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Sun, 23 Aug 2020 06:34:06 -0700 (PDT) MIME-Version: 1.0 From: Kyohei Kadota Date: Sun, 23 Aug 2020 22:33:55 +0900 Message-ID: Subject: IP routing problems on GCP To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset="UTF-8" Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: 5521c4c6-e545-11ea-a2fc-f2b13d6416ff Hi. I'm migrating my 9legacy machines to GCP but my auth/cpu servers can't get root from the fileserver. Is there someone that is using full system Plan 9 on GCP? Notes: - DHCP of VPC network on GCP sends ipmask=/32 options to that client. - If ipmask is /32 then ip/ipconfig ignores it. - Therefore each instance can't reach other instances in the same region. In my experience, the communications works only if /net/ipifc is configured from /lib/ndb/local by ip/ipconfig -N, its ipmask is /20, and it is added to /net/iproute manually that the routes to other instances, but in this case, the cpu/auth servers couldn't reach to the fs because nothing to add the routes before getting root. -- kadota