lists.nanog at monmotha.net
Thu Apr 30 02:16:04 UTC 2020
On 4/29/20 10:12 PM, William Herrin wrote:
>> What allows them to work with v6 in such an efficient manner?
> A piece of client software is installed on every phone that presents
> an IPv4 address to the phone and then translates packets to IPv6 for
> relay over the network. This works because T-Mobile has considerable
> control over the phone.
FWIW, this software component (the CLAT) can also be on the CPE edge
router which many ISPs either control outright these days or at least
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