as a purely technical matter.

On Thu, Oct 10, 2019 at 4:59 PM Frank Louwers <fr...@tembo.be> wrote:
...

Neither Cogent or HE buy transit from anybody else. They only peer
and have customers. They don't buy "fallback" traffic.
that doesn't match the perspective from my server inside cogent.

[cc3.tisf:i386] traceroute6 www.he.net
connect: No route to host

[cc3.tisf:i386] traceroute -q1 www.he.net
traceroute to he.net (216.218.186.2), 64 hops max, 40 byte packets
1  136.161.101.1 (136.161.101.1)  0.411 ms
2  te0-0-0-34.rcr22.iad03.atlas.cogentco.com (38.104.58.89)  0.862 ms
3  be3524.ccr42.dca01.atlas.cogentco.com (154.54.46.193)  1.940 ms
4  be2658.ccr22.iad02.atlas.cogentco.com (154.54.47.138)  2.572 ms
5  telia.iad02.atlas.cogentco.com (154.54.12.62)  2.964 ms
6  ash-bb3-link.telia.net (80.91.248.156)  2.664 ms
7  las-b24-link.telia.net (62.115.121.220)  59.839 ms
8  hurricane-ic-350467-las-b24.c.telia.net (62.115.181.194)  59.751 ms
9  100ge16-1.core1.pao1.he.net (184.105.81.101)  67.101 ms
10  100ge14-1.core3.fmt1.he.net (72.52.92.66)  84.628 ms
11  *
^C

whatever HE is doing to make themselves available through Telia for IPv4, they are not also doing to make themselves available for IPv6.

--
P Vixie

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