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From: Lee Howard <Lee@asgard.org>
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Subject: [sunset4] Sunset4 work
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> This message is in MIME format. Since your mail reader does not understand
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After the last WG meeting, I walked away with seven things that I thought we needed to do:

Update my v4historic draft. I intend to do this in time for the Seoul meeting.
Phillip Hallam-Baker suggested something like "draft-baker-ipv4status-its-complicated." I would like to hear more about this, and read a draft.
The IAB should tell partner SDOs that their work should support IPv6. We're working on this, and should have an update before the meeting.
The IESG or IETF community should squelch IPv4-only charters. I think the IESG would rather see a community statement, so we're hoping for a draft in the next couple of weeks.
WG Chairs and IETF communicty looks for IPv4 literals, IPv4-only examples, IPv4 dependencies, and clean them up. Does anyone see a way to structure this, or is there no followup to be had here?
Run IPv6+NAT64 as the default IETF SSID. I've discussed with Jari and Jim, and they're only reluctant if doing this impedes participants getting work done. Does anyone have any ideas for how to show this? Volunteers?
Update id-nits checked to look for IPv4-only examples. Done!
I therefore think there's enough work to justify a meeting in Seoul, and have said so to the WG chairs. 

On this list, I'd like to hear ideas about how to structure work/followup on #5 and #6. 

Are there other topics we should discuss?

Thanks,

Lee



--B_3558611024_1671869391
Content-type: text/html;
	charset="UTF-8"
Content-transfer-encoding: quoted-printable

<html><head></head><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: s=
pace; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size:=
 14px; font-family: Calibri, sans-serif;"><div>After the last WG meeting, I =
walked away with seven things that I thought we needed to do:</div><div><br>=
</div><ol><li>Update my v4historic draft. I intend to do this in time for th=
e Seoul meeting.</li><li>Phillip Hallam-Baker suggested something like "draf=
t-baker-ipv4status-its-complicated." I would like to hear more about this, a=
nd read a draft.</li><li>The IAB should tell partner SDOs that their work sh=
ould support IPv6. We're working on this, and should have an update before t=
he meeting.</li><li>The IESG or IETF community should squelch IPv4-only char=
ters. I think the IESG would rather see a community statement, so we're hopi=
ng for a draft in the next couple of weeks.</li><li>WG Chairs and IETF commu=
nicty looks for IPv4 literals, IPv4-only examples, IPv4 dependencies, and cl=
ean them up. Does anyone see a way to structure this, or is there no followu=
p to be had here?</li><li>Run IPv6+NAT64 as the default IETF SSID. I've disc=
ussed with Jari and Jim, and they're only reluctant if doing this impedes pa=
rticipants getting work done. Does anyone have any ideas for how to show thi=
s? Volunteers?</li><li>Update id-nits checked to look for IPv4-only examples=
. Done!</li></ol><div>I therefore think there's enough work to justify a mee=
ting in Seoul, and have said so to the WG chairs.&nbsp;</div><div><br></div>=
<div>On this list, I'd like to hear ideas about how to structure work/follow=
up on #5 and #6.&nbsp;</div><div><br></div><div>Are there other topics we sh=
ould discuss?</div><div><br></div><div>Thanks,</div><div><br></div><div>Lee<=
/div><div><br></div><div><div><div id=3D"MAC_OUTLOOK_SIGNATURE"></div></div></=
div></body></html>

--B_3558611024_1671869391--



From nobody Thu Oct  6 12:13:07 2016
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From: "Marc Blanchet" <marc.blanchet@viagenie.ca>
To: "Lee Howard" <Lee@asgard.org>
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On 6 Oct 2016, at 15:03, Lee Howard wrote:

> Run IPv6+NAT64 as the default IETF SSID. I've discussed with Jari and 
> Jim, and they're only reluctant if doing this impedes participants 
> getting work done. Does anyone have any ideas for how to show this? 
> Volunteers?

I would suggest to have the IETF Chair to take a humm on this during the 
plenary.

Marc.

>
> On this list, I'd like to hear ideas about how to structure 
> work/followup on #5 and #6.
>
> Are there other topics we should discuss?
>
> Thanks,
>
> Lee


> _______________________________________________
> sunset4 mailing list
> sunset4@ietf.org
> https://www.ietf.org/mailman/listinfo/sunset4


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From: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
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Despite how much I like all those ideas, I don't think we are ready to have=
 an IPv6-only IETF network.

Unfortunately, there are many applications, VPNs, etc., which will not work=
 just with NAT64, because literals, etc.

I will suggest something alternative at this stage:

Having the IETF network as a typical SME or residential customer of an ISP =
which has run out of IPv4 addresses, provides an IPv6-only WAN link and use=
s CLAT (464XLAT) at the customer CPE.

This means having GUA addresses but only private IPv4 address, and having a=
 router behaving as the IETF network =E2=80=9CCPE=E2=80=9D supporting CLAT.

Of course we still need the NAT64+DNS64.

This way, we will have a high proportion of IPv6 traffic and we can take so=
me measurements about =E2=80=9Cwhat=E2=80=9D apps and Internet end-points a=
re still using the NAT64/DNS64, and what apps are using the CLAT and we can=
 also have the secretariat or ISOC to make sure to talk with those organiza=
tions to let know them that they have a problem =E2=80=A6


Saludos,
Jordi


-----Mensaje original-----
De: sunset4 <sunset4-bounces@ietf.org> en nombre de Lee Howard <Lee@asgard.=
org>
Responder a: <Lee@asgard.org>
Fecha: jueves, 6 de octubre de 2016, 21:03
Para: <sunset4@ietf.org>
Asunto: [sunset4] Sunset4 work

    After the last WG meeting, I walked away with seven things that I thoug=
ht we needed to do:
   =20
   =20
    1. Update my v4historic draft. I intend to do this in time for the Seou=
l meeting.
    2. Phillip Hallam-Baker suggested something like "draft-baker-ipv4statu=
s-its-complicated." I would like to hear more about this, and read a draft.
    3. The IAB should tell partner SDOs that their work should support IPv6=
. We're working on this, and should have an update before the meeting.
    4. The IESG or IETF community should squelch IPv4-only charters. I thin=
k the IESG would rather see a community statement, so we're hoping for a dr=
aft in the next couple of weeks.
    5. WG Chairs and IETF communicty looks for IPv4 literals, IPv4-only exa=
mples, IPv4 dependencies, and clean them up. Does anyone see a way to struc=
ture this, or is there no followup to be had here?
    6. Run IPv6+NAT64 as the default IETF SSID. I've discussed with Jari an=
d Jim, and they're only reluctant if doing this impedes participants gettin=
g work done. Does anyone have any ideas for how to show this? Volunteers?
    7. Update id-nits checked to look for IPv4-only examples. Done!
   =20
    I therefore think there's enough work to justify a meeting in Seoul, an=
d have said so to the WG chairs.=20
   =20
    On this list, I'd like to hear ideas about how to structure work/follow=
up on #5 and #6.=20
   =20
    Are there other topics we should discuss?
   =20
    Thanks,
   =20
    Lee
   =20
   =20
   =20
    _______________________________________________
    sunset4 mailing list
    sunset4@ietf.org
    https://www.ietf.org/mailman/listinfo/sunset4
   =20



**********************************************
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From nobody Thu Oct  6 13:22:22 2016
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From: Lee Howard <Lee@asgard.org>
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On 10/6/16, 3:30 PM, "sunset4 on behalf of JORDI PALET MARTINEZ" <sunset4-b=
ounces@ietf.org on behalf of jordi.palet@consulintel.es> wrote:

>Despite how much I like all those ideas, I don't think we are ready to hav=
e an IPv6-only IETF network.
>
>Unfortunately, there are many applications, VPNs, etc., which will not wor=
k just with NAT64, because literals, etc.

Can you make a list?
Or, can we start a list, and have people add things to it at the next meeti=
ng, so we can work to resolve them by the following meeting?


>
>I will suggest something alternative at this stage:
>
>Having the IETF network as a typical SME or residential customer of an ISP=
 which has run out of IPv4 addresses, provides an IPv6-only WAN link and use=
s CLAT (464XLAT) at the customer CPE.

How well-tested is that in laptop environments? The only deployments I know=
 of are on mobile networks, which have a different set of applications and p=
rotocols using them. Do you know of others?

>
>This means having GUA addresses but only private IPv4 address, and having =
a router behaving as the IETF network =E2=80=9CCPE=E2=80=9D supporting CLAT.
>
>Of course we still need the NAT64+DNS64.
>
>This way, we will have a high proportion of IPv6 traffic and we can take s=
ome measurements about =E2=80=9Cwhat=E2=80=9D apps and Internet end-points are still usi=
ng the NAT64/DNS64, and what apps are using the CLAT and we can also have th=
e secretariat or ISOC to make sure to talk with those organizations to let k=
now them that they have a problem =E2=80=A6

Do you mean NAT64 on a different SSID as the 464xlat? I'm confused.

Lee

>
>
>Saludos,
>Jordi
>
>
>-----Mensaje original-----
>De: sunset4 <sunset4-bounces@ietf.org> en nombre de Lee Howard <Lee@asgard=
.org>
>Responder a: <Lee@asgard.org>
>Fecha: jueves, 6 de octubre de 2016, 21:03
>Para: <sunset4@ietf.org>
>Asunto: [sunset4] Sunset4 work
>
>    After the last WG meeting, I walked away with seven things that I thou=
ght we needed to do:
>   =20
>   =20
>    1. Update my v4historic draft. I intend to do this in time for the Seo=
ul meeting.
>    2. Phillip Hallam-Baker suggested something like "draft-baker-ipv4stat=
us-its-complicated." I would like to hear more about this, and read a draft.
>    3. The IAB should tell partner SDOs that their work should support IPv=
6. We're working on this, and should have an update before the meeting.
>    4. The IESG or IETF community should squelch IPv4-only charters. I thi=
nk the IESG would rather see a community statement, so we're hoping for a dr=
aft in the next couple of weeks.
>    5. WG Chairs and IETF communicty looks for IPv4 literals, IPv4-only ex=
amples, IPv4 dependencies, and clean them up. Does anyone see a way to struc=
ture this, or is there no followup to be had here?
>    6. Run IPv6+NAT64 as the default IETF SSID. I've discussed with Jari a=
nd Jim, and they're only reluctant if doing this impedes participants gettin=
g work done. Does anyone have any ideas for how to show this? Volunteers?
>    7. Update id-nits checked to look for IPv4-only examples. Done!
>   =20
>    I therefore think there's enough work to justify a meeting in Seoul, a=
nd have said so to the WG chairs.=20
>   =20
>    On this list, I'd like to hear ideas about how to structure work/follo=
wup on #5 and #6.=20
>   =20
>    Are there other topics we should discuss?
>   =20
>    Thanks,
>   =20
>    Lee
>   =20
>   =20
>   =20
>    _______________________________________________
>    sunset4 mailing list
>    sunset4@ietf.org
>    https://www.ietf.org/mailman/listinfo/sunset4
>   =20
>
>
>
>**********************************************
>IPv4 is over
>Are you ready for the new Internet ?
>http://www.consulintel.es
>The IPv6 Company
>
>This electronic message contains information which may be privileged or co=
nfidential. The information is intended to be for the use of the individual(=
s) named above. If you are not the intended recipient be aware that any disc=
losure, copying, distribution or use of the contents of this information, in=
cluding attached files, is prohibited.
>
>
>
>_______________________________________________
>sunset4 mailing list
>sunset4@ietf.org
>https://www.ietf.org/mailman/listinfo/sunset4


From nobody Thu Oct  6 13:35:42 2016
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From: "Marc Blanchet" <marc.blanchet@viagenie.ca>
To: "Lee Howard" <Lee@asgard.org>
Date: Thu, 06 Oct 2016 16:35:36 -0400
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Subject: Re: [sunset4] Sunset4 work
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On 6 Oct 2016, at 16:22, Lee Howard wrote:

>
> On 10/6/16, 3:30 PM, "sunset4 on behalf of JORDI PALET MARTINEZ" 
> <sunset4-bounces@ietf.org on behalf of jordi.palet@consulintel.es> 
> wrote:
>
>> Despite how much I like all those ideas, I don't think we are ready 
>> to have an IPv6-only IETF network.
>>
>> Unfortunately, there are many applications, VPNs, etc., which will 
>> not work just with NAT64, because literals, etc.
>
> Can you make a list?

I created a link to create a page on the wg trac: 
https://tools.ietf.org/wg/sunset4/trac/wiki.  Click on the link and it 
will create a new wiki page so people can put data. You need to login in 
before with your ietf credentials.

However, (speaking as individual), I’m not sure we want to start that 
endeavour. Others have tried in the past and it is more complicated than 
it appears.

marc.

> Or, can we start a list, and have people add things to it at the next 
> meeting, so we can work to resolve them by the following meeting?

