On Thu, Aug 27, 2020 at 1:00 AM Brian Johnson <brian.john...@netgeek.us> wrote:
> I hope I’m not adding to any confusion. I find this conversation to be > interesting and want it to be productive. I have not deployed 464XLAT and > am only aware of android phones having a proper client. Platforms with CLAT include: Android (since 4.3) Apple iOS (2 versions, HEv2 and real xlat) Cisco iOS (this is just their SIIT) Windows 10 (scoped only work on LTE modems) Linux and OpenWRT FreeBSD I have worked with so many CPE devices and know that most have solid > deployments of the required CLAT client. I also predict this will not > change any time soon. I live in “actually works and is solid” world. Not in > “I wish this would work” world. > > > > > > > On Aug 27, 2020, at 2:50 AM, Mark Andrews <ma...@isc.org> wrote: > > > > > > > > > > > >> On 27 Aug 2020, at 17:33, Brian Johnson <brian.john...@netgeek.us> > wrote: > > >> > > >> If an ISP provides dual-stack to the customer, then the customer only > uses IPv4 when required and then will only use NAT444 to compensate for a > lack of IPv4 address space when an IPv4 connection is required. What am I > missing? > > > > > > Lots of assumptions people are making about how equipment is configured > which is causing people to talk past each other. > > > > > >>> On Aug 27, 2020, at 1:20 AM, Mark Andrews <ma...@isc.org> wrote: > > >>> > > >>> > > >>> > > >>>> On 27 Aug 2020, at 15:58, Bjørn Mork <bj...@mork.no> wrote: > > >>>> > > >>>> Brian Johnson <brian.john...@netgeek.us> writes: > > >>>> > > >>>>>> 1) It needs *much less* IPv4 addresses (in the NAT64) for the same > number of customers. > > >>>>> > > >>>>> I cannot see how this is even possible. If I use private space > > >>>>> internally to the CGN, then the available external space is the same > > >>>>> and the internal customers are the same and I can do the same over > sub > > >>>>> ratio under both circumstance. Tell me how the math is different. > > >>>> > > >>>> Because NAT64 implies DNS64, which avoids NATing any dual stack > service. > > >>>> This makes a major difference today. > > >>> > > >>> Only if you don’t have a CLAT installed and for home users that is > suicide > > >>> at there is too much IPv4 only equipment. > > >>> > > >>> What really pushes traffic to IPv6 is that hosts prefer IPv6 by > default. This > > >>> works as long as the clients see a dual stack network. > > >>> > > >>> And no NAT64 does not imply DNS64. You can publish a ipv4only.arpa > zone with > > >>> the mappings for the NAT64. There are now also RA options for > publishing these > > >>> mappings. There are also DHCPv6 options. > > >>> > > >>> Mark > > >>> > > >>>> Bjørn > > >>> > > >>> -- > > >>> Mark Andrews, ISC > > >>> 1 Seymour St., Dundas Valley, NSW 2117, Australia > > >>> PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org > > >>> > > >> > > > > > > -- > > > Mark Andrews, ISC > > > 1 Seymour St., Dundas Valley, NSW 2117, Australia > > > PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org > > > > > > >
