On Wed, Apr 29, 2020 at 5:27 PM Thomas Scott <mr.thomas.scott@gmail.com> wrote:
cell-phone environment. A classic small ISP fills a different niche.
I've dealt with traditional cable and fiber SP environments, but I'm curious how the architecture differs so drastically with T-Mobile to allow v6 to work so seamlessly. From working with their techs when turning up circuits, I don't feel like their architecture and the ones I've worked in differ too dramatically. My private cell service is through a tmo reseller, and I've only ever had a public v6 address on them.
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. https://www.internetsociety.org/resources/deploy360/2014/case-study-t-mobile... Regards, Bill Herrin -- William Herrin bill@herrin.us https://bill.herrin.us/
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 can influence. -- Brandon Martin
On Wed, Apr 29, 2020 at 7:17 PM Brandon Martin <lists.nanog@monmotha.net> wrote:
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 can influence. -- Brandon Martin
Correct, and T-Mobile uses this 464xlat approach for their home broadband product as well
And more and more CPE providers support it. See RFC8585. I inititally started using OpenWRT, but now I already got samples from several vendors. Regards, Jordi @jordipalet El 30/4/20 6:16, "NANOG en nombre de Ca By" <nanog-bounces@nanog.org en nombre de cb.list6@gmail.com> escribió: On Wed, Apr 29, 2020 at 7:17 PM Brandon Martin <lists.nanog@monmotha.net> wrote: 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 can influence. -- Brandon Martin Correct, and T-Mobile uses this 464xlat approach for their home broadband product as well ********************************************** IPv4 is over Are you ready for the new Internet ? http://www.theipv6company.com The IPv6 Company This electronic message contains information which may be privileged or confidential. The information is intended to be for the exclusive use of the individual(s) named above and further non-explicilty authorized disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited and will be considered a criminal offense. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited, will be considered a criminal offense, so you must reply to the original sender to inform about this communication and delete it.
participants (4)
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Brandon Martin -
Ca By -
JORDI PALET MARTINEZ -
William Herrin