>
>>
>> I will suggest something alternative at this stage:
>>
>> Having the IETF network as a typical SME or residential customer of 
>> an ISP which has run out of IPv4 addresses, provides an IPv6-only WAN 
>> link and uses CLAT (464XLAT) at the customer CPE.
>
> How well-tested is that in laptop environments? The only deployments I 
> know of are on mobile networks, which have a different set of 
> applications and protocols using them. Do you know of others?
>
>>
>> This means having GUA addresses but only private IPv4 address, and 
>> having a router behaving as the IETF network “CPE” supporting 
>> CLAT.
>>
>> Of course we still need the NAT64+DNS64.
>>
>> This way, we will have a high proportion of IPv6 traffic and we can 
>> take some measurements about “what” apps and Internet end-points 
>> are still using the NAT64/DNS64, and what apps are using the CLAT and 
>> we can also have the secretariat or ISOC to make sure to talk with 
>> those organizations to let know them that they have a problem …
>
> Do you mean NAT64 on a different SSID as the 464xlat? I'm confused.
>
> Lee
>
>>
>>
>> Saludos,
>> Jordi
>>
>>
>> -----Mensaje original-----
>> De: sunset4 <sunset4-bounces@ietf.org> en nombre de Lee Howard 
>> <Lee@asgard.org>
>> Responder a: <Lee@asgard.org>
>> Fecha: jueves, 6 de octubre de 2016, 21:03
>> Para: <sunset4@ietf.org>
>> Asunto: [sunset4] Sunset4 work
>>
>>    After the last WG meeting, I walked away with seven things that I 
>> thought we needed to do:
>>
>>
>>    1. Update my v4historic draft. I intend to do this in time for the 
>> Seoul meeting.
>>    2. Phillip Hallam-Baker suggested something like 
>> "draft-baker-ipv4status-its-complicated." I would like to hear more 
>> about this, and read a draft.
>>    3. The IAB should tell partner SDOs that their work should support 
>> IPv6. We're working on this, and should have an update before the 
>> meeting.
>>    4. The IESG or IETF community should squelch IPv4-only charters. I 
>> think the IESG would rather see a community statement, so we're 
>> hoping for a draft in the next couple of weeks.
>>    5. WG Chairs and IETF communicty looks for IPv4 literals, 
>> IPv4-only examples, IPv4 dependencies, and clean them up. Does anyone 
>> see a way to structure this, or is there no followup to be had here?
>>    6. Run IPv6+NAT64 as the default IETF SSID. I've discussed with 
>> Jari and Jim, and they're only reluctant if doing this impedes 
>> participants getting work done. Does anyone have any ideas for how to 
>> show this? Volunteers?
>>    7. Update id-nits checked to look for IPv4-only examples. Done!
>>
>>    I therefore think there's enough work to justify a meeting in 
>> Seoul, and have said so to the WG chairs.
>>
>>    On this list, I'd like to hear ideas about how to structure 
>> work/followup on #5 and #6.
>>
>>    Are there other topics we should discuss?
>>
>>    Thanks,
>>
>>    Lee
>>
>>
>>
>>    _______________________________________________
>>    sunset4 mailing list
>>    sunset4@ietf.org
>>    https://www.ietf.org/mailman/listinfo/sunset4
>>
>>
>>
>>
>> **********************************************
>> IPv4 is over
>> Are you ready for the new Internet ?
>> http://www.consulintel.es
>> The IPv6 Company
>>
>> This electronic message contains information which may be privileged 
>> or confidential. The information is intended to be for the use of the 
>> individual(s) named above. If you are not the intended recipient be 
>> aware that any disclosure, copying, distribution or use of the 
>> contents of this information, including attached files, is 
>> prohibited.
>>
>>
>>
>> _______________________________________________
>> sunset4 mailing list
>> sunset4@ietf.org
>> https://www.ietf.org/mailman/listinfo/sunset4
>
> _______________________________________________
> sunset4 mailing list
> sunset4@ietf.org
> https://www.ietf.org/mailman/listinfo/sunset4


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From: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
To: <Lee@asgard.org>, <sunset4@ietf.org>
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=20
    On 10/6/16, 3:30 PM, "sunset4 on behalf of JORDI PALET MARTINEZ" <sunse=
t4-bounces@ietf.org on behalf of jordi.palet@consulintel.es> wrote:
   =20
    >Despite how much I like all those ideas, I don't think we are ready to=
 have an IPv6-only IETF network.
    >
    >Unfortunately, there are many applications, VPNs, etc., which will not=
 work just with NAT64, because literals, etc.
   =20
    Can you make a list?
    Or, can we start a list, and have people add things to it at the next m=
eeting, so we can work to resolve them by the following meeting?
   =20
   =20
The idea is not to create a list, on the other way around, is to use our =
=E2=80=9Cbehaviour=E2=80=9D to discover what are the apps or destinations t=
hat we use and don=E2=80=99t support IPv6, to create the =E2=80=9Clist=E2=
=80=9D automatically.

We just need some kind of logging of everything using the DNS64 or the CLAT=
, which means is not IPv6 enabled.

    >
    >I will suggest something alternative at this stage:
    >
    >Having the IETF network as a typical SME or residential customer of an=
 ISP which has run out of IPv4 addresses, provides an IPv6-only WAN link an=
d uses CLAT (464XLAT) at the customer CPE.
   =20
    How well-tested is that in laptop environments? The only deployments I =
know of are on mobile networks, which have a different set of applications =
and protocols using them. Do you know of others?

I recall having seen and OpenWRT implementation, and some Japanese CPEs. I=
=E2=80=99m sure there are many others.
   =20
    >
    >This means having GUA addresses but only private IPv4 address, and hav=
ing a router behaving as the IETF network =E2=80=9CCPE=E2=80=9D supporting =
CLAT.
    >
    >Of course we still need the NAT64+DNS64.
    >
    >This way, we will have a high proportion of IPv6 traffic and we can ta=
ke some measurements about =E2=80=9Cwhat=E2=80=9D apps and Internet end-poi=
nts are still using the NAT64/DNS64, and what apps are using the CLAT and w=
e can also have the secretariat or ISOC to make sure to talk with those org=
anizations to let know them that they have a problem =E2=80=A6
   =20
    Do you mean NAT64 on a different SSID as the 464xlat? I'm confused.
  =20
Just a single SSID. 464XLAT is two folds, NAT64/DNS64 on the =E2=80=9CISP=
=E2=80=9D side, and CLAT on the CE or CPE.

So you have 3 possible cases of =E2=80=9Capps=E2=80=9D:
Basically, whatever in the IETF network is able to use IPv6 end-to-end, wil=
l pass thru directly.
If something is using DNS, then it will use the NAT64/DNS64 (single transla=
tion 6->4 at the network).
Whatever is using literals, will use both the CLAT (translation4->6 at the =
CPE), and then translation at the NAT64 (4->6)
=20
    Lee
   =20
    >
    >
    >Saludos,
    >Jordi
    >
    >
    >-----Mensaje original-----
    >De: sunset4 <sunset4-bounces@ietf.org> en nombre de Lee Howard <Lee@as=
gard.org>
    >Responder a: <Lee@asgard.org>
    >Fecha: jueves, 6 de octubre de 2016, 21:03
    >Para: <sunset4@ietf.org>
    >Asunto: [sunset4] Sunset4 work
    >
    >    After the last WG meeting, I walked away with seven things that I =
thought we needed to do:
    >   =20
    >   =20
    >    1. Update my v4historic draft. I intend to do this in time for the=
 Seoul meeting.
    >    2. Phillip Hallam-Baker suggested something like "draft-baker-ipv4=
status-its-complicated." I would like to hear more about this, and read a d=
raft.
    >    3. The IAB should tell partner SDOs that their work should support=
 IPv6. We're working on this, and should have an update before the meeting.
    >    4. The IESG or IETF community should squelch IPv4-only charters. I=
 think the IESG would rather see a community statement, so we're hoping for=
 a draft in the next couple of weeks.
    >    5. WG Chairs and IETF communicty looks for IPv4 literals, IPv4-onl=
y examples, IPv4 dependencies, and clean them up. Does anyone see a way to =
structure this, or is there no followup to be had here?
    >    6. Run IPv6+NAT64 as the default IETF SSID. I've discussed with Ja=
ri and Jim, and they're only reluctant if doing this impedes participants g=
etting work done. Does anyone have any ideas for how to show this? Voluntee=
rs?
    >    7. Update id-nits checked to look for IPv4-only examples. Done!
    >   =20
    >    I therefore think there's enough work to justify a meeting in Seou=
l, and have said so to the WG chairs.=20
    >   =20
    >    On this list, I'd like to hear ideas about how to structure work/f=
ollowup on #5 and #6.=20
    >   =20
    >    Are there other topics we should discuss?
    >   =20
    >    Thanks,
    >   =20
    >    Lee
    >   =20
    >   =20
    >   =20
    >    _______________________________________________
    >    sunset4 mailing list
    >    sunset4@ietf.org
    >    https://www.ietf.org/mailman/listinfo/sunset4
    >   =20
    >
    >
    >
    >**********************************************
    >IPv4 is over
    >Are you ready for the new Internet ?
    >http://www.consulintel.es
    >The IPv6 Company
    >
    >This electronic message contains information which may be privileged o=
r confidential. The information is intended to be for the use of the indivi=
dual(s) named above. If you are not the intended recipient be aware that an=
y disclosure, copying, distribution or use of the contents of this informat=
ion, including attached files, is prohibited.
    >
    >
    >
    >_______________________________________________
    >sunset4 mailing list
    >sunset4@ietf.org
    >https://www.ietf.org/mailman/listinfo/sunset4
   =20
    _______________________________________________
    sunset4 mailing list
    sunset4@ietf.org
    https://www.ietf.org/mailman/listinfo/sunset4
   =20



**********************************************
IPv4 is over
Are you ready for the new Internet ?
http://www.consulintel.es
The IPv6 Company

This electronic message contains information which may be privileged or con=
fidential. The information is intended to be for the use of the individual(=
s) named above. If you are not the intended recipient be aware that any dis=
closure, copying, distribution or use of the contents of this information, =
including attached files, is prohibited.




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From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
To: sunset4@ietf.org
Date: Thu, 06 Oct 2016 23:28:32 +0000
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Subject: Re: [sunset4] Sunset4 work
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On 6 Oct 2016, at 21:16, JORDI PALET MARTINEZ wrote:

>
>     On 10/6/16, 3:30 PM, "sunset4 on behalf of JORDI PALET MARTINEZ" 
> <sunset4-bounces@ietf.org on behalf of jordi.palet@consulintel.es> 
> wrote:
>
>     >Despite how much I like all those ideas, I don't think we are 
> ready to have an IPv6-only IETF network.
>     >
>     >Unfortunately, there are many applications, VPNs, etc., which 
> will not work just with NAT64, because literals, etc.
>
>     Can you make a list?
>     Or, can we start a list, and have people add things to it at the 
> next meeting, so we can work to resolve them by the following meeting?
>
> The idea is not to create a list, on the other way around, is to use 
> our “behaviour” to discover what are the apps or destinations that 
> we use and don’t support IPv6, to create the “list” 
> automatically.
>
> We just need some kind of logging of everything using the DNS64 or the 
> CLAT, which means is not IPv6 enabled.

Nastygram.  So make the default IETF SSIDs IPv6-only or (+NAT64) if you 
want.  Then have the ietf-legacy network, which would give you IPv4 and 
a portal page “penalty” that you have to state the nature why you 
have to use this network and can’t live on the default one.   I’d be 
so curious to see what happens when people finally have to start 
thinking about it.. and open internal tickets ..  It was great fun doing 
it 6-ish years ago, ..

/bz


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To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
From: Mark Andrews <marka@isc.org>
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In-reply-to: Your message of "Thu, 06 Oct 2016 23:28:32 -0000." <8C661EDC-4D87-4CB6-9C42-24BF5B0DD805@lists.zabbadoz.net>
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Subject: Re: [sunset4] Sunset4 work
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I would do this for all the mechanisms we have designed to provide
IPv4 over IPv6 with a new one each meeting (I would suggest switching
each day of the meeting but I suspect Jim would kill me).

e.g. DS-LITE, MAP-*

For DS-LITE I would even suggest that we do DS-LITE host mode at
the end.

Mark

In message <8C661EDC-4D87-4CB6-9C42-24BF5B0DD805@lists.zabbadoz.net>, "Bjoern A
. Zeeb" writes:
> On 6 Oct 2016, at 21:16, JORDI PALET MARTINEZ wrote:
>
> >
> >     On 10/6/16, 3:30 PM, "sunset4 on behalf of JORDI PALET MARTINEZ"
> > <sunset4-bounces@ietf.org on behalf of jordi.palet@consulintel.es>
> > wrote:
> >
> >     >Despite how much I like all those ideas, I don't think we are
> > ready to have an IPv6-only IETF network.
> >     >
> >     >Unfortunately, there are many applications, VPNs, etc., which
> > will not work just with NAT64, because literals, etc.
> >
> >     Can you make a list?
> >     Or, can we start a list, and have people add things to it at the
> > next meeting, so we can work to resolve them by the following meeting?
> >
> > The idea is not to create a list, on the other way around, is to use
> > our behaviour to discover what are the apps or destinations that
> > we use and dont support IPv6, to create the list
> > automatically.
> >
> > We just need some kind of logging of everything using the DNS64 or the
> > CLAT, which means is not IPv6 enabled.
>
> Nastygram.  So make the default IETF SSIDs IPv6-only or (+NAT64) if you
> want.  Then have the ietf-legacy network, which would give you IPv4 and
> a portal page penalty that you have to state the nature why you
> have to use this network and cant live on the default one.   Id be
> so curious to see what happens when people finally have to start
> thinking about it.. and open internal tickets ..  It was great fun doing
> it 6-ish years ago, ..
>
> /bz
>
> _______________________________________________
> sunset4 mailing list
> sunset4@ietf.org
> https://www.ietf.org/mailman/listinfo/sunset4

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


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In your letter dated Thu, 06 Oct 2016 23:28:32 +0000 you wrote:
> Nastygram.  So make the default IETF SSIDs IPv6-only or (+NAT64)
> if you want.  Then have the ietf-legacy network, which would give
> you IPv4 and a portal page penalty that you have to state the nature
> why you have to use this network and cant live on the default one.
> Id be so curious to see what happens when people finally have to
> start thinking about it.. and open internal tickets ..  It was
> great fun doing it 6-ish years ago, ..

