
From teemu.savolainen@nokia.com  Tue Feb  1 07:00:46 2011
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From: <teemu.savolainen@nokia.com>
To: <Ted.Lemon@nominum.com>, <john_brzozowski@cable.comcast.com>, <dhcwg@ietf.org>
Thread-Topic: draft-ietf-dhc-pd-exclude-01 ready for WGLC?
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Subject: [dhcwg] draft-ietf-dhc-pd-exclude-01 ready for WGLC?
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Dear DHC WG & chairs,

We think the I-D "Prefix Exclude Option for DHCPv6-based Prefix
Delegation" (draft-ietf-dhc-pd-exclude-01) is ready and in a good
enough shape for a WGLC. The I-D got also recently referenced from 3GPP
Rel-10 specs side (3GPP TS23.060 version 10.2.0 dated 20-12-2010, and
3GPP TS23.401 version 10.2.1 dated 04-01-2011).

We would like to solicit WG for further comments and if none then=20
we would like to request WGLC for this document.

https://datatracker.ietf.org/doc/draft-ietf-dhc-pd-exclude/

Thank you,

Teemu

From Internet-Drafts@ietf.org  Fri Feb  4 08:00:03 2011
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Subject: [dhcwg] I-D Action:draft-ietf-dhc-duid-uuid-03.txt
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--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Dynamic Host Configuration Working Group of the IETF.


	Title           : Definition of the UUID-based DHCPv6 Unique Identifier (DUID-UUID)
	Author(s)       : T. Narten, J. Johnson
	Filename        : draft-ietf-dhc-duid-uuid-03.txt
	Pages           : 6
	Date            : 2011-02-04

This document defines a new DHCPv6 Unique Identifier (DUID) type,
called DUID-UUID.  DUID-UUIDs are derived from the already
standardized UUID format.  DUID-UUID makes it possible for devices to
use UUIDs to identify themselves to DHC servers and vice versa.
UUIDs are globally unique and readily available on many systems,
making them convenient identifiers to leverage within DHCP.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-dhc-duid-uuid-03.txt

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From narten@us.ibm.com  Mon Feb  7 12:39:33 2011
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Comments: In-reply-to Internet-Drafts@ietf.org message dated "Fri, 04 Feb 2011 08:00:01 -0800."
Date: Mon, 07 Feb 2011 15:39:21 -0500
From: Thomas Narten <narten@us.ibm.com>
Subject: Re: [dhcwg] I-D Action:draft-ietf-dhc-duid-uuid-03.txt
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DHC Chairs,

This version incorporates comments from Thomas Huth and Stephen Jacob
during the WGLC.

AFAIK, there are no outstanding issues with this document.

Is there anything else that needs to be done? Or can we pass it on to
the IESG for further processing?

Thomas

Internet-Drafts@ietf.org writes:

> --NextPart

> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the Dynamic Host Configuration Working Group of the IETF.


> 	Title           : Definition of the UUID-based DHCPv6 Unique Identifier (DUID-UUID)
> 	Author(s)       : T. Narten, J. Johnson
> 	Filename        : draft-ietf-dhc-duid-uuid-03.txt
> 	Pages           : 6
> 	Date            : 2011-02-04

> This document defines a new DHCPv6 Unique Identifier (DUID) type,
> called DUID-UUID.  DUID-UUIDs are derived from the already
> standardized UUID format.  DUID-UUID makes it possible for devices to
> use UUIDs to identify themselves to DHC servers and vice versa.
> UUIDs are globally unique and readily available on many systems,
> making them convenient identifiers to leverage within DHCP.

> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-ietf-dhc-duid-uuid-03.txt

> Internet-Drafts are also available by anonymous FTP at:
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> Internet-Draft.

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From leaf.y.yeh@huawei.com  Wed Feb  9 19:28:01 2011
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Date: Thu, 10 Feb 2011 03:27:59 +0000
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FYI, the I.D. has been updated into Ver. -02. 
It is ready to call for your comments again. 
The Changes Log is at Section 10.


Best regards,
Leaf


-----Original Message-----
From: IETF I-D Submission Tool [mailto:idsubmission@ietf.org] 
Sent: Wednesday, February 09, 2011 3:58 PM
To: leaf yeh
Cc: tena@huawei.com; huj@ctbri.com.cn; sunqiong@ctbri.com.cn
Subject: New Version Notification for draft-yeh-dhc-dhcpv6-prefix-pool-opt-02


A new version of I-D, draft-yeh-dhc-dhcpv6-prefix-pool-opt-02.txt has been successfully submitted by Leaf Yeh and posted to the IETF repository.

