Re: Disable IPv6 ? -- MIDRANGE-L

IPv6 is here, now. In 5 - 10 years it is very like that IPv4 users will
be small minority, and regarded as "old technology", its users will be
almost forced to migrate. At a more expensive cost, and leaving behind
the people that did not learned it.

I can not see the future, but I began this tread when I read the news
about more people reaching FB from IPv6 than from IPv4. That is only a
sample, at a global level, according to Google, IPv6 accounts for 13 %
of users, small, but growing faster every month. You can see the graph
at www.google.com/intl/en/ipv6/statistics.html That grow rate will
probably "flatten out" after it reaches 70 or 80% because there are
always people that resist changes. I myself still use IPv4.

How deep is IPv6 in the i OS? Can you still use IPv4 or is all IPv6 and
translated for outside view? I did this test (V7.3):

CRTDDMF FILE(QTEMP/TEST) RMTFILE(QGPL/TEST) RMTLOCNAME('10.0.0.8' *IP)
dspfd test

In the description//I found/:

/Archivo remoto . . . . . . . . . . . . . . : RMTFILE 'QGPL/TEST'
Ubicación remota RMTLOCNAME
Nombre o dirección . . . . . . . . . . . : '::FFFF:10.0.0.8'
Tipo . . . . . . . . . . . . . . . . . . : *IP
/
/My IPv4 address is automatically translated and stored in the file
description as the IPv6 equivalent. why?

On 08/18/2016 12:15 PM, Steinmetz, Paul wrote:

+1.
Our major 3rd party apps don't even support IPv6.
The config files only allow an IPv4 address.

Many other related issues.

IPv6 at least 5 to 10 years away.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Rob Berendt
Sent: Thursday, August 18, 2016 11:12 AM
To: Midrange Systems Technical Discussion
Subject: Re: Disable IPv6 ?

I did a little searching and I'm not finding anything saying anything like "device xyz will no longer support IPv4 after such-and-such a date".

Again, I'm all for keeping current but is there really a reason to upgrade an internal network to IPv6? Something strong enough to convince even our network consultant (who still carries a flip phone) that it needs to be done?

Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600 Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com

From: Raul A Jager W <raul@xxxxxxxxxx>
To: midrange-l@xxxxxxxxxxxx
Date: 08/18/2016 10:38 AM
Subject: Re: Disable IPv6 ?
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>

I was surprised by your opinion, since you are one of the more reliable
references in Midrange.

Having an important application that does not support IPv6 is a reason
to disable it, but that is not a general rule, and it is very likely
that a newer version will work fine with IPv6.

Respect to the "inside network" other advise is to use IPv6 only, and
translate to IPv4 in the edge devices if your ISP provider is IPv4 only,
or leave to the ISP to do the translation.

On 08/18/2016 08:51 AM, DrFranken wrote:

Well for one if you run ZendServer and their MySql it will randomly
just quit if IPV6 is running so that is a bad thing. Other services
also don't work without specific configuration when IPV6 is enabled.
Inside your network do you really need IPV6? Most do not.

- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 8/18/2016 1:24 AM, Kevin Adler wrote:

What's the point of enabling IPv6 on your edge devices if you disable

it

on IBM i? So your Linux and Windows systems can use it? I suppose if
your
IBM i is not able to be reached from the internet, that's a reasonable
recommendation, though.

"MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx> wrote on 08/17/2016
07:05:55 PM:

From: DrFranken <midrange@xxxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>,
"Web Enabling the IBM i (AS/400 and iSeries)" <web400@xxxxxxxxxxxx>
Date: 08/17/2016 07:06 PM
Subject: Re: Disable IPv6 ?
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>

Remember that most of those recommendations are to disable IPV6 on
IBM i
for local use. This is not the same as disabling IPV6 on your edge
devices such as routers or firewalls. Completely different animal.

As far as I am concerned this recommendation still applies.

- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 8/17/2016 5:34 PM, Raul A Jager W wrote:

In this list I have seen several times advise to disable IPv6 as
solution to slow network. Not lately, but at that time I replied that

it

seems to me a very bad advise.

Today there was a "first" for IPv6, see:

https://twitter.com/yogurtboy/status/765808619434704897

Pay special attention to Michael W Lucas' comment...

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