Personally, I consider offering NAT64 over wifi quite absurd. The obvious
way to provide access to legacy IPv4 is some form of NAT4. How it is 
transported over the rest of the network is upto the network operator. But
the obvious interface is RFC 894.

So on networks that promote NAT64 (FOSDEM has this setup for quite a number of
years now) I just connect to the legacy network. Their legacy network has
perfectly fine IPv6, so I consider it way better than the NAT64 that
'everybody' likes to push.

For the specific mobile weirdness, NAT64 make sense. But everywhere else,
requiring every device to have 464xlat to deal with IPv4 literals is just
bad engineering. If your backbone is IPv6-only, then the obvious solution
is to deal with this in CPEs, wifi access points, etc. Not to require all
hosts to know the details of your network.



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From: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
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This is what I=E2=80=99m proposing. May be I miss explained it.

NOT asking EVERY device in our network to HAVE 464XLAT client (CLAT), but h=
aving ONLY our =E2=80=9CCPE=E2=80=9D to have it.

Nodes will not notice anything.

This is what is going to happen in the future in most of the networks becau=
se they will not have IPv4 for every customer, so why not trying it ourselv=
es? Already happening in many cellular networks, like in US, which are clos=
e to have 60% IPv6 traffic already.

Saludos,
Jordi


-----Mensaje original-----
De: sunset4 <sunset4-bounces@ietf.org> en nombre de Philip Homburg <pch-sun=
set4-1@u-1.phicoh.com>
Responder a: <pch-sunset4-1@u-1.phicoh.com>
Fecha: viernes, 7 de octubre de 2016, 12:04
Para: <sunset4@ietf.org>
CC: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
Asunto: Re: [sunset4] Sunset4 work

    In your letter dated Thu, 06 Oct 2016 23:28:32 +0000 you wrote:
    > Nastygram.  So make the default IETF SSIDs IPv6-only or (+NAT64)
    > if you want.  Then have the ietf-legacy network, which would give
    > you IPv4 and a portal page penalty that you have to state the nature
    > why you have to use this network and cant live on the default one.
    > Id be so curious to see what happens when people finally have to
    > start thinking about it.. and open internal tickets ..  It was
    > great fun doing it 6-ish years ago, ..
   =20
    Personally, I consider offering NAT64 over wifi quite absurd. The obvio=
us
    way to provide access to legacy IPv4 is some form of NAT4. How it is=20
    transported over the rest of the network is upto the network operator. =
But
    the obvious interface is RFC 894.
   =20
    So on networks that promote NAT64 (FOSDEM has this setup for quite a nu=
mber of
    years now) I just connect to the legacy network. Their legacy network h=
as
    perfectly fine IPv6, so I consider it way better than the NAT64 that
    'everybody' likes to push.
   =20
    For the specific mobile weirdness, NAT64 make sense. But everywhere els=
e,
    requiring every device to have 464xlat to deal with IPv4 literals is ju=
st
    bad engineering. If your backbone is IPv6-only, then the obvious soluti=
on
    is to deal with this in CPEs, wifi access points, etc. Not to require a=
ll
    hosts to know the details of your network.
   =20
   =20
    _______________________________________________
    sunset4 mailing list
    sunset4@ietf.org
    https://www.ietf.org/mailman/listinfo/sunset4
   =20
   =20



**********************************************
IPv4 is over
Are you ready for the new Internet ?
http://www.consulintel.es
The IPv6 Company

This electronic message contains information which may be privileged or con=
fidential. The information is intended to be for the use of the individual(=
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From: Lee Howard <Lee@asgard.org>
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Subject: Re: [sunset4] Sunset4 work
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On 10/7/16, 6:04 AM, "sunset4 on behalf of Philip Homburg" <sunset4-bounces@ietf.org on behalf of pch-sunset4-1@u-1.phicoh.com> wrote:

>In your letter dated Thu, 06 Oct 2016 23:28:32 +0000 you wrote:
>> Nastygram.  So make the default IETF SSIDs IPv6-only or (+NAT64)
>> if you want.  Then have the ietf-legacy network, which would give
>> you IPv4 and a portal page penalty that you have to state the nature
>> why you have to use this network and cant live on the default one.
>> Id be so curious to see what happens when people finally have to
>> start thinking about it.. and open internal tickets ..  It was
>> great fun doing it 6-ish years ago, ..
>
>Personally, I consider offering NAT64 over wifi quite absurd. The obvious
>way to provide access to legacy IPv4 is some form of NAT4. How it is 
>transported over the rest of the network is upto the network operator. But
>the obvious interface is RFC 894.

We should do what we can to get ahead of the transition, noting what applications break, improving our experience with transition mechanisms, or whatever we can to make the transition smoother for the rest of the Internet. The fact that there is an IPv4 assignment to the IETF network does not mean other networks also have one, and we need to get ahead of what others will experience on their networks.


>
>So on networks that promote NAT64 (FOSDEM has this setup for quite a number of
>years now) I just connect to the legacy network. Their legacy network has
>perfectly fine IPv6, so I consider it way better than the NAT64 that
>'everybody' likes to push.

The ietf-legacy SSID would still be evailable.

>
>For the specific mobile weirdness, NAT64 make sense. But everywhere else,
>requiring every device to have 464xlat to deal with IPv4 literals is just
>bad engineering. If your backbone is IPv6-only, then the obvious solution
>is to deal with this in CPEs, wifi access points, etc. Not to require all
>hosts to know the details of your network.

I mostly agree. Hosts (and users) shouldn't have to know what's going on.
But the use of IPv4 literals is bad engineering; the fact that hacks are required to make it work is inherent.
A lack of IPv6 support is abdication by application developers. 

Lee



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On 10/7/16, 6:27 AM, "sunset4 on behalf of JORDI PALET MARTINEZ" <sunset4-b=
ounces@ietf.org on behalf of jordi.palet@consulintel.es> wrote:

>This is what I=E2=80=99m proposing. May be I miss explained it.
>
>NOT asking EVERY device in our network to HAVE 464XLAT client (CLAT), but =
having ONLY our =E2=80=9CCPE=E2=80=9D to have it.
>
>Nodes will not notice anything.
>
>This is what is going to happen in the future in most of the networks beca=
use they will not have IPv4 for every customer, so why not trying it ourselv=
es? Already happening in many cellular networks, like in US, which are close=
 to have 60% IPv6 traffic already.

You think 464xlat is what's going to happen in the future in most networks?
Mobile networks, yes, it's a primary transition mechanisms.
Wi-fi networks operated by ISPs or enterprises are more likely to use NAT64=
, DS-Lite, or MAP, based on what I'm seeing people working on.

My fear with 464xlat is that it's largely untested in environments like the=
 IETF. I would not support making it the default SSID. We've had a NAT64 SSI=
D for several years; it could be promoted to default, if we can demonstrate =
with confidence that everyone can still get their work done.

Lee

>
>Saludos,
>Jordi
>
>
>-----Mensaje original-----
>De: sunset4 <sunset4-bounces@ietf.org> en nombre de Philip Homburg <pch-su=
nset4-1@u-1.phicoh.com>
>Responder a: <pch-sunset4-1@u-1.phicoh.com>
>Fecha: viernes, 7 de octubre de 2016, 12:04
>Para: <sunset4@ietf.org>
>CC: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
>Asunto: Re: [sunset4] Sunset4 work
>
>    In your letter dated Thu, 06 Oct 2016 23:28:32 +0000 you wrote:
>    > Nastygram.  So make the default IETF SSIDs IPv6-only or (+NAT64)
>    > if you want.  Then have the ietf-legacy network, which would give
>    > you IPv4 and a portal page penalty that you have to state the nature
>    > why you have to use this network and cant live on the default one.
>    > Id be so curious to see what happens when people finally have to
>    > start thinking about it.. and open internal tickets ..  It was
>    > great fun doing it 6-ish years ago, ..
>   =20
>    Personally, I consider offering NAT64 over wifi quite absurd. The obvi=
ous
>    way to provide access to legacy IPv4 is some form of NAT4. How it is=20
>    transported over the rest of the network is upto the network operator.=
 But
>    the obvious interface is RFC 894.
>   =20
>    So on networks that promote NAT64 (FOSDEM has this setup for quite a n=
umber of
>    years now) I just connect to the legacy network. Their legacy network =
has
>    perfectly fine IPv6, so I consider it way better than the NAT64 that
>    'everybody' likes to push.
>   =20
>    For the specific mobile weirdness, NAT64 make sense. But everywhere el=
se,
>    requiring every device to have 464xlat to deal with IPv4 literals is j=
ust
>    bad engineering. If your backbone is IPv6-only, then the obvious solut=
ion
>    is to deal with this in CPEs, wifi access points, etc. Not to require =
all
>    hosts to know the details of your network.
>   =20
>   =20
>    _______________________________________________
>    sunset4 mailing list
>    sunset4@ietf.org
>    https://www.ietf.org/mailman/listinfo/sunset4
>   =20
>   =20
>
>
>
>**********************************************
>IPv4 is over
>Are you ready for the new Internet ?
>http://www.consulintel.es
>The IPv6 Company
>
>This electronic message contains information which may be privileged or co=
nfidential. The information is intended to be for the use of the individual(=
s) named above. If you are not the intended recipient be aware that any disc=
losure, copying, distribution or use of the contents of this information, in=
cluding attached files, is prohibited.
>
>
>
>_______________________________________________
>sunset4 mailing list
>sunset4@ietf.org
>https://www.ietf.org/mailman/listinfo/sunset4


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From: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
To: <sunset4@ietf.org>
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    On 10/7/16, 6:27 AM, "sunset4 on behalf of JORDI PALET MARTINEZ" <sunse=
t4-bounces@ietf.org on behalf of jordi.palet@consulintel.es> wrote:
   =20
    >This is what I=E2=80=99m proposing. May be I miss explained it.
    >
    >NOT asking EVERY device in our network to HAVE 464XLAT client (CLAT), =
but having ONLY our =E2=80=9CCPE=E2=80=9D to have it.
    >
    >Nodes will not notice anything.
    >
    >This is what is going to happen in the future in most of the networks =
because they will not have IPv4 for every customer, so why not trying it ou=
rselves? Already happening in many cellular networks, like in US, which are=
 close to have 60% IPv6 traffic already.
   =20
    You think 464xlat is what's going to happen in the future in most netwo=
rks?
    Mobile networks, yes, it's a primary transition mechanisms.
    Wi-fi networks operated by ISPs or enterprises are more likely to use N=
AT64, DS-Lite, or MAP, based on what I'm seeing people working on.

I disagree in several points:
1) 464XLAT is not only for cellular networks, just read the draft.
2) It has been implemented by some CPE vendors. It can be run in Virtual Ma=
chines as well.
a. http://www.necat.co.jp/en/ipv6/index.html
b. https://conference.apnic.net/__data/assets/pdf_file/0013/50701/34th_apni=
c_464xlat.pdf
3) I=E2=80=99ve tested it in several ISP network. Trials at the time being,=
 but coming into production.
4) NAT64 is WORST than 464XLAT. NAT64 doesn=E2=80=99t sort out the problems=
 for apps using literals. 464XLAT sort it out. Yes, NAT64 was developed fir=
st, but that=E2=80=99s the reason 464XLAT was needed, because not everythin=
g was working in NAT64.
5) If you don=E2=80=99t trust 464XLAT, then you can=E2=80=99t trust in NAT6=
4, because is just an =E2=80=9Cincomplete=E2=80=9D version of 464XLAT.

I agree with you that DS-Lite and MAP are other choices, comparable with 46=
4XLAT. They will be a better test, for sure than just NAT64.

If you want something more lightweight than DS-Lite, probably will be bette=
r to use lw4o6.=20

Just to make sure it has been understood: I=E2=80=99m not asking to impleme=
nt anything in the clients of our network. Nobody needs to install anything=
. We just need to have a VM or a set of them if we don=E2=80=99t trust on t=
he hardware performance, as the =E2=80=9CCPE router=E2=80=9D of the IETF SS=
IDs that we want to run this. This VM need to incorporate the CLAT client. =
Our network will behave as an enterprise network which as only IPv6 native =
connectivity to Internet, and the ISP (in this case our own network) will r=
unning the PLAT (NAT64/DNS64).

If you still want to try the NAT64 one more, you can have the NAT64 SSID, t=
hat has been already tested in all the RIR meetings, etc. But this will not=
 run any apps that use literals, old APIs, etc.

    My fear with 464xlat is that it's largely untested in environments like=
 the IETF. I would not support making it the default SSID. We've had a NAT6=
4 SSID for several years; it could be promoted to default, if we can demons=
trate with confidence that everyone can still get their work done.

