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[66.111.4.227]) by smtp.gmail.com with ESMTPSA id x2sm4793416qki.46.2020.08.23.10.40.37 for <9fans@9fans.net> (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 23 Aug 2020 10:40:37 -0700 (PDT) Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailauth.nyi.internal (Postfix) with ESMTP id 9406727C0054 for <9fans@9fans.net>; Sun, 23 Aug 2020 13:40:36 -0400 (EDT) Received: from imap24 ([10.202.2.74]) by compute4.internal (MEProxy); Sun, 23 Aug 2020 13:40:36 -0400 X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduiedrudduiedguddujecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecunecujfgurhepofgfggfkjghffffhvffutgesth dtredtreertdenucfhrhhomhepfdffrghvihguucguuhcuveholhhomhgsihgvrhdfuceo tdhinhhtrhhosehgmhgrihhlrdgtohhmqeenucggtffrrghtthgvrhhnpeeltdeggfdtte dttdffgfeuveefhfejgeejhedvkefgjefhtefhgeegheekkeelvdenucffohhmrghinhep lehlvghgrggthidrohhrghenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmh grihhlfhhrohhmpegujhgtodhmvghsmhhtphgruhhthhhpvghrshhonhgrlhhithihqdek heekieduudehvddqudeluddtheejhedvqddtihhnthhroheppehgmhgrihhlrdgtohhmse gsihhtsgdrlhht X-ME-Proxy: Received: by mailuser.nyi.internal (Postfix, from userid 501) id 21C482000A3; Sun, 23 Aug 2020 13:40:36 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.3.0-214-g5a29d88-fm-20200818.002-g5a29d882 Mime-Version: 1.0 Message-Id: In-Reply-To: References: Date: Sun, 23 Aug 2020 19:40:15 +0200 From: "David du Colombier" <0intro@gmail.com> To: 9fans@9fans.net Subject: Re: [9fans] IP routing problems on GCP Content-Type: text/plain Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: c538a000-e567-11ea-9b00-d5828d287641 > 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? Yes, but only using a local file server. I've never tried to boot Plan 9 from a remote file server so far. > 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. 9legacy includes a patch that considers 32 mask as 0. http://9legacy.org/9legacy/patch/ip-ipconfig-mask.diff -- David du Colombier