    Yes. And 40-bit SSL should be enough for anybody.

    Er. Uh. I mean to say: "It's really, really obscure! So it must be safe!"

    Say again? It is not obscure, it is a mathematical property from the fact that 2^40 is not a very large number but 2^64 is.

    How long does it take to scan your subnet? It is easy to calculate, take an average ADSL home connection that is 10/1 Mbps. An IPv6 echo request ping packet is 118 bytes. Packets per second: 10,000,000 / 118 / 8 = 10593. Seconds to complete scan: 2^64 / 10593 = 1,741,408,861,862,508 seconds. Or 55,219,712 years.

    Of course 55 million years is the time for someone to scan you. If you have the worm and is doing the scanning the upstream bandwidth would be the limiting factor. So it would take you 10 timers longer for you to scan _one_ guy (*).

    Really - how effective do you think this worm would be at spreading like that?

    And before you come screaming "I got 100/100 fiber to the home superconnection", ok so for you it will only take 5 million years to complete a scan of your network.

    Add to that the fact that you are changing your address every hour by random, so with a very high probability it will never find your address even given million of years.

    (*) assuming this guy only has a /64. Given that ISPs are supposed to give people /56 or /48, you do that math as homework.

  25. Re:I don't think they care. by rdebath · · Score: 2

    IPv4 actually 'ran out' a while back, we passed the 5 billion devices connected to the (4 billion address) internet back in August '10. Massive NAT and restrictions on public IP address allocations means that IANA ran out quite a bit later. The restrictions are set to get even more severe but most of the NICs won't actually allow their reserves to completely run out for years. I'll just be nearly impossible to be allocated any addresses.

    So Cisco are seeing that the current product line will continue to work as long as the ISP will provide any sort of super NAT'd IPv4 address. Only during the end game a few (perhaps five perhaps twenty) years from now will the end user IPv4 devices stop working and will 'mom and pop' have to do something.

    Companies are different; Cisco's VPN software, used by many companies, doesn't work with multiple users behind a NAT. Any server software; including Cisco's needs a public address for the clients to connect to. IPv4 exhaustion is already hurting Cisco and their customers for the E4200 router.

    PS: I personally have 14 devices with "Local Internet addresses" (talk about an oxymoron!) behind a single IP so I think that 5 billion is an underestimate. ... I think I may have miscounted; a laptop with WiFi has two IP addresses. ... except this one doesn't ... except when it runs Windows ... virtual machines too !!!!

  26. Re:I don't see Linksys as core equipment. by Nigel+Stepp · · Score: 2

    All NAT devices have a stateful firewall; tracking state is how NAT can happen at all. If you remove NAT, you are still left with a firewall with rules to deny inbound connections unless initiated from inside.

    That is, the security you're talking about is not provided by NAT, but by the firewall underneath NAT. That's not going anywhere.

    --
    4096R/EF7BAFA6 79E1 DF98 D09D 898F 9A11 F6F0 DDDC 23FA EF7B AFA6
  27. Re:I don't see Linksys as core equipment. by bbn · · Score: 2

    It is obscure. You can keep saying it's not, but it nonetheless is. (You do the dictionary look-up on that word as homework.)

    Ok, I assume we will be looking in a computer science dictionary, lets just take Wikipedia on the subject: http://en.wikipedia.org/wiki/Security_by_obscurity

    Quote: Security through (or by) obscurity is a pejorative referring to a principle in security engineering, which attempts to use secrecy (of design, implementation, etc.) to provide security.

    What we are discussing here can never be obscure by definition. If it was we would not know how it worked since that would be the secret.

    Combine the tenacity of something like Blaster with the fact that random generally isn't, and such software will land somewhere. Furthermore, I think you genuinely underestimate the number of folks downloading and running such niceties as "FREE Registry Cleaner 9000" and the "OMG PONIES!!!" screensaver, which allows a fair number of seed nodes out of the gate. (I made those names up. You get the point.)

    Actually I do not get the point. In fact it seems you are missing it too. People that install malware are not protected by NAT are they now?

    And, of course: Nevermind the fact that such a routeable address will not exactly be secret to begin with: In the absence of NAT, whatever host(s) you communicate with will know this address, and it will no longer be obscure.

    The worms I commented on did in fact scan the net at random and did not limit the scan to hosts the client already had a relation to. Being such limited will delay spreading in a drastic way. Back in the day you could not install Windows on a net connected machine, it would be compromised before you had a chance to download the patches. This would not happen with IPv6 because scanning is not feasible and the machine would only make outgoing connections to Microsoft and other large sites that can be assumed not to be infested with worms.

    Given enough datamining on a popular and compromised/ill-intended sites, and producing rather complete maps of an individual's home subnet should be practical.

    No that would give you old useless data. Knowing what your subnet was like yesterday does not give you any ability to find machines today.

    ... but it will fail for someone.

    So, if we're cannot rely on obscurity by itself, then we'll have to rely on firewalls.

    You need to know what privacy extensions protect against. It protects against making scanning feasible and against tracking. But it is not a firewall and is not meant to be one. Just like NAT is not a firewall.

    I commented only on the claim that worms could spread on IPv6 like in the old days before NAT, and I stand by that they can not. Those old worms depended on the ability to scan which is not practical with 64 bit subnets.