=E2=87=92 NAT64 as default is not and option. It breaks everything using li=
terals. We want to have a good experience I guess, and be able to detect wh=
at will fail in the future (logging CLAT and NAT64/DNS64 usage), not break =
the IETF network.
              =20
    Lee
   =20
    >
    >Saludos,
    >Jordi
    >
    >
    >-----Mensaje original-----
    >De: sunset4 <sunset4-bounces@ietf.org> en nombre de Philip Homburg <pc=
h-sunset4-1@u-1.phicoh.com>
    >Responder a: <pch-sunset4-1@u-1.phicoh.com>
    >Fecha: viernes, 7 de octubre de 2016, 12:04
    >Para: <sunset4@ietf.org>
    >CC: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
    >Asunto: Re: [sunset4] Sunset4 work
    >
    >    In your letter dated Thu, 06 Oct 2016 23:28:32 +0000 you wrote:
    >    > Nastygram.  So make the default IETF SSIDs IPv6-only or (+NAT64)
    >    > if you want.  Then have the ietf-legacy network, which would giv=
e
    >    > you IPv4 and a portal page penalty that you have to state the na=
ture
    >    > why you have to use this network and cant live on the default on=
e.
    >    > Id be so curious to see what happens when people finally have to
    >    > start thinking about it.. and open internal tickets ..  It was
    >    > great fun doing it 6-ish years ago, ..
    >   =20
    >    Personally, I consider offering NAT64 over wifi quite absurd. The =
obvious
    >    way to provide access to legacy IPv4 is some form of NAT4. How it =
is=20
    >    transported over the rest of the network is upto the network opera=
tor. But
    >    the obvious interface is RFC 894.
    >   =20
    >    So on networks that promote NAT64 (FOSDEM has this setup for quite=
 a number of
    >    years now) I just connect to the legacy network. Their legacy netw=
ork has
    >    perfectly fine IPv6, so I consider it way better than the NAT64 th=
at
    >    'everybody' likes to push.
    >   =20
    >    For the specific mobile weirdness, NAT64 make sense. But everywher=
e else,
    >    requiring every device to have 464xlat to deal with IPv4 literals =
is just
    >    bad engineering. If your backbone is IPv6-only, then the obvious s=
olution
    >    is to deal with this in CPEs, wifi access points, etc. Not to requ=
ire all
    >    hosts to know the details of your network.
    >   =20
    >   =20
    >    _______________________________________________
    >    sunset4 mailing list
    >    sunset4@ietf.org
    >    https://www.ietf.org/mailman/listinfo/sunset4
    >   =20
    >   =20
    >
    >
    >
    >**********************************************
    >IPv4 is over
    >Are you ready for the new Internet ?
    >http://www.consulintel.es
    >The IPv6 Company
    >
    >This electronic message contains information which may be privileged o=
r confidential. The information is intended to be for the use of the indivi=
dual(s) named above. If you are not the intended recipient be aware that an=
y disclosure, copying, distribution or use of the contents of this informat=
ion, including attached files, is prohibited.
    >
    >
    >
    >_______________________________________________
    >sunset4 mailing list
    >sunset4@ietf.org
    >https://www.ietf.org/mailman/listinfo/sunset4
   =20
   =20
   =20



**********************************************
IPv4 is over
Are you ready for the new Internet ?
http://www.consulintel.es
The IPv6 Company

This electronic message contains information which may be privileged or con=
fidential. The information is intended to be for the use of the individual(=
s) named above. If you are not the intended recipient be aware that any dis=
closure, copying, distribution or use of the contents of this information, =
including attached files, is prohibited.




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From: "Heatley, Nick" <nick.heatley@ee.co.uk>
To: "jordi.palet@consulintel.es" <jordi.palet@consulintel.es>, "sunset4@ietf.org" <sunset4@ietf.org>
Thread-Topic: [sunset4] Sunset4 work
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Subject: Re: [sunset4] Sunset4 work
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Subject: [sunset4] let 'localhost' be localhost
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In the hopes of allowing devices to some day drop their IPv4 stacks, one
thing we will need to keep an eye out for is any behavior that encourages
hard-coding 127.0.0.1 or ::1 rather than using a "localhost" abstraction.
In the W3C WebAppSec Secure Context discussion, there has been concern that
"localhost" shouldn't be a "secure context" (unlike 127.0.0.1 and ::1) due
to resolvers not always returning localhost.  I worry that this could
result in increased use of "127.0.0.1" (such as by web pages containing
URLs instructing clients to talk to a localhost resource service).

Mike West has written up a "let localhost be localhost" draft to cover this:

     https://tools.ietf.org/html/draft-west-let-localhost-be-localhost-02

I'm sure feedback is quite welcome (and I wonder if sunset4 might be one
reasonable place to pick up this work?).

Some background:
https://github.com/w3c/webappsec-secure-contexts/issues/43

- Erik

--94eb2c0b0c62a7f1be053f11f1c9
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<div dir=3D"ltr"><div>In the hopes of allowing devices to some day drop the=
ir IPv4 stacks, one thing we will need to keep an eye out for is any behavi=
or that encourages hard-coding 127.0.0.1 or ::1 rather than using a &quot;l=
ocalhost&quot; abstraction.=C2=A0 In the W3C WebAppSec Secure Context discu=
ssion, there has been concern that &quot;localhost&quot; shouldn&#39;t be a=
 &quot;secure context&quot; (unlike 127.0.0.1 and ::1) due to resolvers not=
 always returning localhost.=C2=A0 I worry that this could result in increa=
sed use of &quot;127.0.0.1&quot; (such as by web pages containing URLs inst=
ructing clients to talk to a localhost resource service).<br><br></div>Mike=
 West has written up a &quot;let localhost be localhost&quot; draft to cove=
r this:<br><div><div><div><br>=C2=A0=C2=A0=C2=A0=C2=A0 <a href=3D"https://t=
ools.ietf.org/html/draft-west-let-localhost-be-localhost-02">https://tools.=
ietf.org/html/draft-west-let-localhost-be-localhost-02</a><br><br></div><di=
v>I&#39;m sure feedback is quite welcome (and I wonder if sunset4 might be =
one reasonable place to pick up this work?).<br></div><div><br>Some backgro=
und:=C2=A0=C2=A0=C2=A0=C2=A0 <a href=3D"https://github.com/w3c/webappsec-se=
cure-contexts/issues/43">https://github.com/w3c/webappsec-secure-contexts/i=
ssues/43</a><br><br>- Erik<br><br><br></div></div></div></div>

--94eb2c0b0c62a7f1be053f11f1c9--


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Date: Mon, 17 Oct 2016 18:32:03 +0200
From: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
To: <nick.heatley@ee.co.uk>, "sunset4@ietf.org" <sunset4@ietf.org>
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Thread-Topic: [sunset4] Sunset4 work
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Subject: Re: [sunset4] Sunset4 work
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Nice summary ;-)

Let=E2=80=99s put in this way regarding the IETF SSID and =E2=80=9Cdogfoodi=
ng=E2=80=9D:

B allows us to *detect* what will fail when we go to A, but not creating th=
e users a lot of problems and waste of time, complains to the NOG, etc.

Then, once we have warned those services and apps that fail, exposing publi=
cly the results of what is subjected to failure if we go to A, keep using B=
 in our network at each following IETF, see the evolution of those =E2=80=
=9Cdetected failures=E2=80=9D and may be in one year from one decide if we =
want to move to A.


Saludos,
Jordi


-----Mensaje original-----
De: sunset4 <sunset4-bounces@ietf.org> en nombre de "Heatley, Nick" <nick.h=
eatley@ee.co.uk>
Responder a: <nick.heatley@ee.co.uk>
Fecha: lunes, 17 de octubre de 2016, 18:04
Para: "jordi.palet@consulintel.es" <jordi.palet@consulintel.es>, "sunset4@i=
etf.org" <sunset4@ietf.org>
Asunto: Re: [sunset4] Sunset4 work

    A thought provoking discussion.
    I don't think the specific transition technology matters so much as the=
 "family" it falls into.=20
    What matters is whether IETF wishes to showcase IPv6-only down to the c=
ustomer client devices (and then to harvest the expected client issues, IPs=
ec failing?), or whether it wishes to showcase "local dualstack on the smal=
l-stub-network, with an IPv6-only provider connection" to show how small-st=
ub-networks could be connected in the future.
   =20
    Let me explain (longer answer).
    In a number of years' time, as providers run out of IPv4 publics, edge =
"networks" will be brought on with only global IPv6 addressing available as=
 the persistent identifier for connected endpoints. (I am assuming in Sunse=
t4 we can agree on that).
    But what addressing is within the edge network?
    1. For large edge networks where private addressing numbers are not suf=
ficient to meet the number of connected devices, they will need to go IPv6-=
only, as we have seen with large mobile operators, and learnt with Microsof=
t Enterprise, Facebook etc. These networks all say private IPv4 addressing =
is not sufficient.
    2. For smaller enterprise edge networks then they may well be sitting a=
nd waiting, or following the above, time will tell.
    3. For "small-stub-networks" (SSN), where the number of connected devic=
es is manageable then clearly IPv4 private addressing is sufficient.  Publi=
c Wifi access being a perfect example of SSN, or any model using a consumer=
 CPE I suppose. So this is the question for sunset4:
    (A) Do we wish to advocate IPv6-only in this SSN scenario? in which cas=
e all current and future client issues must be resolved (IPv4 literals) suc=
h that the clients work in the absence of an IPv4 address? This case is typ=
ified by NAT64/DNS64, other transition mechanisms are available.
    (B) Do we wish to advocate dualstack networking to the client in this S=
SN scenario? Avoid client issues by providing them with a GUA and a IPv4 pr=
ivate? In which case the transition technology (held within the CPE) needs =
to enable dualstack on the access side but on the provider side, cope with =
only an IPv6-only provider connection. 464xlat in the CPE (like 464xlat bas=
ed tethering from a cellular handset) is an example of a transition technol=
ogy in this family, others are available.
   =20
    Both of these SSN approaches assume that within the core of the interne=
t their remains the legacy IPv4-only content, which seems valid for "consum=
er electronics networking" in general.
    They differ on how we expect consumer electronics networking to evolve =
(or how we *want* it to evolve). We could advocate both for sure, but not s=
ure if that helps move sunset4 forward!
   =20
    My opinion, take it or leave it, is that pragmatically, a SSN vision ba=
sed on (B) is less problematic. It is less dependent on moving a whole coll=
ection of Consumer Electronics away from today's deficient state, because (=
A) essential demands they work in absence of IPv4. This requires concerted =
effort to remove the "IPv6-only" mode bugs that we know exist.
    The biggest problem with (A) is that you cannot make the network model =
the compulsory model, until the majority of Consumer Electronics is fully r=
eady, which creates another network provider chicken-egg problem. You can d=
o OS by OS (something that a popular smartphone and PC vendor is attempting=
 with IPv6-only, NAT64) but network providers don't wish to create individu=
al network paradigms for each OS.
   =20
    Then we look back at 2., above. Enterprises moving to IPv6-only - do we=
 have some need and obligation within Sunset4 to push (A) to avoid Enterpri=
ses being trapped in an IPv4 world? To leave dualstack in one part of the e=
dge (SSN) - does it undermine the benefits we are telling enterprises on IP=
v6-only e.g. removal of dual address complexity. Personally I believe this =
is only really an issue in practice where the enterprise is so large that t=
he 20M private addresses are not sufficient for their organisation - and I =
think such enterprises are big enough to progress this issue themselves if =
they wish IPv6-only to work for them. But if (A) is consensus then Sunset4 =
should start to define the client requirements for absence of IPv4 in a SSN=
. And unlike provider networks, enterprise networks own and manage the end =
to end network use case themselves.
   =20
    The other concern for me about (A) is that I have already oversimplifie=
d devices as "consumer electronics" as though they only fall into the hands=
 of consumers in consumer usecases.
    One of the big issues I foresee with the IPv6-only approach of certain =
OS vendor(s) is that something like a smartphone can be an end device with =
its network interface servicing "on board Apps" (typical mobile connectivit=
y), but it can also be a network gateway when used for tethering or "intern=
et sharing". The end device (the device tethered on the end of the wifi lin=
k) may actually be in an enterprise use case ("VPN into an office network" =
for example). By making the SSN IPv6-only we may risk placing requirements =
on the enterprise network (i.e. outside-in connectivity like the VPN concen=
trator, may need certain functionality to terminate an IPv6 IPsec VPN etc.)=
. We may need the requirements for (A) not just be about end devices but al=
so coordinating requirements for various gateways in enterprise networks? I=
f you believe that, it is another serious chicken-egg problem; do we need e=
nterprise networks upgraded before we can move to a solution for SSNs? (See=
 the IPsec comments in https://tools.ietf.org/html/rfc7269#section-6.1 but =
in the general case IPsec VPN is a fail, right?)
     I am very much in favour of the family of transition technologies that=
 enable (B).
   =20
    SO I inferred a definition of the term SSN to suit my needs in this mai=
l. What is really boils down to is that edge networks need some sort of CPE=
 or Gateway to the provider network. Do we want that CPE to provide dualsta=
ck locally or IPv6-only when the provider addresses run out.
    Back to the IETF SSID, what SSN vision do you wish to showcase? (I'd pr=
efer a choice for long term rather than "for next meeting" and I'd go for s=
omething like Jordi's 464xlat in the CPE! Choose wisely :-)
    If an IPv6-only SSID is just to showcase IPsec VPNs still failing, it i=
s a bit of a waste of people's time).
    Regards,
    Nick
   =20
   =20
   =20
   =20
   =20
    -----Original Message-----
    From: sunset4 [mailto:sunset4-bounces@ietf.org] On Behalf Of JORDI PALE=
T MARTINEZ
    Sent: 07 October 2016 21:02
    To:=20
    Subject: Re: [sunset4] Sunset4 work
   =20
        On 10/7/16, 6:27 AM, "sunset4 on behalf of JORDI PALET MARTINEZ" <s=
unset4-bounces@ietf.org on behalf of jordi.palet@consulintel.es> wrote:
       =20
        >This is what I=E2=80=99m proposing. May be I miss explained it.
        >
        >NOT asking EVERY device in our network to HAVE 464XLAT client (CLA=
T), but having ONLY our =E2=80=9CCPE=E2=80=9D to have it.
        >
        >Nodes will not notice anything.
        >
        >This is what is going to happen in the future in most of the netwo=
rks because they will not have IPv4 for every customer, so why not trying i=
t ourselves? Already happening in many cellular networks, like in US, which=
 are close to have 60% IPv6 traffic already.
       =20
        You think 464xlat is what's going to happen in the future in most n=
etworks?
        Mobile networks, yes, it's a primary transition mechanisms.
        Wi-fi networks operated by ISPs or enterprises are more likely to u=
se NAT64, DS-Lite, or MAP, based on what I'm seeing people working on.
   =20
    I disagree in several points:
    1) 464XLAT is not only for cellular networks, just read the draft.
    2) It has been implemented by some CPE vendors. It can be run in Virtua=
l Machines as well.
    a. http://www.necat.co.jp/en/ipv6/index.html
    b. https://conference.apnic.net/__data/assets/pdf_file/0013/50701/34th_=
apnic_464xlat.pdf
    3) I=E2=80=99ve tested it in several ISP network. Trials at the time be=
ing, but coming into production.
    4) NAT64 is WORST than 464XLAT. NAT64 doesn=E2=80=99t sort out the prob=
lems for apps using literals. 464XLAT sort it out. Yes, NAT64 was developed=
 first, but that=E2=80=99s the reason 464XLAT was needed, because not every=
thing was working in NAT64.
    5) If you don=E2=80=99t trust 464XLAT, then you can=E2=80=99t trust in =
NAT64, because is just an =E2=80=9Cincomplete=E2=80=9D version of 464XLAT.
   =20
    I agree with you that DS-Lite and MAP are other choices, comparable wit=
h 464XLAT. They will be a better test, for sure than just NAT64.
   =20
    If you want something more lightweight than DS-Lite, probably will be b=
etter to use lw4o6.=20
   =20
    Just to make sure it has been understood: I=E2=80=99m not asking to imp=
lement anything in the clients of our network. Nobody needs to install anyt=
hing. We just need to have a VM or a set of them if we don=E2=80=99t trust =
on the hardware performance, as the =E2=80=9CCPE router=E2=80=9D of the IET=
F SSIDs that we want to run this. This VM need to incorporate the CLAT clie=
nt. Our network will behave as an enterprise network which as only IPv6 nat=
ive connectivity to Internet, and the ISP (in this case our own network) wi=
ll running the PLAT (NAT64/DNS64).
   =20
    If you still want to try the NAT64 one more, you can have the NAT64 SSI=
D, that has been already tested in all the RIR meetings, etc. But this will=
 not run any apps that use literals, old APIs, etc.
   =20
        My fear with 464xlat is that it's largely untested in environments =
like the IETF. I would not support making it the default SSID. We've had a =
NAT64 SSID for several years; it could be promoted to default, if we can de=
monstrate with confidence that everyone can still get their work done.
   =20
    =E2=87=92 NAT64 as default is not and option. It breaks everything usin=
g literals. We want to have a good experience I guess, and be able to detec=
t what will fail in the future (logging CLAT and NAT64/DNS64 usage), not br=
eak the IETF network.
                  =20
        Lee
       =20
        >
        >Saludos,
        >Jordi
        >
        >
        >-----Mensaje original-----
        >De: sunset4 <sunset4-bounces@ietf.org> en nombre de Philip Homburg=
 <pch-sunset4-1@u-1.phicoh.com>
        >Responder a: <pch-sunset4-1@u-1.phicoh.com>
        >Fecha: viernes, 7 de octubre de 2016, 12:04
        >Para: <sunset4@ietf.org>
        >CC: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
        >Asunto: Re: [sunset4] Sunset4 work
        >
        >    In your letter dated Thu, 06 Oct 2016 23:28:32 +0000 you wrote=
:
        >    > Nastygram.  So make the default IETF SSIDs IPv6-only or (+NA=
T64)
        >    > if you want.  Then have the ietf-legacy network, which would=
 give
        >    > you IPv4 and a portal page penalty that you have to state th=
e nature
        >    > why you have to use this network and cant live on the defaul=
t one.
        >    > Id be so curious to see what happens when people finally hav=
e to
        >    > start thinking about it.. and open internal tickets ..  It w=
as
        >    > great fun doing it 6-ish years ago, ..
        >   =20
        >    Personally, I consider offering NAT64 over wifi quite absurd. =
The obvious
        >    way to provide access to legacy IPv4 is some form of NAT4. How=
 it is=20
        >    transported over the rest of the network is upto the network o=
perator. But
        >    the obvious interface is RFC 894.
        >   =20
        >    So on networks that promote NAT64 (FOSDEM has this setup for q=
uite a number of
        >    years now) I just connect to the legacy network. Their legacy =
network has
        >    perfectly fine IPv6, so I consider it way better than the NAT6=
4 that
        >    'everybody' likes to push.
        >   =20
        >    For the specific mobile weirdness, NAT64 make sense. But every=
where else,
        >    requiring every device to have 464xlat to deal with IPv4 liter=
als is just
        >    bad engineering. If your backbone is IPv6-only, then the obvio=
us solution
        >    is to deal with this in CPEs, wifi access points, etc. Not to =
require all
        >    hosts to know the details of your network.
        >   =20
        >   =20
        >    _______________________________________________
        >    sunset4 mailing list
        >    sunset4@ietf.org
        >    https://www.ietf.org/mailman/listinfo/sunset4
        >   =20
        >   =20
        >
        >
        >
        >**********************************************
        >IPv4 is over
        >Are you ready for the new Internet ?
        >http://www.consulintel.es
        >The IPv6 Company
        >
        >This electronic message contains information which may be privileg=
ed or confidential. The information is intended to be for the use of the in=
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        >sunset4@ietf.org
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       =20
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    **********************************************
    IPv4 is over
    Are you ready for the new Internet ?
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    The IPv6 Company
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**********************************************
IPv4 is over
Are you ready for the new Internet ?
http://www.consulintel.es
The IPv6 Company

