[Cerowrt-devel] I got ipv6 on my cell tether this morning

[Cerowrt-devel] I got ipv6 on my cell tether this morning

[Dave Taht]

I got a new phone for christmas, and was surprised to see I finally had an IPv6
allocation on my tether. More surprising was seeing fc:: used... and
while my laptop
is not pingable via ipv6, nmap and netperf do work in this direction -
e2e connectivity finally. I don't know whether to be terrified or
pleased. At least I can finally run flent --socket-stats in the cloud
to my laptop.

Has anyone else been getting ipv6 on their tethers? This is on a
reseller of t-mobile....

daves-MacBook-Air-6:~ d$ traceroute6 www.lwn.net

traceroute6 to lwn.net (2600:3c03::f03c:91ff:fe82:68b2) from
2607:fb90:f36:1e19:5548:bbdf:7a2c:8c76, 64 hops max, 12 byte packets

 1  2607:fb90:f36:1e19::e5  3.818 ms  1.429 ms  1.360 ms

 2  2607:fb90:f36:1e19::12:454f:4740  141.507 ms  40.992 ms  58.074 ms

 3  fc00:420:81:23::2  42.083 ms  48.704 ms  48.964 ms

 4  fc00:420:81:123::1  59.405 ms  46.518 ms  42.336 ms

 5  fd00:976a:b698:4003::1  67.305 ms  47.872 ms  57.709 ms

 6  v6-six.t-mobile.com  61.281 ms  58.058 ms  50.518 ms

 7  2001:438:fffe::111d  53.861 ms  42.959 ms  50.656 ms

 8  ae4.cr5-sea2.ip6.gtt.net  53.146 ms  73.903 ms  51.252 ms

 9  2001:668::2:ffff:0:5995:b506  121.664 ms  135.243 ms  122.144 ms

10  2001:668::3:ffff:2:0:27e  109.114 ms  116.030 ms  116.262 ms

11  2600:3c03:6666:14::2  113.914 ms

    2600:3c03:6666:15::2  106.869 ms

    2600:3c03:6666:14::2  109.882 ms

12  prod3.lwn.net  102.734 ms  110.712 ms  111.329 ms


-- 
Make Music, Not War

Dave Täht
CTO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-831-435-0729

Re: [Cerowrt-devel] I got ipv6 on my cell tether this morning

[Michael Richardson]

Dave Taht <dave.taht@gmail.com> wrote:
    > I got a new phone for christmas, and was surprised to see I finally had an IPv6
    > allocation on my tether. More surprising was seeing fc:: used... and
    > while my laptop

Sounds like your phone has decided to use NAT66, as fc:: is a ULA.

--
]               Never tell me the odds!                 | ipv6 mesh networks [
]   Michael Richardson, Sandelman Software Works        |    IoT architect   [
]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [

Re: [Cerowrt-devel] I got ipv6 on my cell tether this morning

[Dave Taht]

No the phone has a real ipv6 address, the fc:: was from deeper inside
their net, and I'd thought they were not supposed to be used.

On Tue, Jan 28, 2020 at 9:52 AM Michael Richardson <mcr@sandelman.ca> wrote:
>
> Dave Taht <dave.taht@gmail.com> wrote:
>     > I got a new phone for christmas, and was surprised to see I finally had an IPv6
>     > allocation on my tether. More surprising was seeing fc:: used... and
>     > while my laptop
>
> Sounds like your phone has decided to use NAT66, as fc:: is a ULA.
>
> --
> ]               Never tell me the odds!                 | ipv6 mesh networks [
> ]   Michael Richardson, Sandelman Software Works        |    IoT architect   [
> ]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [
>


-- 
Make Music, Not War

Dave Täht
CTO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-831-435-0729

Re: [Cerowrt-devel] I got ipv6 on my cell tether this morning

[David P. Reed]

Good grief, can't we kill off NAT? IPv4.01 isn't IPv6.

What does the other end think your IPv6 source address is? Can your tethered systems pass addressable endpoints to the other end, and expect them to work? Or will there be STUN6/TURN6 needed to do, say, WebRTC peering?

On Tuesday, January 28, 2020 12:51pm, "Michael Richardson" <mcr@sandelman.ca> said:

> Dave Taht <dave.taht@gmail.com> wrote:
>     > I got a new phone for christmas, and was surprised to see I finally had an
> IPv6
>     > allocation on my tether. More surprising was seeing fc:: used... and
>     > while my laptop
> 
> Sounds like your phone has decided to use NAT66, as fc:: is a ULA.
> 
> --
> ]               Never tell me the odds!                 | ipv6 mesh networks [
> ]   Michael Richardson, Sandelman Software Works        |    IoT architect   [
> ]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [
> 
> _______________________________________________
> Cerowrt-devel mailing list
> Cerowrt-devel@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cerowrt-devel
> 

Re: [Cerowrt-devel] I got ipv6 on my cell tether this morning

[Dave Taht]

On Tue, Jan 28, 2020 at 11:03 AM David P. Reed <dpreed@deepplum.com> wrote:
>
> Good grief, can't we kill off NAT? IPv4.01 isn't IPv6.

It's astonishing how little ipv4 traffic I'm generating...

> What does the other end think your IPv6 source address is?

It's the real thing, I can get back and forth via tcp, at least, to
port 22 or netperfs port. I was really surprised to see port 25 not
blocked. (course without reverse dns most mailers will fail)

I worry (not on this laptop, but others) about all the other ports I
might have exposed like 53 or smb...

>Can your tethered systems pass addressable endpoints to the other end, and expect them to work?

tcp tested. udp tested. rather depressing watching every keystroke in
gmail going back to big brother over udp, actually...

Somewhere around here I have udplite for netperf. It would be pretty
cool if other protocol
numbers just worked...

> Or will there be STUN6/TURN6 needed to do, say, WebRTC peering?

Haven't tried that yet! I sure hope not. Being MITM is kind of a
billable event for some folk though....

I guess my overall thought was that folk in the us check...

>
> On Tuesday, January 28, 2020 12:51pm, "Michael Richardson" <mcr@sandelman.ca> said:
>
> > Dave Taht <dave.taht@gmail.com> wrote:
> >     > I got a new phone for christmas, and was surprised to see I finally had an
> > IPv6
> >     > allocation on my tether. More surprising was seeing fc:: used... and
> >     > while my laptop
> >
> > Sounds like your phone has decided to use NAT66, as fc:: is a ULA.
> >
> > --
> > ]               Never tell me the odds!                 | ipv6 mesh networks [
> > ]   Michael Richardson, Sandelman Software Works        |    IoT architect   [
> > ]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [
> >
> > _______________________________________________
> > Cerowrt-devel mailing list
> > Cerowrt-devel@lists.bufferbloat.net
> > https://lists.bufferbloat.net/listinfo/cerowrt-devel
> >
>
>


-- 
Make Music, Not War

Dave Täht
CTO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-831-435-0729