nanog mailing list archives

Re: Hotels/Airports with IPv6


From: Owen DeLong <owen () delong com>
Date: Fri, 10 Jul 2015 21:55:53 -0700

How can it be a large, complex deployment if it’s greenfield.

In that case, you need to acceptance test the IPv4 just as much as IPv6.

The difference is that you don’t have to rerun your acceptance tests 6-months later when you have to implement IPv6 in 
a rush because you suddenly learned that your major client gets major suckage on IPv4 due to their provider having put 
them behind the worst CGN on the planet.

Owen

On Jul 10, 2015, at 15:08 , Mel Beckman <mel () beckman org> wrote:

There is most certainly a cost to IPv6, especially in a large, complex deployment, where everything requires 
acceptance testing. And I'm sure you realize that IPv6 only is not an option.  I agree that it would have been worth 
the cost, which would have been just a small fraction of the total. The powers that be chose not to incur it now. But 
we did deploy only IPv6 gear and systems, so it can probably be turned up later for that same incremental cost. 

-mel via cell

On Jul 10, 2015, at 3:03 PM, Mark Andrews <marka () isc org> wrote:


In message <A24F7CF2-0CD8-4EBA-A211-07BC36988A87 () beckman org>, Mel Beckman writ
es:
Limited municipal budgets is all I can say. IPv6 has a cost, and if they
can put it off till later then that's often good politics.

-mel via cell

IPv4 has a cost as well.  May as well just go IPv6-only from day one and
not pay the IPv4 tax at all.

The cost difference between providing IPv6 + IPv4 or just IPv4 from
day 1 should be zero.  There should be no re-tooling.  You just
select products that support both initially.  It's not like products
that support both are more expensive all other things being equal.

Mark

On Jul 10, 2015, at 2:42 PM, Mark Andrews <marka () isc org> wrote:


In message
<CAL9jLabA5nO6YQ99CRhDgRTHTSB0VgP3GDNeu-VU2-4R_1_pLQ () mail gmail com>
, Christopher Morrow writes:
On Thu, Jul 9, 2015 at 11:04 AM, Mel Beckman <mel () beckman org> wrote:
I working on a large airport WiFi deployment right now. IPv6 is
"allowed =
for in the future" but not configured in the short term. With less
than 10,=
000 ephemeral users, we don't expect users to demand IPv6 until most
mobile=
devices and apps come ready to use IPv6 by default.

'we don't expect users to demand ipv6'

aside from #nanog folks, who 'demands' ipv6?

Don't they actually 'demand' "access to content on the internet" ?

Since you seem to have a greenfield deployment, why NOT just put v6 in
place on day0? retrofitting it is surely going to cost time/materials
and probably upgrades to gear that could be avoided by doing it in the
initial installation, right?

+1 and you will most probably see about 50% of the traffic being IPv6 if
you do so.  There is lots of IPv6 capable equipment out there just
waiting
to see a RA.

Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka () isc org

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka () isc org


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