Re: [Softwires] TR: I-D Action:draft-lee-6man-ra-dslite-00.txt

2010-10-07 Thread Maglione Roberta
Hello Med, I have a question about the deployment scenario you have in mind for this draft. In the document you say: A service provider may want to deploy DS-lite without using DHCP., but it is not completely clear to me what is the SLAAC only scenario you are referring to. I'm thinking

[Softwires] comments on draft-despres-softwire-6a44-00

2010-10-07 Thread Washam Fan
Hi, Thanks for your work on this issue. I have some comments: 1. From 6a44 address format, the 6a44 client can only act as a IPv6 host but not IPv6 node which could attach to a IPv6 LAN. I think this is different from draft-lee-softwire-6rd-udp. 2. For host to host 6a44 communication, I think

Re: [Softwires] comments on draft-despres-softwire-6a44-00

2010-10-07 Thread Rémi Després
Thanks Washam for your detailed comments. Personal reaction below. Le 7 oct. 2010 à 13:46, Washam Fan a écrit : Hi, Thanks for your work on this issue. I have some comments: 1. From 6a44 address format, the 6a44 client can only act as a IPv6 host but not IPv6 node which could attach

Re: [Softwires] [v4tov6transition] ISP support of Native IPv6 across NAT44 CPEs -Proposed 6a44 Specification

2010-10-07 Thread Rémi Després
Le 7 oct. 2010 à 02:56, Yiu L. Lee a écrit : Hi Fred, This is an interesting idea, but I will argue this is as complex as L2TP softwire. When Brian, Remi and I discussed, we would like to have a simple and cost effective technology that could be deployed by SP w/o upgrading the CPE.

Re: [Softwires] [v4tov6transition] ISP support of Native IPv6 across NAT44 CPEs -Proposed 6a44 Specification

2010-10-07 Thread Ole Troan
This is an interesting idea, but I will argue this is as complex as L2TP softwire. When Brian, Remi and I discussed, we would like to have a simple and cost effective technology that could be deployed by SP w/o upgrading the CPE. Indeed. We need some reliable and easily deployable

Re: [Softwires] [v4tov6transition] ISP support of Native IPv6 across NAT44 CPEs -Proposed 6a44 Specification

2010-10-07 Thread Rémi Després
Le 7 oct. 2010 à 15:45, Ole Troan a écrit : This is an interesting idea, but I will argue this is as complex as L2TP softwire. When Brian, Remi and I discussed, we would like to have a simple and cost effective technology that could be deployed by SP w/o upgrading the CPE. Indeed. We

Re: [Softwires] ISP support of Native IPv6 across NAT44 CPEs - Proposed 6a44 Specification

2010-10-07 Thread Rémi Després
Le 7 oct. 2010 à 05:21, Olivier Vautrin a écrit : Hi all, very interesting draft. I think it would be worthwhile to elaborate a bit more in the draft why Teredo is not viable and thus an alternative is needed. In this draft, I see 2 issues described for Teredo: 1) clients sometimes

Re: [Softwires] [v4tov6transition] ISP support of Native IPv6across NAT44 CPEs -Proposed 6a44 Specification

2010-10-07 Thread Templin, Fred L
Hi Yiu, -Original Message- From: v4tov6transition-boun...@ietf.org [mailto:v4tov6transition-boun...@ietf.org] On Behalf Of Yiu L. Lee Sent: Wednesday, October 06, 2010 5:57 PM To: Templin, Fred L; Brian E Carpenter; Ole Troan Cc: Softwires; v4tov6transit...@ietf.org Subject: Re:

Re: [Softwires] [v4tov6transition] ISP support of Native IPv6 across NAT44 CPEs -Proposed 6a44 Specification

2010-10-07 Thread Ole Troan
Remi, [...] ISPs that aren't concerned with what their customer would like to have will eventually face competition. we are in complete agreement of the end goal. it is just how we get there... A key point is that supporting 6a44 is very inexpensive compared to other supports they have

Re: [Softwires] [v4tov6transition] ISP support of Native IPv6 across NAT44 CPEs -Proposed 6a44 Specification

2010-10-07 Thread Brian E Carpenter
I can't say how bad operators want to support IPv6 over legacy CPEs. If there is demand. Can somebody (except me :-) ) speak it out? Well, when we surveyed 31 ISPs for draft-ietf-v6ops-isp-scenarios, we found When asked which types of equipment are unable to support IPv6, the most common answer

Re: [Softwires] ISP support of Native IPv6 across NAT44 CPEs - Proposed 6a44 Specification

2010-10-07 Thread Brian E Carpenter
Olivier, Rémi has mainly answered you. In particular, the operational problems caused by missing Teredo servers don't just harm the customers of the ISP concerned; like missing 6to4 relays, they also harm customers of *other* ISPs. 6a44 doesn't have this problem. I think it would be worthwhile

Re: [Softwires] [v4tov6transition] ISP support of Native IPv6 across NAT44 CPEs -Proposed 6a44 Specification

2010-10-07 Thread Cameron Byrne
On Thu, Oct 7, 2010 at 5:07 PM, Brian E Carpenter brian.e.carpen...@gmail.com wrote: I can't say how bad operators want to support IPv6 over legacy CPEs. If there is demand. Can somebody (except me :-) ) speak it out? Well, when we surveyed 31 ISPs for draft-ietf-v6ops-isp-scenarios, we found

Re: [Softwires] DHCPv6 AFTR name option is needed

2010-10-07 Thread Tomasz Mrugalski
Roberta, Mohamed, AFTR name option was removed as a result of a concerns raised by Jari Arkko and Ralph Droms during IESG review. They were very clear that defining two options to configure the same parameter is not acceptable. Regarding scenario mentioned by Mohamed, since you are already

Re: [Softwires] DHCPv6 AFTR name option is needed

2010-10-07 Thread mohamed.boucadair
Dear Tomek, Thank you for this clarification. Providing the IP address in the option is not flexible enough and especially it may not be recommended to achieve load balancing. Otherwise the DHCPv6 server should act as a load balancer, which is not currently our preference. To illustrate more