This electronic message contains information which may be privileged or con=
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From nobody Mon Oct 17 10:51:15 2016
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From: "Marc Blanchet" <marc.blanchet@viagenie.ca>
To: "Erik Nygren" <erik+ietf@nygren.org>
Date: Mon, 17 Oct 2016 13:51:10 -0400
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Subject: Re: [sunset4] let 'localhost' be localhost
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On 17 Oct 2016, at 12:19, Erik Nygren wrote:

> In the hopes of allowing devices to some day drop their IPv4 stacks, 
> one
> thing we will need to keep an eye out for is any behavior that 
> encourages
> hard-coding 127.0.0.1 or ::1 rather than using a "localhost" 
> abstraction.
> In the W3C WebAppSec Secure Context discussion, there has been concern 
> that
> "localhost" shouldn't be a "secure context" (unlike 127.0.0.1 and ::1) 
> due
> to resolvers not always returning localhost.  I worry that this could
> result in increased use of "127.0.0.1" (such as by web pages 
> containing
> URLs instructing clients to talk to a localhost resource service).
>
> Mike West has written up a "let localhost be localhost" draft to cover 
> this:
>
>      https://tools.ietf.org/html/draft-west-let-localhost-be-localhost-02
>
> I'm sure feedback is quite welcome (and I wonder if sunset4 might be 
> one
> reasonable place to pick up this work?).

interesting issue. It certainly relates to name resolution not behaving 
the way it should.

But yes, sunset4 make sense to pick up this work.

would one of you two be in Seoul? If yes, we could carve up 5-10 minutes 
in the agenda for that topic.

Marc.

>
> Some background:
> https://github.com/w3c/webappsec-secure-contexts/issues/43
>
> - Erik


> _______________________________________________
> sunset4 mailing list
> sunset4@ietf.org
> https://www.ietf.org/mailman/listinfo/sunset4


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In message <6536E263028723489CCD5B6821D4B2132C3B8AA9@UK30S005EXS06.EEAD.EEINT.CO.UK>, "Heatley, Nick" writes:
> A thought provoking discussion.
> I don't think the specific transition technology matters so much as the
> "family" it falls into.

Actually the specific transition technology does matter.  It impacts
on what works and what doesn't in the IPv6 connected dual stack
island.

Can the client get a "listening" port to accept externally originating
traffic?  Games need to be able to get listening ports.

Does the transition technology break DNSSEC?

Do the nodes support it especially when the local net is ipv6-only.

Just because the phones went 464xlat doesn't mean that it is the
right fit for the home or office.

Mark

> What matters is whether IETF wishes to showcase IPv6-only down to the
> customer client devices (and then to harvest the expected client issues,
> IPsec failing?), or whether it wishes to showcase "local dualstack on the
> small-stub-network, with an IPv6-only provider connection" to show how
> small-stub-networks could be connected in the future.
>
> Let me explain (longer answer).
> In a number of years' time, as providers run out of IPv4 publics, edge
> "networks" will be brought on with only global IPv6 addressing available
> as the persistent identifier for connected endpoints. (I am assuming in
> Sunset4 we can agree on that).
> But what addressing is within the edge network?
> 1. For large edge networks where private addressing numbers are not
> sufficient to meet the number of connected devices, they will need to go
> IPv6-only, as we have seen with large mobile operators, and learnt with
> Microsoft Enterprise, Facebook etc. These networks all say private IPv4
> addressing is not sufficient.
> 2. For smaller enterprise edge networks then they may well be sitting and
> waiting, or following the above, time will tell.
> 3. For "small-stub-networks" (SSN), where the number of connected devices
> is manageable then clearly IPv4 private addressing is sufficient.  Public
> Wifi access being a perfect example of SSN, or any model using a consumer
> CPE I suppose. So this is the question for sunset4:
> (A) Do we wish to advocate IPv6-only in this SSN scenario? in which case
> all current and future client issues must be resolved (IPv4 literals)
> such that the clients work in the absence of an IPv4 address? This case
> is typified by NAT64/DNS64, other transition mechanisms are available.
> (B) Do we wish to advocate dualstack networking to the client in this SSN
> scenario? Avoid client issues by providing them with a GUA and a IPv4
> private? In which case the transition technology (held within the CPE)
> needs to enable dualstack on the access side but on the provider side,
> cope with only an IPv6-only provider connection. 464xlat in the CPE (like
> 464xlat based tethering from a cellular handset) is an example of a
> transition technology in this family, others are available.
>
> Both of these SSN approaches assume that within the core of the internet
> their remains the legacy IPv4-only content, which seems valid for
> "consumer electronics networking" in general.
> They differ on how we expect consumer electronics networking to evolve
> (or how we *want* it to evolve). We could advocate both for sure, but not
> sure if that helps move sunset4 forward!
>
> My opinion, take it or leave it, is that pragmatically, a SSN vision
> based on (B) is less problematic. It is less dependent on moving a whole
> collection of Consumer Electronics away from today's deficient state,
> because (A) essential demands they work in absence of IPv4. This requires
> concerted effort to remove the "IPv6-only" mode bugs that we know exist.
> The biggest problem with (A) is that you cannot make the network model
> the compulsory model, until the majority of Consumer Electronics is fully
> ready, which creates another network provider chicken-egg problem. You
> can do OS by OS (something that a popular smartphone and PC vendor is
> attempting with IPv6-only, NAT64) but network providers don't wish to
> create individual network paradigms for each OS.
>
> Then we look back at 2., above. Enterprises moving to IPv6-only - do we
> have some need and obligation within Sunset4 to push (A) to avoid
> Enterprises being trapped in an IPv4 world? To leave dualstack in one
> part of the edge (SSN) - does it undermine the benefits we are telling
> enterprises on IPv6-only e.g. removal of dual address complexity.
> Personally I believe this is only really an issue in practice where the
> enterprise is so large that the 20M private addresses are not sufficient
> for their organisation - and I think such enterprises are big enough to
> progress this issue themselves if they wish IPv6-only to work for them.
> But if (A) is consensus then Sunset4 should start to define the client
> requirements for absence of IPv4 in a SSN. And unlike provider networks,
> enterprise networks own and manage the end to end network use case
> themselves.
>
> The other concern for me about (A) is that I have already oversimplified
> devices as "consumer electronics" as though they only fall into the hands
> of consumers in consumer usecases.
> One of the big issues I foresee with the IPv6-only approach of certain OS
> vendor(s) is that something like a smartphone can be an end device with
> its network interface servicing "on board Apps" (typical mobile
> connectivity), but it can also be a network gateway when used for
> tethering or "internet sharing". The end device (the device tethered on
> the end of the wifi link) may actually be in an enterprise use case ("VPN
> into an office network" for example). By making the SSN IPv6-only we may
> risk placing requirements on the enterprise network (i.e. outside-in
> connectivity like the VPN concentrator, may need certain functionality to
> terminate an IPv6 IPsec VPN etc.). We may need the requirements for (A)
> not just be about end devices but also coordinating requirements for
> various gateways in enterprise networks? If you believe that, it is
> another serious chicken-egg problem; do we need enterprise networks
> upgraded before we can move to a solution for SSNs? (See the IPsec
> comments in https://tools.ietf.org/html/rfc7269#section-6.1 but in the
> general case IPsec VPN is a fail, right?)
>  I am very much in favour of the family of transition technologies that
> enable (B).
>
> SO I inferred a definition of the term SSN to suit my needs in this mail.
> What is really boils down to is that edge networks need some sort of CPE
> or Gateway to the provider network. Do we want that CPE to provide
> dualstack locally or IPv6-only when the provider addresses run out.
> Back to the IETF SSID, what SSN vision do you wish to showcase? (I'd
> prefer a choice for long term rather than "for next meeting" and I'd go
> for something like Jordi's 464xlat in the CPE! Choose wisely :-)
> If an IPv6-only SSID is just to showcase IPsec VPNs still failing, it is
> a bit of a waste of people's time).
> Regards,
> Nick
>
>
>
>
>
> -----Original Message-----
> From: sunset4 mailto:sunset4-bounces@ietf.org On Behalf Of JORDI PALET
> MARTINEZ
> Sent: 07 October 2016 21:02
> To:
> Subject: Re: sunset4 Sunset4 work
>
>     On 10/7/16, 6:27 AM, "sunset4 on behalf of JORDI PALET MARTINEZ"
> <sunset4-bounces@ietf.org on behalf of jordi.palet@consulintel.es> wrote:
>
>     >This is what Im proposing. May be I miss explained it.
>     >
>     >NOT asking EVERY device in our network to HAVE 464XLAT client
> (CLAT), but having ONLY our CPE to have it.
>     >
>     >Nodes will not notice anything.
>     >
>     >This is what is going to happen in the future in most of the
> networks because they will not have IPv4 for every customer, so why not
> trying it ourselves? Already happening in many cellular networks, like in
> US, which are close to have 60% IPv6 traffic already.
>
>     You think 464xlat is what's going to happen in the future in most
> networks?
>     Mobile networks, yes, it's a primary transition mechanisms.
>     Wi-fi networks operated by ISPs or enterprises are more likely to use
> NAT64, DS-Lite, or MAP, based on what I'm seeing people working on.
>
> I disagree in several points:
> 1) 464XLAT is not only for cellular networks, just read the draft.
> 2) It has been implemented by some CPE vendors. It can be run in Virtual
> Machines as well.
> a. http://www.necat.co.jp/en/ipv6/index.html
> b.
> https://conference.apnic.net/__data/assets/pdf_file/0013/50701/34th_apnic_
> 464xlat.pdf
> 3) Ive tested it in several ISP network. Trials at the time being, but
> coming into production.
> 4) NAT64 is WORST than 464XLAT. NAT64 doesnt sort out the problems for
> apps using literals. 464XLAT sort it out. Yes, NAT64 was developed first,
> but thats the reason 464XLAT was needed, because not everything was
> working in NAT64.
> 5) If you dont trust 464XLAT, then you cant trust in NAT64, because is
> just an incomplete version of 464XLAT.
>
> I agree with you that DS-Lite and MAP are other choices, comparable with
> 464XLAT. They will be a better test, for sure than just NAT64.
>
> If you want something more lightweight than DS-Lite, probably will be
> better to use lw4o6.
>
> Just to make sure it has been understood: Im not asking to implement
> anything in the clients of our network. Nobody needs to install anything.
> We just need to have a VM or a set of them if we dont trust on the
> hardware performance, as the CPE router of the IETF SSIDs that we want to
> run this. This VM need to incorporate the CLAT client. Our network will
> behave as an enterprise network which as only IPv6 native connectivity to
> Internet, and the ISP (in this case our own network) will running the
> PLAT (NAT64/DNS64).
>
> If you still want to try the NAT64 one more, you can have the NAT64 SSID,
> that has been already tested in all the RIR meetings, etc. But this will
> not run any apps that use literals, old APIs, etc.
>
>     My fear with 464xlat is that it's largely untested in environments
> like the IETF. I would not support making it the default SSID. We've had
> a NAT64 SSID for several years; it could be promoted to default, if we
> can demonstrate with confidence that everyone can still get their work
> done.
>
>  NAT64 as default is not and option. It breaks everything using literals.
> We want to have a good experience I guess, and be able to detect what
> will fail in the future (logging CLAT and NAT64/DNS64 usage), not break
> the IETF network.
>
>     Lee
>
>     >
>     >Saludos,
>     >Jordi
>     >
>     >
>     >-----Mensaje original-----
>     >De: sunset4 <sunset4-bounces@ietf.org> en nombre de Philip Homburg
> <pch-sunset4-1@u-1.phicoh.com>
>     >Responder a: <pch-sunset4-1@u-1.phicoh.com>
>     >Fecha: viernes, 7 de octubre de 2016, 12:04
>     >Para: <sunset4@ietf.org>
>     >CC: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
>     >Asunto: Re: sunset4 Sunset4 work
>     >
>     >    In your letter dated Thu, 06 Oct 2016 23:28:32 +0000 you wrote:
>     >    > Nastygram.  So make the default IETF SSIDs IPv6-only or
> (+NAT64)
>     >    > if you want.  Then have the ietf-legacy network, which would
> give
>     >    > you IPv4 and a portal page penalty that you have to state the
> nature
>     >    > why you have to use this network and cant live on the default
> one.
>     >    > Id be so curious to see what happens when people finally have
> to
>     >    > start thinking about it.. and open internal tickets ..  It was
>     >    > great fun doing it 6-ish years ago, ..
>     >
>     >    Personally, I consider offering NAT64 over wifi quite absurd.
> The obvious
>     >    way to provide access to legacy IPv4 is some form of NAT4. How
> it is
>     >    transported over the rest of the network is upto the network
> operator. But
>     >    the obvious interface is RFC 894.
>     >
>     >    So on networks that promote NAT64 (FOSDEM has this setup for
> quite a number of
>     >    years now) I just connect to the legacy network. Their legacy
> network has
>     >    perfectly fine IPv6, so I consider it way better than the NAT64
> that
>     >    'everybody' likes to push.
>     >
>     >    For the specific mobile weirdness, NAT64 make sense. But
> everywhere else,
>     >    requiring every device to have 464xlat to deal with IPv4
> literals is just
>     >    bad engineering. If your backbone is IPv6-only, then the obvious
> solution
>     >    is to deal with this in CPEs, wifi access points, etc. Not to
> require all
>     >    hosts to know the details of your network.
>     >
>     >
>     >    _______________________________________________
>     >    sunset4 mailing list
>     >    sunset4@ietf.org
>     >    https://www.ietf.org/mailman/listinfo/sunset4
>     >
>     >
>     >
>     >
>     >
>     >**********************************************
>     >IPv4 is over
>     >Are you ready for the new Internet ?
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>     >The IPv6 Company
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>
>
>
>
>
>
> **********************************************
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org


