Re: [homegate] HOMENET working group proposal
Fernando Gont <fernando@gont.com.ar> Thu, 30 June 2011 02:18 UTC
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Date: Wed, 29 Jun 2011 23:18:27 -0300
From: Fernando Gont <fernando@gont.com.ar>
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To: Jari Arkko <jari.arkko@piuha.net>
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Cc: "homegate@ietf.org" <homegate@ietf.org>, IETF Discussion <ietf@ietf.org>
Subject: Re: [homegate] HOMENET working group proposal
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Hi, Jari, My high level comment/question is: the proposed charter seems to stress that IPv6 is the driver behind this potential wg effort... however, I think that this deserves more discussion -- it's not clear to me why/how typical IPv6 home networks would be much different from their IPv4 counterparts. Bellow you'll find some comments/questions about the proposed charter. They are not an argument against or in favour of the creation of the aforementioned wg, but rather comments and/or requests for clarification... On 06/29/2011 05:47 AM, Jari Arkko wrote: [....] > o Service providers are deploying IPv6, and support for IPv6 is > increasingly available in home gateway devices. While IPv6 resembles > IPv4 in many ways, it changes address allocation principles and allows > direct IP addressability and routing to devices in the home from the > Internet. This is a promising area in IPv6 that has proved challenging > in IPv4 with the proliferation of NAT. NAT devices involve two related but different issues: * address translation * an implicit "allow only return traffic" firewall-like functionality One would hope/expect that the former will be gone with IPv6. However, I don't think the latter will. As a result, even when you could "address" nodes that belong to the "home network", you probably won't be able to get your packets to them, unless those nodes initiated the communication instance. For instance (and of the top of my head), this functionality is even proposed in the "simple security" requirements that had been produced by v6ops. > o End-to-end communication is both an opportunity and a concern as it > enables new applications but also exposes nodes in the internal > networks to receipt of unwanted traffic from the Internet. Firewalls > that restrict incoming connections may be used to prevent exposure, > however, this reduces the efficacy of end-to-end connectivity that > IPv6 has the potential to restore. I personally consider this property of "end-to-end connectivity" as "gone". -- among other reasons, because it would require a change of mindset. I'm more of the idea that people will replicate the architecture of their IPv4 networks with IPv6, in which end-systems are not reachable from the public Internet. Thanks! -- Fernando Gont e-mail: fernando@gont.com.ar || fgont@acm.org PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1
- Re: [homegate] [fun] HOMENET working group propos… Weil, Jason
- [homegate] HOMENET working group proposal Jari Arkko
- Re: [homegate] HOMENET working group proposal Fernando Gont
- Re: [homegate] HOMENET working group proposal Cameron Byrne
- Re: [homegate] HOMENET working group proposal Fernando Gont
- Re: [homegate] HOMENET working group proposal Keith Moore
- Re: [homegate] HOMENET working group proposal Dan White
- Re: [homegate] HOMENET working group proposal Mikael Abrahamsson
- Re: [homegate] HOMENET working group proposal Fernando Gont
- Re: [homegate] HOMENET working group proposal Mikael Abrahamsson
- Re: [homegate] HOMENET working group proposal Mark Townsley
- Re: [homegate] HOMENET working group proposal Fernando Gont
- Re: [homegate] HOMENET working group proposal erik.taraldsen
- Re: [homegate] HOMENET working group proposal Stephen [kiwin] PALM
- Re: [homegate] HOMENET working group proposal Stephen [kiwin] PALM
- Re: [homegate] [fun] HOMENET working group propos… Stephen [kiwin] PALM
- Re: [homegate] HOMENET working group proposal Mark Townsley
- Re: [homegate] [fun] HOMENET working group propos… Fernando Gont
- Re: [homegate] HOMENET working group proposal Keith Moore
- Re: [homegate] [fun] HOMENET working group propos… Keith Moore
- Re: [homegate] HOMENET working group proposal Mark Townsley
- Re: [homegate] [fun] HOMENET working group propos… james woodyatt
- Re: [homegate] [fun] HOMENET working group propos… Martin Focazio
- Re: [homegate] HOMENET working group proposal Keith Moore
- Re: [homegate] [fun] HOMENET working group propos… Robert Raszuk
- Re: [homegate] [fun] HOMENET working group propos… Mikael Abrahamsson
- Re: [homegate] [fun] HOMENET working group propos… Mark Townsley
- Re: [homegate] [fun] HOMENET working group propos… JP Vasseur (jvasseur)
- Re: [homegate] HOMENET working group proposal Mark Townsley
- Re: [homegate] HOMENET working group proposal Keith Moore
- Re: [homegate] [fun] HOMENET working group propos… james woodyatt
- Re: [homegate] HOMENET working group proposal Roger Jørgensen
- Re: [homegate] HOMENET working group proposal ken carlberg
- Re: [homegate] HOMENET working group proposal Fred Baker
- Re: [homegate] HOMENET working group proposal ken carlberg
- Re: [homegate] HOMENET working group proposal Mark Townsley
- Re: [homegate] HOMENET working group proposal Randy Turner