nanog mailing list archives
Re: Looking for an IPv6 naysayer...
From: Benson Schliesser <bensons () queuefull net>
Date: Thu, 10 Feb 2011 10:05:54 -0600
On Feb 10, 2011, at 9:53 AM, Jack Bates wrote:
On 2/10/2011 8:36 AM, Benson Schliesser wrote:DS-lite is still CGN.It is still LSN, but it is not NAT444, and the failure rate reduces because of that. Also, DS-Lite guarantees that you have IPv6 connectivity. NAT444 makes no such assertion.
DS-lite *uses* IPv6 connectivity, it doesn't provide it. That's like saying 6rd or 6to4 "guarantees you have IPv4 connectivity". As for NAT444 (or double-NAT): One could just as easily deploy DS-lite with a NAT444 configuration. Or deploy CGN without NAT444 (e.g. CGN44, by managing subnets delegated to each subscriber). The two topics are related but separate. In terms of CGN44 versus NAT444, I'd like to see evidence of something that breaks in NAT444 but not CGN44. People seem to have a gut expectation that this is the case, and I'm open to the possibility. But testing aimed at demonstrating that breakage hasn't been very scientific, as discussed in the URLs I posted with my previous message. Cheers, -Benson
Current thread:
- Re: Looking for an IPv6 naysayer..., (continued)
- Re: Looking for an IPv6 naysayer... Owen DeLong (Feb 09)
- Re: Looking for an IPv6 naysayer... Iljitsch van Beijnum (Feb 09)
- Re: Looking for an IPv6 naysayer... Jack Bates (Feb 09)
- Re: Looking for an IPv6 naysayer... Robert E. Seastrom (Feb 09)
- Re: Looking for an IPv6 naysayer... Jack Bates (Feb 09)
- Re: Looking for an IPv6 naysayer... Mark Andrews (Feb 09)
- Re: Looking for an IPv6 naysayer... Jens Link (Feb 10)
- Re: Looking for an IPv6 naysayer... Jens Link (Feb 10)
- Re: Looking for an IPv6 naysayer... Benson Schliesser (Feb 10)
- Re: Looking for an IPv6 naysayer... Jack Bates (Feb 10)
- Re: Looking for an IPv6 naysayer... Benson Schliesser (Feb 10)
- Re: Looking for an IPv6 naysayer... Jack Bates (Feb 10)
- Re: Looking for an IPv6 naysayer... Owen DeLong (Feb 10)
- NAT444 rumors (was Re: Looking for an IPv6 naysayer...) Benson Schliesser (Feb 10)
- Re: [arin-ppml] NAT444 rumors (was Re: Looking for an IPv6 naysayer...) Chris Grundemann (Feb 17)
- RE: [arin-ppml] NAT444 rumors (was Re: Looking for an IPv6 naysayer...) Dan Wing (Feb 21)
- Re: [arin-ppml] NAT444 rumors (was Re: Looking for an IPv6 naysayer...) Owen DeLong (Feb 21)
- RE: [arin-ppml] NAT444 rumors (was Re: Looking for an IPv6 naysayer...) Dan Wing (Feb 21)
- Re: [arin-ppml] NAT444 rumors (was Re: Looking for an IPv6 naysayer...) Chris Grundemann (Feb 21)
- Re: [arin-ppml] NAT444 rumors (was Re: Looking for an IPv6 naysayer...) Benson Schliesser (Feb 22)
- Re: [arin-ppml] NAT444 rumors (was Re: Looking for an IPv6 naysayer...) Randy Bush (Feb 22)