From nobody Mon Oct 17 16:54:02 2016
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To: "Marc Blanchet" <marc.blanchet@viagenie.ca>
From: Mark Andrews <marka@isc.org>
References: <CAKC-DJjE7so+6a9RnPHCYZz=dcmwScbP-tLLEVqM9e1Q9ih4yA@mail.gmail.com> <9D1C5C76-417A-4AF4-9FB0-8354FA8B5A60@viagenie.ca>
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Date: Tue, 18 Oct 2016 10:53:53 +1100
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Cc: Erik Nygren <erik+ietf@nygren.org>, Mike West <mkwst@google.com>, sunset4@ietf.org
Subject: Re: [sunset4] let 'localhost' be localhost
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I would argue that sunset4 doesn't have the depth of expertise to
do this properly.  That the issues are much more nuanced than the
draft makes out.

I would argue that there needs to be the equivalent of a local DNS
server for the zone localhost.  More than A and AAAA records need
to be able to be returned.

I would argue that the root zone needs a insecure delegation for
localhost.

I would argue that the input string "localhost" needs to be treated
as absolute.  i.e. search lists don't apply.

Mark

In message <9D1C5C76-417A-4AF4-9FB0-8354FA8B5A60@viagenie.ca>, "Marc Blanchet" writes:
> On 17 Oct 2016, at 12:19, Erik Nygren wrote:
> 
> > In the hopes of allowing devices to some day drop their IPv4 stacks, 
> > one
> > thing we will need to keep an eye out for is any behavior that 
> > encourages
> > hard-coding 127.0.0.1 or ::1 rather than using a "localhost" 
> > abstraction.
> > In the W3C WebAppSec Secure Context discussion, there has been concern 
> > that
> > "localhost" shouldn't be a "secure context" (unlike 127.0.0.1 and ::1) 
> > due
> > to resolvers not always returning localhost.  I worry that this could
> > result in increased use of "127.0.0.1" (such as by web pages 
> > containing
> > URLs instructing clients to talk to a localhost resource service).
> >
> > Mike West has written up a "let localhost be localhost" draft to cover 
> > this:
> >
> >      https://tools.ietf.org/html/draft-west-let-localhost-be-localhost-02
> >
> > I'm sure feedback is quite welcome (and I wonder if sunset4 might be 
> > one
> > reasonable place to pick up this work?).
> 
> interesting issue. It certainly relates to name resolution not behaving 
> the way it should.
> 
> But yes, sunset4 make sense to pick up this work.
> 
> would one of you two be in Seoul? If yes, we could carve up 5-10 minutes 
> in the agenda for that topic.
> 
> Marc.
> 
> >
> > Some background:
> > https://github.com/w3c/webappsec-secure-contexts/issues/43
> >
> > - Erik
> 
> 
> > _______________________________________________
> > sunset4 mailing list
> > sunset4@ietf.org
> > https://www.ietf.org/mailman/listinfo/sunset4
> 
> _______________________________________________
> sunset4 mailing list
> sunset4@ietf.org
> https://www.ietf.org/mailman/listinfo/sunset4
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org


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To: Mark Andrews <marka@isc.org>
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Hi Mark, In my mail, you misunderstood if you thought I was simply sugges=
ting xlat. Rather I was contrasting two "families" of tech that either pr=
ovide IPv6-only or some type of dualstack, as some first decision point.
Nevertheless you are right, in any solution the technology does matter.
Your comments suggest that you have concerns that something more than IPv=
6-only + NAT64 is required?
Nick

-----Original Message-----
From: Mark Andrews [mailto:marka@isc.org]=20
Sent: 17 October 2016 20:50
To: Heatley, Nick
Cc: jordi.palet@consulintel.es; sunset4@ietf.org
Subject: Re: [sunset4] Sunset4 work


In message <6536E263028723489CCD5B6821D4B2132C3B8AA9@UK30S005EXS06.EEAD.E=
EINT.CO.UK>, "Heatley, Nick" writes:
> A thought provoking discussion.
> I don't think the specific transition technology matters so much as=20
> the "family" it falls into.

Actually the specific transition technology does matter.  It impacts on w=
hat works and what doesn't in the IPv6 connected dual stack island.

Can the client get a "listening" port to accept externally originating tr=
affic?  Games need to be able to get listening ports.

Does the transition technology break DNSSEC?

Do the nodes support it especially when the local net is ipv6-only.

Just because the phones went 464xlat doesn't mean that it is the right fi=
t for the home or office.

Mark

> What matters is whether IETF wishes to showcase IPv6-only down to the=20
> customer client devices (and then to harvest the expected client=20
> issues, IPsec failing?), or whether it wishes to showcase "local=20
> dualstack on the small-stub-network, with an IPv6-only provider=20
> connection" to show how small-stub-networks could be connected in the f=
uture.
>
> Let me explain (longer answer).
> In a number of years' time, as providers run out of IPv4 publics, edge =

> "networks" will be brought on with only global IPv6 addressing=20
> available as the persistent identifier for connected endpoints. (I am=20
> assuming in
> Sunset4 we can agree on that).
> But what addressing is within the edge network?
> 1. For large edge networks where private addressing numbers are not=20
> sufficient to meet the number of connected devices, they will need to=20
> go IPv6-only, as we have seen with large mobile operators, and learnt=20
> with Microsoft Enterprise, Facebook etc. These networks all say=20
> private IPv4 addressing is not sufficient.
> 2. For smaller enterprise edge networks then they may well be sitting=20
> and waiting, or following the above, time will tell.
> 3. For "small-stub-networks" (SSN), where the number of connected=20
> devices is manageable then clearly IPv4 private addressing is=20
> sufficient.  Public Wifi access being a perfect example of SSN, or any =

> model using a consumer CPE I suppose. So this is the question for sunse=
t4:
> (A) Do we wish to advocate IPv6-only in this SSN scenario? in which=20
> case all current and future client issues must be resolved (IPv4=20
> literals) such that the clients work in the absence of an IPv4=20
> address? This case is typified by NAT64/DNS64, other transition mechani=
sms are available.
> (B) Do we wish to advocate dualstack networking to the client in this=20
> SSN scenario? Avoid client issues by providing them with a GUA and a=20
> IPv4 private? In which case the transition technology (held within the =

> CPE) needs to enable dualstack on the access side but on the provider=20
> side, cope with only an IPv6-only provider connection. 464xlat in the=20
> CPE (like 464xlat based tethering from a cellular handset) is an=20
> example of a transition technology in this family, others are available=
.
>
> Both of these SSN approaches assume that within the core of the=20
> internet their remains the legacy IPv4-only content, which seems valid =

> for "consumer electronics networking" in general.
> They differ on how we expect consumer electronics networking to evolve =

> (or how we *want* it to evolve). We could advocate both for sure, but=20
> not sure if that helps move sunset4 forward!
>
> My opinion, take it or leave it, is that pragmatically, a SSN vision=20
> based on (B) is less problematic. It is less dependent on moving a=20
> whole collection of Consumer Electronics away from today's deficient=20
> state, because (A) essential demands they work in absence of IPv4.=20
> This requires concerted effort to remove the "IPv6-only" mode bugs that=
=20we know exist.
> The biggest problem with (A) is that you cannot make the network model =

> the compulsory model, until the majority of Consumer Electronics is=20
> fully ready, which creates another network provider chicken-egg=20
> problem. You can do OS by OS (something that a popular smartphone and=20
> PC vendor is attempting with IPv6-only, NAT64) but network providers=20
> don't wish to create individual network paradigms for each OS.
>
> Then we look back at 2., above. Enterprises moving to IPv6-only - do=20
> we have some need and obligation within Sunset4 to push (A) to avoid=20
> Enterprises being trapped in an IPv4 world? To leave dualstack in one=20
> part of the edge (SSN) - does it undermine the benefits we are telling =

> enterprises on IPv6-only e.g. removal of dual address complexity.
> Personally I believe this is only really an issue in practice where=20
> the enterprise is so large that the 20M private addresses are not=20
> sufficient for their organisation - and I think such enterprises are=20
> big enough to progress this issue themselves if they wish IPv6-only to =
work for them.
> But if (A) is consensus then Sunset4 should start to define the client =

