Does ipv6 help in the case where an isp has a /17 (32k addresses) and an
ever-increasing customer/subscriber base wanting a real-world routable
address? Will ipv6 solve that problem where I will continue to have to
issue out a publicly routable address to my customers and I only have an
arin-assigned /17 but I need more and more addresses all the time? Today
and in the foreseeable future, can I still get more arin-assigned ipv4
prefixes if I request them and justify this with the aforementioned
increasing subscriber base? Will arin give me more v4 space? Lemme
know.... thanks
Aaron
-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Brian McGahan
Sent: Thursday, September 27, 2012 10:33 PM
To: Ryan West; Joseph L. Brunner
Cc: Cisco Fanatic; ccielab_at_groupstudy.com
Subject: RE: IPv6 for Websites
What's interesting though is that IPv6 actually makes the problem worse, not
better. The goal of IPv6 was to solve IPv4's address shortage and enforce
heirarchy, but realistically heirarchy cannot be enforced. At this point
the Internet is too highly and randomly interconnected for IPv6 to solve any
real problem.
The growth of the IPv4 BGP table is an indicator of why IPv6 won't solve the
problem: http://bgp.potaroo.net/ Currently the IPv4 table is at over
450,000 prefixes and growing, which is over 100% growth over the past 4
years. If you check the comparitive tables of IPv4 vs IPv6
(http://bgp.potaroo.net/v6/v6rpt.html) right now ~60% of the IPv4 space is
being advertised (~450,000 prefixes) and at ~10,000 prefixes IPv6
advertising ~.02% of its space. What will happen when every end device
actually enables IPv6 and needs to be globally routable? Not only will you
*still* need to route the 500,000+ (conservatively) IPv4 prefixes at that
time, but also the thousands or potentially millions of IPv6 prefixes in the
table.
I really hate to say this, but I think I have to agree with Joe on this one
;) IPv6 was defined in 1998 (http://tools.ietf.org/html/rfc2460). That's
almost 14 years it's been available and it has not ever been seriously
implemented. I think long term IPv6 will be a pipe dream that never really
took off and that some other protocol similar to LISP will be implemented to
solve larger scale routing and mobility issues.
Just don't email me a link to this post in 10 years when 99% of the Internet
is running IPv6 and I was 100% wrong ;)
Brian McGahan, CCIE #8593 (R&S/SP/Security) bmcgahan_at_INE.com
-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Ryan
West
Sent: Thursday, September 27, 2012 9:55 AM
To: Joseph L. Brunner
Cc: Cisco Fanatic; ccielab_at_groupstudy.com
Subject: Re: IPv6 for Websites
We might be, but a full BGP feed will take 8gb of RAM. Can't wait to see
all those /26's in my table.
Sent from my iPhone
On Sep 27, 2012, at 10:46 AM, "Joseph L. Brunner" <joe_at_affirmedsystems.com>
wrote:
> Your carrier needs to route IPv6 for you...
>
> Here's a hint: IPv6 was created to boost IT companies bottom line... its
not needed, never was needed, never will be needed...
>
> 99% of companies (or more) use nat... entire clusters of home internet
users can also use nat.
>
> The "Global IP Shortage" is a solution looking for a problem...
>
> Bet you $10 in 2020 we're all still using IPv4
>
> :)
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf
> Of Cisco Fanatic
> Sent: Thursday, September 27, 2012 10:29 AM
> To: ccielab_at_groupstudy.com
> Subject: IPv6 for Websites
>
> All -
>
> As IPv6 will be the future of Internet and I think I know much about IPv6
as I am studying for my CCIE.
>
> I have a quick question and finding it very difficult to implement.
>
> My company is hosting 2 sites for a small company. This company approached
and said that they want there sites to be IPv6 ready. We enabled IPv6
protocol on the switches and Checkpoint firewall but it still does not work.
>
> Am I missing something or it is not that easy as I am thinking?
>
> Any help will be appreciated.
>
> Regards,
> Yuri
>
>
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Received on Fri Sep 28 2012 - 09:11:10 ART
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