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Discuss IPv6 with other Americans. Find non-members from America here.

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How to configure for acess anonymously 3 Replies

This message appears whenever I…Continue

Tags: to, connect, as, anonymous, try

Started by Sr.Jhon Steven. Last reply by Alan Spicer Apr 14, 2013.

Basic IPV6 question icmp provider firewall issue 10 Replies

About 6 weeks ago I tried to setup a basic IPv6 tunnel from Home so that I could work through the Hurricane Electric IPV6 training. I am still not able to get a working connection between HE and my…Continue

Tags: question, icmp, ipv6

Started by Peter C. Tonnesen. Last reply by Sam Bowne Nov 5, 2012.

I've been tracking IPv6 nameservers/glue in TLDs since 2010; here's the latest view of who doesn't use IPv6.

Back in 2010, inspired by Hurricane Electric's list of top level domains that had IPv6 nameservers and/or glue ( …Continue

Tags: tlds, tld

Started by Patrick "Jima" Laughton Feb 13, 2012.

2012 North American IPv6 Summit 1 Reply

We wanted to let everyone know about the 2012 North American IPv6 Summit event taking place at the Grand Hyatt Denver, Colorado on April 9-11, 2012.  This event is being coordinated by the Rocky…Continue

Tags: RMv6TF, NAv6TF, Summit, IPv6, North

Started by Scott Hogg. Last reply by Scott Hogg Dec 19, 2011.

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Comment by Mike Mestnik on January 6, 2012 at 3:27pm

I'd like to site this RFC http://tools.ietf.org/html/rfc1925

(6) It is easier to move a problem around (for example, by moving the problem to a different part of the overall network architecture) than it is to solve it.

(6a) (corollary). It is always possible to add another level of indirection.

Comment by Mike Mestnik on January 6, 2012 at 3:22pm

I know this is complete balderdash and it actually causes more problems than it solves.  The internet is already a packet switched network, this would graduate it into an packet switched address switched network.

In any case it's clear that some ISPs have every intention of migrating there problems off onto there customers, instead of having great big routing tables they are opting to renumber every one all the time.

I'd propose a protocol to assign and propagate a specific time where both clients and servers would be synchronicity renumber a network and a period at witch both addresses would work.  This would happen at the link-layer so that TCP/UDP/ect clients and servers could continue to operate un-effected.

Comment by Mike Mestnik on January 6, 2012 at 3:16pm

@Patrick: I've talked with several ppl and they were under the impression that "Dynamic IPv6" addresses were ESSENTIAL to the point of being MANDATORY.  This is because address allocation will need to be continually updated to reduce the global and other routing table size(es).

I can understand there point, if today LA is given addresses that are one day needed in NW.  Moving address assignemnts accross country like that without adding another global route would require re-addessing of networks all along the way, that is not only would LA have to relinquish addresses to Huston/TX, TX would have to renumber a lower block onto this new higher block so the lower block can be given to NY...  Assuming NY is low and LA is high.

In this scenario if TX had free addresses on the low side then this is less of an issue, but that's unlikely because NY is already reaching address capacity.

Comment by Nalini Elkins on January 5, 2012 at 8:48am

January 19, 2012: 11:00AM PST, 1:00PM Central, 2:00pm

The agenda for the January IPv6 Business Information Exchange (BIE) meeting will be address planning for IPv6.  This is a free webinar. The IPv6 Business Information Exchange is a group formed as a free service by Inside Products (www.insidethestack.com)
for large enterprises to discuss issues which are important as end users of IPv6.  The goal is to facilitate exchange of 
technical information about IPv6 that is needed to actually implement IPv6 in large corporate networks.

The organizations speaking at the January 19th meeting are at the forefront of IPv6 implementation : John Deltognoarmanasco of the Veterans Administration (US government) and Fred Wettling of Bechtel Corporation.

The topics include:

-A description of the addressing plan,
-The size of their address block
-Who is on their address planning committee
-If they use Stateless Autoconfiguration and why
-If they use DHCPv6 and why
-How they handle access to the Internet or email? That is, are addresses seen on the Internet? Is that seen as a concern?
-Administrative costs
-Lessons learned

How would they do this differently if they had it to do over?

To register:

Comment by lvlinux on January 5, 2012 at 1:57am

I would be extremely frustrated if I were just granted true ipv6 access, set up all my devices, and then find that when my modem reset that my whole subnet had changed - wow. I do understand how that would make it easier for the ISP to dole out addresses, but man it totally goes against a lot of the point of ipv6. 

Comment by Alan Spicer on January 5, 2012 at 1:32am

@Patrick: Thanks for the link re: CPE, and "how much address space" information. I can sort of understand them assigning dynamically ... they want that space back if someone goes down for vacation or forever. But how are things going to be handled inside the customer network? They can just assign automatically from whatever allocation they get. But handling things like printers and other static ip things might get interesting. If the prefix / allocation keeps changing then the customer has to continue to do some kind of NAT or subnet routing to be able to keep their static assignments in place. There are reasons for static ip ... printers tended to stop working when left to get their ip by DHCP. VPN remote access and managing routers/switches and key server / desktop machines remotely comes to mind.

Comment by Alan Spicer on January 5, 2012 at 1:24am

@Troy: sorry to hear that. I haven't been diagnosed with anything ... but I never could work with less than 2 screens on in front of me. Here at home 1 Computer screen, 2nd screen either TV or 2nd computer, Ham Radio on 144 and 440 Mhz band scanning all the local repeaters, and HF on 80 meters right now.

Comment by Troy Johnston on January 4, 2012 at 10:13pm

@alan i have asperger's and adhd ,kinda hard NOT to be going 50 directions at once :(

Comment by Patrick "Jima" Laughton on January 4, 2012 at 10:07pm

@Alan: Actually, the CPE situation is getting better: http://www.networkworld.com/news/2011/121211-cpe-ipv6-event-253984....

As for "how much address space," my cohorts have seen anywhere from /64 to /48 per customer in real-world, native deployments.  The downside is that in a blazing step backward, some of these allocations are dynamic, changing every time the modem trains up.  I've heard two distinct examples (with /48s, even); one in Germany, one in New Zealand.

Comment by Alan Spicer on January 4, 2012 at 8:08pm

Most ISPs will already be v4 and v6 internally ... all gear an operating systems pretty much are. It's that darned last mile where ipv6 has not made it yet. And if you ask they act like (or really don't know) what you are talking about. When you persist they offer you a more expensive Business DSL or such. The same that I went through a few years ago to get SMTP ports open again after they had been open for 10+ years and suddenly got blocked. The question is ... Does end user premises gear handle IPv6? And if an ISP were to put you on native IPv6 how much address space would they really give you?


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