> requirements for absence of IPv4 in a SSN. And unlike provider=20
> networks, enterprise networks own and manage the end to end network=20
> use case themselves.
>
> The other concern for me about (A) is that I have already=20
> oversimplified devices as "consumer electronics" as though they only=20
> fall into the hands of consumers in consumer usecases.
> One of the big issues I foresee with the IPv6-only approach of certain =

> OS
> vendor(s) is that something like a smartphone can be an end device=20
> with its network interface servicing "on board Apps" (typical mobile=20
> connectivity), but it can also be a network gateway when used for=20
> tethering or "internet sharing". The end device (the device tethered=20
> on the end of the wifi link) may actually be in an enterprise use case =

> ("VPN into an office network" for example). By making the SSN=20
> IPv6-only we may risk placing requirements on the enterprise network=20
> (i.e. outside-in connectivity like the VPN concentrator, may need=20
> certain functionality to terminate an IPv6 IPsec VPN etc.). We may=20
> need the requirements for (A) not just be about end devices but also=20
> coordinating requirements for various gateways in enterprise networks? =

> If you believe that, it is another serious chicken-egg problem; do we=20
> need enterprise networks upgraded before we can move to a solution for =

> SSNs? (See the IPsec comments in=20
> https://tools.ietf.org/html/rfc7269#section-6.1 but in the general=20
> case IPsec VPN is a fail, right?)  I am very much in favour of the=20
> family of transition technologies that enable (B).
>
> SO I inferred a definition of the term SSN to suit my needs in this mai=
l.
> What is really boils down to is that edge networks need some sort of=20
> CPE or Gateway to the provider network. Do we want that CPE to provide =

> dualstack locally or IPv6-only when the provider addresses run out.
> Back to the IETF SSID, what SSN vision do you wish to showcase? (I'd=20
> prefer a choice for long term rather than "for next meeting" and I'd=20
> go for something like Jordi's 464xlat in the CPE! Choose wisely :-) If =

> an IPv6-only SSID is just to showcase IPsec VPNs still failing, it is=20
> a bit of a waste of people's time).
> Regards,
> Nick
>
>
>
>
>
> -----Original Message-----
> From: sunset4 mailto:sunset4-bounces@ietf.org On Behalf Of JORDI PALET =

> MARTINEZ
> Sent: 07 October 2016 21:02
> To:
> Subject: Re: sunset4 Sunset4 work
>
>     On 10/7/16, 6:27 AM, "sunset4 on behalf of JORDI PALET MARTINEZ"
> <sunset4-bounces@ietf.org on behalf of jordi.palet@consulintel.es> wrot=
e:
>
>     >This is what Im proposing. May be I miss explained it.
>     >
>     >NOT asking EVERY device in our network to HAVE 464XLAT client=20
> (CLAT), but having ONLY our CPE to have it.
>     >
>     >Nodes will not notice anything.
>     >
>     >This is what is going to happen in the future in most of the=20
> networks because they will not have IPv4 for every customer, so why=20
> not trying it ourselves? Already happening in many cellular networks,=20
> like in US, which are close to have 60% IPv6 traffic already.
>
>     You think 464xlat is what's going to happen in the future in most=20
> networks?
>     Mobile networks, yes, it's a primary transition mechanisms.
>     Wi-fi networks operated by ISPs or enterprises are more likely to=20
> use NAT64, DS-Lite, or MAP, based on what I'm seeing people working on.=

>
> I disagree in several points:
> 1) 464XLAT is not only for cellular networks, just read the draft.
> 2) It has been implemented by some CPE vendors. It can be run in=20
> Virtual Machines as well.
> a. http://www.necat.co.jp/en/ipv6/index.html
> b.
> https://conference.apnic.net/__data/assets/pdf_file/0013/50701/34th_ap
> nic_
> 464xlat.pdf
> 3) Ive tested it in several ISP network. Trials at the time being, but =

> coming into production.
> 4) NAT64 is WORST than 464XLAT. NAT64 doesnt sort out the problems for =

> apps using literals. 464XLAT sort it out. Yes, NAT64 was developed=20
> first, but thats the reason 464XLAT was needed, because not everything =

> was working in NAT64.
> 5) If you dont trust 464XLAT, then you cant trust in NAT64, because is =

> just an incomplete version of 464XLAT.
>
> I agree with you that DS-Lite and MAP are other choices, comparable=20
> with 464XLAT. They will be a better test, for sure than just NAT64.
>
> If you want something more lightweight than DS-Lite, probably will be=20
> better to use lw4o6.
>
> Just to make sure it has been understood: Im not asking to implement=20
> anything in the clients of our network. Nobody needs to install anythin=
g.
> We just need to have a VM or a set of them if we dont trust on the=20
> hardware performance, as the CPE router of the IETF SSIDs that we want =

> to run this. This VM need to incorporate the CLAT client. Our network=20
> will behave as an enterprise network which as only IPv6 native=20
> connectivity to Internet, and the ISP (in this case our own network)=20
> will running the PLAT (NAT64/DNS64).
>
> If you still want to try the NAT64 one more, you can have the NAT64=20
> SSID, that has been already tested in all the RIR meetings, etc. But=20
> this will not run any apps that use literals, old APIs, etc.
>
>     My fear with 464xlat is that it's largely untested in environments =

> like the IETF. I would not support making it the default SSID. We've=20
> had a NAT64 SSID for several years; it could be promoted to default,=20
> if we can demonstrate with confidence that everyone can still get=20
> their work done.
>
>  NAT64 as default is not and option. It breaks everything using literal=
s.
> We want to have a good experience I guess, and be able to detect what=20
> will fail in the future (logging CLAT and NAT64/DNS64 usage), not=20
> break the IETF network.
>
>     Lee
>
>     >
>     >Saludos,
>     >Jordi
>     >
>     >
>     >-----Mensaje original-----
>     >De: sunset4 <sunset4-bounces@ietf.org> en nombre de Philip=20
> Homburg <pch-sunset4-1@u-1.phicoh.com>
>     >Responder a: <pch-sunset4-1@u-1.phicoh.com>
>     >Fecha: viernes, 7 de octubre de 2016, 12:04
>     >Para: <sunset4@ietf.org>
>     >CC: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
>     >Asunto: Re: sunset4 Sunset4 work
>     >
>     >    In your letter dated Thu, 06 Oct 2016 23:28:32 +0000 you wrote=
:
>     >    > Nastygram.  So make the default IETF SSIDs IPv6-only or
> (+NAT64)
>     >    > if you want.  Then have the ietf-legacy network, which would=

> give
>     >    > you IPv4 and a portal page penalty that you have to state th=
e
> nature
>     >    > why you have to use this network and cant live on the defaul=
t
> one.
>     >    > Id be so curious to see what happens when people finally hav=
e
> to
>     >    > start thinking about it.. and open internal tickets ..  It w=
as
>     >    > great fun doing it 6-ish years ago, ..
>     >
>     >    Personally, I consider offering NAT64 over wifi quite absurd.
> The obvious
>     >    way to provide access to legacy IPv4 is some form of NAT4. How=

> it is
>     >    transported over the rest of the network is upto the network
> operator. But
>     >    the obvious interface is RFC 894.
>     >
>     >    So on networks that promote NAT64 (FOSDEM has this setup for
> quite a number of
>     >    years now) I just connect to the legacy network. Their legacy
> network has
>     >    perfectly fine IPv6, so I consider it way better than the NAT6=
4
> that
>     >    'everybody' likes to push.
>     >
>     >    For the specific mobile weirdness, NAT64 make sense. But
> everywhere else,
>     >    requiring every device to have 464xlat to deal with IPv4
> literals is just
>     >    bad engineering. If your backbone is IPv6-only, then the obvio=
us
> solution
>     >    is to deal with this in CPEs, wifi access points, etc. Not to
> require all
>     >    hosts to know the details of your network.
>     >
>     >
>     >    _______________________________________________
>     >    sunset4 mailing list
>     >    sunset4@ietf.org
>     >    https://www.ietf.org/mailman/listinfo/sunset4
>     >
>     >
>     >
>     >
>     >
>     >**********************************************
>     >IPv4 is over
>     >Are you ready for the new Internet ?
>     >http://www.consulintel.es
>     >The IPv6 Company
>     >
>     >This electronic message contains information which may be=20
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> individual(s) named above. If you are not the intended recipient be=20
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>     >
>     >
>     >
>     >_______________________________________________
>     >sunset4 mailing list
>     >sunset4@ietf.org
>     >https://www.ietf.org/mailman/listinfo/sunset4
>
>
>
>
>
>
> **********************************************
> IPv4 is over
> Are you ready for the new Internet ?
> http://www.consulintel.es
> The IPv6 Company
>
> This electronic message contains information which may be privileged=20
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--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org
NOTICE AND DISCLAIMER
This email contains BT information, which may be privileged or confidenti=
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=20the email address above. Thank you.

We monitor our email system, and may record your emails.

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From: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
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If we want the customer to be listening ports to accept incoming traffic, t=
hen IPv6-only access technologies don=E2=80=99t make sense, because that wi=
ll mean 1 to 1 IPv4 to IPv6 mapping, right?

In real world, the problem we have is that we are not having sufficient IPv=
4 addresses for all the =E2=80=9Cresidential=E2=80=9D and cellular networks=
. Those networks most of the time don=E2=80=99t need this mapping, so don=
=E2=80=99t need the IPv4 address. Even corporate networks most of the time =
(specially SMEs), don=E2=80=99t need to expose internal services to outside=
. So all those cases could survive without a =E2=80=9Cstatic=E2=80=9D 1 to =
1 IPv4 mapping, and if app developers know that the path is IPv6, new servi=
ces, IP cameras, VPNs, etc., could work with just native IPv6.

At this way, we can =E2=80=9Crelease=E2=80=9D most of the IPv4 addresses th=
at are being used in those networks, world-wide, so the ISP that have them,=
 can keep growing using pure dual-stack (or another transition that allows =
1 to 1 mapping), for those customers that really need that.

In that context, yes, both 464XLAT and MAP-T/E, work fine for those custome=
rs that don=E2=80=99t need the 1-1 mapping, regardless of being a cellular =
or a wired network.

Saludos,
Jordi


-----Mensaje original-----
De: sunset4 <sunset4-bounces@ietf.org> en nombre de Mark Andrews <marka@isc=
.org>
Responder a: <marka@isc.org>
Fecha: lunes, 17 de octubre de 2016, 21:50
Para: "Heatley, Nick" <nick.heatley@ee.co.uk>
CC: "sunset4@ietf.org" <sunset4@ietf.org>, "jordi.palet@consulintel.es" <jo=
rdi.palet@consulintel.es>
Asunto: Re: [sunset4] Sunset4 work

