> On 3 Jun 2016, at 2:03 AM, JORDI PALET MARTINEZ <[email protected]> > wrote: > > I was considering the background of the article: cellular networks with > smartphones. I don’t think even the test mentioned in the article considers > 3G/4G modems.
the vast majority of 3G internet access in Africa is cellular network direct to smartphone. 3G/4G modems are growing but still a drop compared to direct smartphone access > > So in this case, you don’t run NAT444, just NAT44. that’s assuming that the end-devices are IPv6 capable right? > > You don’t need to “manually” check the phone of each uses. It works creating > a dual-stack APN and an IPv6-only APN, you can detect the cellular phones/OS > version and configure to them one or the other. So users with IPv6-enabled > phones (using 464XLAT such as Windows and Android, or with IPv6-enabled apps > such as iOS), will use IPv6-only connectivity (but they get dual-stack > service in the phone). > > Smarpthones not capable of IPv6-only, or not IPv6-enabled at all, will use > the dual-stack APN. You still need to have a reasonable device profile to at least know if the clients won’t get side-tracked by dual-stack APNs (there’s quite a lot of old 'smartphones' out here with pre-happy-eyeballs code. ------------------------------------------------------ Mukom Akong T. Head of Capacity Building AFRINIC Ltd Twitter: @perfexcellent | @AFRINICTraining
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