Filename:	 draft-yeh-dhc-dhcpv6-prefix-pool-opt
Revision:	 02
Title:		 Prefix Pool Option for DHCPv6 Relay Agent
Creation_date:	 2011-02-09
WG ID:		 Independent Submission
Number_of_pages: 12

Abstract:
The Prefix Pool option provides an automatic mechanism for the
messages exchange between DHCPv6 server and DHCPv6 relay agent.  The
information about prefix pools maintained on DHCPv6 server can be
transferred from server to relay agent through this DHCPv6 option to
support the necessary route aggregation on the provide edge router,
which has a huge number of routes pointing to the customer networks.
                                                                                  


The IETF Secretariat.



From suresh.krishnan@ericsson.com  Thu Feb 10 15:49:35 2011
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Subject: Re: [dhcwg] Protocol Action: 'Lightweight DHCPv6 Relay Agent' to Proposed Standard (draft-ietf-dhc-dhcpv6-ldra-03.txt)
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Hi David,

David Hankins wrote:
> On Mon, Jan 31, 2011 at 3:03 PM, Suresh Krishnan 
> <suresh.krishnan@ericsson.com <mailto:suresh.krishnan@ericsson.com>> wrote:
> 
>     Thanks for the comments.
> 
> 
> Sorry I only noticed this in the IESG diff.

No problems. But unfortunately, we cannot make any edits right now since 
the draft is in the RFC Editor queue. We will try to make the changes at 
the first possible chance.

>  
> 
>     What you say is correct (the LDRA also listens to network-originated
>     traffic), but the text in the Security Considerations section was
>     intended to apply only to the client-initiated IPv6 traffic and does
>     not talk about the network-originated traffic. In the deployment
>     scenarios we were targeting, the network-facing interfaces were
>     considered to be trusted and hence there was no need to perform
>     rate-limiting on network-originated traffic. Do you see a need to
>     rate-limit network-originated traffic as well?
> 
> 
> That is what I expected - but I think someone could easily misinterpret 
> the existing text.  If you have the time or energy to try and make the 
> statement a bit more direct...I would open with the recommendation to 
> rate-limit client-originated traffic and close with admitting the only 
> client-originated traffic the LDRA receives is the one address/port pair 
> mentioned.

Sounds like a good idea. Since the change is purely editorial, we will 
try to propose the changes for clarification when the draft gets to 
AUTH48 and see if the wg and the ADs are OK with the nature of the changes.

Thanks
Suresh


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RFC4477 described issues identified with dual IP version DHCP interactions 
and also promotes potential 
solutions to solve these issues.one solution may be to modify DHCPv6 to be 
able to return IPv4 information.

This solution is hinted at in the DHCPv6 specification<xref 
target="RFC3315"/>: "If there is sufficient 
interest and demand,integration can be specified in a document that 
extends DHCPv6 to carry IPv4 
addresses and configuration information." This solution may allow DHCP for 
IPv4 to be completely replaced 
by DHCPv6 with additional IPv4 information options, for dual-stack nodes.

RFC4477 described the advantages and protential problems about the 
solution.

Do you think it make sense to develop this solution in details? It will 
solve the problems,the content will include:
/the client's implementation and behavior
/the server's implementation and behavior
/the isp network's behavior
/compatibility and potential protocl traslation
/location identify and AAA

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<br><font size=2 face="sans-serif">RFC4477 described issues identified
with dual IP version DHCP interactions and also promotes potential </font>
<br><font size=2 face="sans-serif">solutions to solve these issues.one
solution may be to modify DHCPv6 to be able to return IPv4 information.</font>
<br>
<br><font size=2 face="sans-serif">This solution is hinted at in the DHCPv6
specification&lt;xref target=&quot;RFC3315&quot;/&gt;: &quot;If there is
sufficient </font>
<br><font size=2 face="sans-serif">interest and demand,integration can
be specified in a document that extends DHCPv6 to carry IPv4 </font>
<br><font size=2 face="sans-serif">addresses and configuration information.&quot;
This solution may allow DHCP for IPv4 to be completely replaced </font>
<br><font size=2 face="sans-serif">by DHCPv6 with additional IPv4 information
options, for dual-stack nodes.</font>
<br>
<br><font size=2 face="sans-serif">RFC4477 described the advantages and
protential problems about the solution.</font>
<br>
<br><font size=2 face="sans-serif">Do you think it make sense to develop
this solution in details? It will solve the problems,the content will include:</font>
<br><font size=2 face="sans-serif">/the client's implementation and behavior</font>
<br><font size=2 face="sans-serif">/the server's implementation and behavior</font>
<br><font size=2 face="sans-serif">/the isp network's behavior</font>
<br><font size=2 face="sans-serif">/compatibility and potential protocl
traslation</font>
<br><font size=2 face="sans-serif">/location identify and AAA</font><br><pre>
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Subject: [dhcwg] Assigning IPv4-compatible IPv6 addresses via DHCPv6 server
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Dear All,
I am trying to configure DHCPv6 server to assign IPv4-compatible IPv6 addresses for dual stack hosts. The server must be configured by administrator with IPv6 prefix. The generated IPv6 addresses must be created like :

IPv6_prefix + IPv4_address+........