   =20
    In message <6536E263028723489CCD5B6821D4B2132C3B8AA9@UK30S005EXS06.EEAD=
.EEINT.CO.UK>, "Heatley, Nick" writes:
    > A thought provoking discussion.
    > I don't think the specific transition technology matters so much as t=
he
    > "family" it falls into.
   =20
    Actually the specific transition technology does matter.  It impacts
    on what works and what doesn't in the IPv6 connected dual stack
    island.
   =20
    Can the client get a "listening" port to accept externally originating
    traffic?  Games need to be able to get listening ports.
   =20
    Does the transition technology break DNSSEC?
   =20
    Do the nodes support it especially when the local net is ipv6-only.
   =20
    Just because the phones went 464xlat doesn't mean that it is the
    right fit for the home or office.
   =20
    Mark
   =20
    > What matters is whether IETF wishes to showcase IPv6-only down to the
    > customer client devices (and then to harvest the expected client issu=
es,
    > IPsec failing?), or whether it wishes to showcase "local dualstack on=
 the
    > small-stub-network, with an IPv6-only provider connection" to show ho=
w
    > small-stub-networks could be connected in the future.
    >
    > Let me explain (longer answer).
    > In a number of years' time, as providers run out of IPv4 publics, edg=
e
    > "networks" will be brought on with only global IPv6 addressing availa=
ble
    > as the persistent identifier for connected endpoints. (I am assuming =
in
    > Sunset4 we can agree on that).
    > But what addressing is within the edge network?
    > 1. For large edge networks where private addressing numbers are not
    > sufficient to meet the number of connected devices, they will need to=
 go
    > IPv6-only, as we have seen with large mobile operators, and learnt wi=
th
    > Microsoft Enterprise, Facebook etc. These networks all say private IP=
v4
    > addressing is not sufficient.
    > 2. For smaller enterprise edge networks then they may well be sitting=
 and
    > waiting, or following the above, time will tell.
    > 3. For "small-stub-networks" (SSN), where the number of connected dev=
ices
    > is manageable then clearly IPv4 private addressing is sufficient.  Pu=
blic
    > Wifi access being a perfect example of SSN, or any model using a cons=
umer
    > CPE I suppose. So this is the question for sunset4:
    > (A) Do we wish to advocate IPv6-only in this SSN scenario? in which c=
ase
    > all current and future client issues must be resolved (IPv4 literals)
    > such that the clients work in the absence of an IPv4 address? This ca=
se
    > is typified by NAT64/DNS64, other transition mechanisms are available=
.
    > (B) Do we wish to advocate dualstack networking to the client in this=
 SSN
    > scenario? Avoid client issues by providing them with a GUA and a IPv4
    > private? In which case the transition technology (held within the CPE=
)
    > needs to enable dualstack on the access side but on the provider side=
,
    > cope with only an IPv6-only provider connection. 464xlat in the CPE (=
like
    > 464xlat based tethering from a cellular handset) is an example of a
    > transition technology in this family, others are available.
    >
    > Both of these SSN approaches assume that within the core of the inter=
net
    > their remains the legacy IPv4-only content, which seems valid for
    > "consumer electronics networking" in general.
    > They differ on how we expect consumer electronics networking to evolv=
e
    > (or how we *want* it to evolve). We could advocate both for sure, but=
 not
    > sure if that helps move sunset4 forward!
    >
    > My opinion, take it or leave it, is that pragmatically, a SSN vision
    > based on (B) is less problematic. It is less dependent on moving a wh=
ole
    > collection of Consumer Electronics away from today's deficient state,
    > because (A) essential demands they work in absence of IPv4. This requ=
ires
    > concerted effort to remove the "IPv6-only" mode bugs that we know exi=
st.
    > The biggest problem with (A) is that you cannot make the network mode=
l
    > the compulsory model, until the majority of Consumer Electronics is f=
ully
    > ready, which creates another network provider chicken-egg problem. Yo=
u
    > can do OS by OS (something that a popular smartphone and PC vendor is
    > attempting with IPv6-only, NAT64) but network providers don't wish to
    > create individual network paradigms for each OS.
    >
    > Then we look back at 2., above. Enterprises moving to IPv6-only - do =
we
    > have some need and obligation within Sunset4 to push (A) to avoid
    > Enterprises being trapped in an IPv4 world? To leave dualstack in one
    > part of the edge (SSN) - does it undermine the benefits we are tellin=
g
    > enterprises on IPv6-only e.g. removal of dual address complexity.
    > Personally I believe this is only really an issue in practice where t=
he
    > enterprise is so large that the 20M private addresses are not suffici=
ent
    > for their organisation - and I think such enterprises are big enough =
to
    > progress this issue themselves if they wish IPv6-only to work for the=
m.
    > But if (A) is consensus then Sunset4 should start to define the clien=
t
    > requirements for absence of IPv4 in a SSN. And unlike provider networ=
ks,
    > enterprise networks own and manage the end to end network use case
    > themselves.
    >
    > The other concern for me about (A) is that I have already oversimplif=
ied
    > devices as "consumer electronics" as though they only fall into the h=
ands
    > of consumers in consumer usecases.
    > One of the big issues I foresee with the IPv6-only approach of certai=
n OS
    > vendor(s) is that something like a smartphone can be an end device wi=
th
    > its network interface servicing "on board Apps" (typical mobile
    > connectivity), but it can also be a network gateway when used for
    > tethering or "internet sharing". The end device (the device tethered =
on
    > the end of the wifi link) may actually be in an enterprise use case (=
"VPN
    > into an office network" for example). By making the SSN IPv6-only we =
may
    > risk placing requirements on the enterprise network (i.e. outside-in
    > connectivity like the VPN concentrator, may need certain functionalit=
y to
    > terminate an IPv6 IPsec VPN etc.). We may need the requirements for (=
A)
    > not just be about end devices but also coordinating requirements for
    > various gateways in enterprise networks? If you believe that, it is
    > another serious chicken-egg problem; do we need enterprise networks
    > upgraded before we can move to a solution for SSNs? (See the IPsec
    > comments in https://tools.ietf.org/html/rfc7269#section-6.1 but in th=
e
    > general case IPsec VPN is a fail, right?)
    >  I am very much in favour of the family of transition technologies th=
at
    > enable (B).
    >
    > SO I inferred a definition of the term SSN to suit my needs in this m=
ail.
    > What is really boils down to is that edge networks need some sort of =
CPE
    > or Gateway to the provider network. Do we want that CPE to provide
    > dualstack locally or IPv6-only when the provider addresses run out.
    > Back to the IETF SSID, what SSN vision do you wish to showcase? (I'd
    > prefer a choice for long term rather than "for next meeting" and I'd =
go
    > for something like Jordi's 464xlat in the CPE! Choose wisely :-)
    > If an IPv6-only SSID is just to showcase IPsec VPNs still failing, it=
 is
    > a bit of a waste of people's time).
    > Regards,
    > Nick
    >
    >
    >
    >
    >
    > -----Original Message-----
    > From: sunset4 mailto:sunset4-bounces@ietf.org On Behalf Of JORDI PALE=
T
    > MARTINEZ
    > Sent: 07 October 2016 21:02
    > To:
    > Subject: Re: sunset4 Sunset4 work
    >
    >     On 10/7/16, 6:27 AM, "sunset4 on behalf of JORDI PALET MARTINEZ"
    > <sunset4-bounces@ietf.org on behalf of jordi.palet@consulintel.es> wr=
ote:
    >
    >     >This is what Im proposing. May be I miss explained it.
    >     >
    >     >NOT asking EVERY device in our network to HAVE 464XLAT client
    > (CLAT), but having ONLY our CPE to have it.
    >     >
    >     >Nodes will not notice anything.
    >     >
    >     >This is what is going to happen in the future in most of the
    > networks because they will not have IPv4 for every customer, so why n=
ot
    > trying it ourselves? Already happening in many cellular networks, lik=
e in
    > US, which are close to have 60% IPv6 traffic already.
    >
    >     You think 464xlat is what's going to happen in the future in most
    > networks?
    >     Mobile networks, yes, it's a primary transition mechanisms.
    >     Wi-fi networks operated by ISPs or enterprises are more likely to=
 use
    > NAT64, DS-Lite, or MAP, based on what I'm seeing people working on.
    >
    > I disagree in several points:
    > 1) 464XLAT is not only for cellular networks, just read the draft.
    > 2) It has been implemented by some CPE vendors. It can be run in Virt=
ual
    > Machines as well.
    > a. http://www.necat.co.jp/en/ipv6/index.html
    > b.
    > https://conference.apnic.net/__data/assets/pdf_file/0013/50701/34th_a=
pnic_
    > 464xlat.pdf
    > 3) Ive tested it in several ISP network. Trials at the time being, bu=
t
    > coming into production.
    > 4) NAT64 is WORST than 464XLAT. NAT64 doesnt sort out the problems fo=
r
    > apps using literals. 464XLAT sort it out. Yes, NAT64 was developed fi=
rst,
    > but thats the reason 464XLAT was needed, because not everything was
    > working in NAT64.
    > 5) If you dont trust 464XLAT, then you cant trust in NAT64, because i=
s
    > just an incomplete version of 464XLAT.
    >
    > I agree with you that DS-Lite and MAP are other choices, comparable w=
ith
    > 464XLAT. They will be a better test, for sure than just NAT64.
    >
    > If you want something more lightweight than DS-Lite, probably will be
    > better to use lw4o6.
    >
    > Just to make sure it has been understood: Im not asking to implement
    > anything in the clients of our network. Nobody needs to install anyth=
ing.
    > We just need to have a VM or a set of them if we dont trust on the
    > hardware performance, as the CPE router of the IETF SSIDs that we wan=
t to
    > run this. This VM need to incorporate the CLAT client. Our network wi=
ll
    > behave as an enterprise network which as only IPv6 native connectivit=
y to
    > Internet, and the ISP (in this case our own network) will running the
    > PLAT (NAT64/DNS64).
    >
    > If you still want to try the NAT64 one more, you can have the NAT64 S=
SID,
    > that has been already tested in all the RIR meetings, etc. But this w=
ill
    > not run any apps that use literals, old APIs, etc.
    >
    >     My fear with 464xlat is that it's largely untested in environment=
s
    > like the IETF. I would not support making it the default SSID. We've =
had
    > a NAT64 SSID for several years; it could be promoted to default, if w=
e
    > can demonstrate with confidence that everyone can still get their wor=
k
    > done.
    >
    >  NAT64 as default is not and option. It breaks everything using liter=
als.
    > We want to have a good experience I guess, and be able to detect what
    > will fail in the future (logging CLAT and NAT64/DNS64 usage), not bre=
ak
    > the IETF network.
    >
    >     Lee
    >
    >     >
    >     >Saludos,
    >     >Jordi
    >     >
    >     >
    >     >-----Mensaje original-----
    >     >De: sunset4 <sunset4-bounces@ietf.org> en nombre de Philip Hombu=
rg
    > <pch-sunset4-1@u-1.phicoh.com>
    >     >Responder a: <pch-sunset4-1@u-1.phicoh.com>
    >     >Fecha: viernes, 7 de octubre de 2016, 12:04
    >     >Para: <sunset4@ietf.org>
    >     >CC: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
    >     >Asunto: Re: sunset4 Sunset4 work
    >     >
    >     >    In your letter dated Thu, 06 Oct 2016 23:28:32 +0000 you wro=
te:
    >     >    > Nastygram.  So make the default IETF SSIDs IPv6-only or
    > (+NAT64)
    >     >    > if you want.  Then have the ietf-legacy network, which wou=
ld
    > give
    >     >    > you IPv4 and a portal page penalty that you have to state =
the
    > nature
    >     >    > why you have to use this network and cant live on the defa=
ult
    > one.
    >     >    > Id be so curious to see what happens when people finally h=
ave
    > to
    >     >    > start thinking about it.. and open internal tickets ..  It=
 was
    >     >    > great fun doing it 6-ish years ago, ..
    >     >
    >     >    Personally, I consider offering NAT64 over wifi quite absurd=
.
    > The obvious
    >     >    way to provide access to legacy IPv4 is some form of NAT4. H=
ow
    > it is
    >     >    transported over the rest of the network is upto the network
    > operator. But
    >     >    the obvious interface is RFC 894.
    >     >
    >     >    So on networks that promote NAT64 (FOSDEM has this setup for
    > quite a number of
    >     >    years now) I just connect to the legacy network. Their legac=
y
    > network has
    >     >    perfectly fine IPv6, so I consider it way better than the NA=
T64
    > that
    >     >    'everybody' likes to push.
    >     >
    >     >    For the specific mobile weirdness, NAT64 make sense. But
    > everywhere else,
    >     >    requiring every device to have 464xlat to deal with IPv4
    > literals is just
    >     >    bad engineering. If your backbone is IPv6-only, then the obv=
ious
    > solution
    >     >    is to deal with this in CPEs, wifi access points, etc. Not t=
o
    > require all
    >     >    hosts to know the details of your network.
    >     >
    >     >
    >     >    _______________________________________________
    >     >    sunset4 mailing list
    >     >    sunset4@ietf.org
    >     >    https://www.ietf.org/mailman/listinfo/sunset4
    >     >
    >     >
    >     >
    >     >
    >     >
    >     >**********************************************
    >     >IPv4 is over
    >     >Are you ready for the new Internet ?
    >     >http://www.consulintel.es
    >     >The IPv6 Company
    >     >
    >     >This electronic message contains information which may be privil=
eged
    > or confidential. The information is intended to be for the use of the
    > individual(s) named above. If you are not the intended recipient be a=
ware
    > that any disclosure, copying, distribution or use of the contents of =
this
    > information, including attached files, is prohibited.
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    >     >
    >     >
    >     >_______________________________________________
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    >     >sunset4@ietf.org
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    >
    >
    >
    >
    >
    >
    > **********************************************
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    > Are you ready for the new Internet ?
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    > The IPv6 Company
    >
    > This electronic message contains information which may be privileged =
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    > information, including attached files, is prohibited.
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    >
    >
    > _______________________________________________
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    >
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    > This email contains BT information, which may be privileged or
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    > If you're not the intended recipient, note that disclosing, copying,
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    > If you've received this email in error, please let me know immediatel=
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    > the email address above. Thank you.
    >
    > We monitor our email system, and may record your emails.
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   =20
    --=20
    Mark Andrews, ISC
    1 Seymour St., Dundas Valley, NSW 2117, Australia
    PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org
   =20
    _______________________________________________
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**********************************************
IPv4 is over
Are you ready for the new Internet ?
http://www.consulintel.es
The IPv6 Company

This electronic message contains information which may be privileged or con=
fidential. The information is intended to be for the use of the individual(=
s) named above. If you are not the intended recipient be aware that any dis=
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From nobody Tue Oct 18 09:45:14 2016
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Date: Tue, 18 Oct 2016 12:45:10 -0400
From: Lee Howard <Lee@asgard.org>
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Subject: [sunset4] draft-howard-ipv6-ietf "IETF: End Work on IPv4"
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Submitted for discussion:  https://tools.ietf.org/html/draft-howard-ipv6-ietf-00

This may look like things we've talked about before. I hope it reflects what the WG has consensus on, but it will be interesting to discuss it in Seoul.

It is very, very short.


Lee



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<html><head></head><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: s=
pace; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size:=
 14px; font-family: Calibri, sans-serif;"><div>Submitted for discussion: &nb=
sp;<a href=3D"https://tools.ietf.org/html/draft-howard-ipv6-ietf-00">https://t=
ools.ietf.org/html/draft-howard-ipv6-ietf-00</a></div><div><br></div><div>Th=
is may look like things we've talked about before. I hope it reflects what t=
he WG has consensus on, but it will be interesting to discuss it in Seoul.</=
div><div><br></div><div>It is very, very short.</div><div><br></div><div><br=
></div><div>Lee</div><div><br></div><div><div><div id=3D"MAC_OUTLOOK_SIGNATURE=
"></div></div></div></body></html>

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From nobody Fri Oct 21 16:26:27 2016
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Cc: sunset4@ietf.org, terry.manderson@icann.org
Subject: [sunset4] sunset4 - Requested session has been scheduled for IETF 97
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Dear Marc Blanchet,

The session(s) that you have requested have been scheduled.
Below is the scheduled session information followed by
the original request. 

sunset4 Session 1 (1:00:00)
    Thursday, Morning Session II 1110-1210
    Room Name: Studio 2 size: 80
    ---------------------------------------------
    


Request Information:


---------------------------------------------------------
Working Group Name: Sunsetting IPv4
Area Name: Internet Area
Session Requester: Marc Blanchet

Number of Sessions: 1
Length of Session(s):  1 Hour
Number of Attendees: 50
Conflicts to Avoid: 
 First Priority: v6ops intarea homenet dhc




Special Requests:
  monday or tuesday
---------------------------------------------------------

