FYI, my team is on it. Louie On Sat, Sep 13, 2025 at 3:35 AM Randy Bush via NANOG <nanog@lists.nanog.org> wrote:
i think that is because the target is google business fiber and you're home fiber. Why should that matter for routing tables?
maybe you did not look at the ripe atlas tracemon
https://archive.psg.com/250912.intra-gf-traces.jpg
which is a set of traces from probes ONLY WITHIN GOOGLE FIBER AS.
it shows one probe set able to reach the target and a lot of others not able to reach it. therefore the guess is that google fiber has at least two routing domains.
the target is a google business fiber customer. and up-thread you will see a google home fiber unable to reach the target.
oh, and this is v6 only. the target is reachable from anywhere in v4.
and the user, a friend, says this has been going on for months, with google fiber unable to debug it.
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