Is that possible to make DHCPv6 server capable to do that without configuring DHCPv6 clients?

Thank you,,


      
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<html><body><div style="color:#000; background-color:#fff, font-family:times new roman, new york, times, serif;font-size:12pt">Dear All,<br>I am trying to configure DHCPv6 server to assign IPv4-compatible IPv6 addresses for dual stack hosts. The server must be configured by administrator with IPv6 prefix. The generated IPv6 addresses must be created like :<br><br>IPv6_prefix + IPv4_address+........<br><br>Is that possible to make DHCPv6 server capable to do that without configuring DHCPv6 clients?<br><br>Thank you,,<br><br></div><br>







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Subject: Re: [dhcwg] What about using a single dhcpv6 server for dual-stack hosts to get ipv6/ipv4 settings?
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On Feb 14, 2011, at 4:43 PM, <hu.yuxing@zte.com.cn>  =
<hu.yuxing@zte.com.cn> wrote:
> RFC4477 described issues identified with dual IP version DHCP =
interactions and also promotes potential=20
> solutions to solve these issues.one solution may be to modify DHCPv6 =
to be able to return IPv4 information.=20

We've discussed that in the past and pretty much rejected it because it =
would add a lot of complexity and the functionality is only useful =
during the transitional period when hosts are running dual-stack.   Is =
there some reason why DHCPv4+DHCPv6 isn't an option?


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<html><head></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space; =
"><div><div>On Feb 14, 2011, at 4:43 PM, &lt;<a =
href=3D"mailto:hu.yuxing@zte.com.cn">hu.yuxing@zte.com.cn</a>&gt;&nbsp;&nb=
sp;&lt;<a =
href=3D"mailto:hu.yuxing@zte.com.cn">hu.yuxing@zte.com.cn</a>&gt; =
wrote:</div><blockquote type=3D"cite"><span class=3D"Apple-style-span" =
style=3D"border-collapse: separate; font-family: Helvetica; font-style: =
normal; font-variant: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; orphans: 2; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: =
0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0px; font-size: medium; "><font =
size=3D"2" face=3D"sans-serif">RFC4477 described issues identified with =
dual IP version DHCP interactions and also promotes potential<span =
class=3D"Apple-converted-space">&nbsp;</span></font><br><font size=3D"2" =
face=3D"sans-serif">solutions to solve these issues.one solution may be =
to modify DHCPv6 to be able to return IPv4 information.</font><span =
class=3D"Apple-converted-space">&nbsp;</span><br></span></blockquote></div=
><br><div>We've discussed that in the past and pretty much rejected it =
because it would add a lot of complexity and the functionality is only =
useful during the transitional period when hosts are running dual-stack. =
&nbsp; Is there some reason why DHCPv4+DHCPv6 isn't an =
option?</div><div><br></div></body></html>=

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Subject: [dhcwg] RFC 6148 on DHCPv4 Lease Query by Relay Agent Remote ID
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A new Request for Comments is now available in online RFC libraries.

        
        RFC 6148

        Title:      DHCPv4 Lease Query by Relay 
                    Agent Remote ID 
        Author:     P. Kurapati, R. Desetti,
                    B. Joshi
        Status:     Standards Track
        Stream:     IETF
        Date:       February 2011
        Mailbox:    kurapati@juniper.net, 
                    ramakrishnadtv@infosys.com, 
                    bharat_joshi@infosys.com
        Pages:      13
        Characters: 26185
        Updates:    RFC4388

        I-D Tag:    draft-ietf-dhc-leasequery-by-remote-id-09.txt

        URL:        http://www.rfc-editor.org/rfc/rfc6148.txt

Some relay agents extract lease information from the DHCP messages
exchanged between the client and DHCP server.  This lease information
is used by relay agents for various purposes like antispoofing and
prevention of flooding.  RFC 4388 defines a mechanism for relay
agents to retrieve the lease information from the DHCP server when
this information is lost.  The existing lease query mechanism is
data-driven, which means that a relay agent can initiate the lease
query only when it starts receiving data to and from the clients.  In
certain scenarios, this model is not scalable.  This document first
looks at issues in the existing mechanism and then proposes a new
query type, query by Remote ID, to address these issues.
[STANDARDS-TRACK]

This document is a product of the Dynamic Host Configuration Working Group of the IETF.

This is now a Proposed Standard Protocol.

STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol.  Distribution of this memo is unlimited.

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