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Date: Tue, 13 Jun 2017 22:57:27 -0400 (EDT)
From: Garrett Wollman <wollman@hergotha.csail.mit.edu>
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To: rpaulo@me.com
Cc: freebsd-net@freebsd.org
Subject: Re: Enable IPv6 Privacy Extensions by default
References: <20170611215904.4612ee41@kalimero.tijl.coosemans.org>
 <D05BDD5A-F7ED-4DFE-8835-DE444A12C771@lists.zabbadoz.net>
 <20170612131912.42537b13@kalimero.tijl.coosemans.org>
 <1497408664.2220.3.camel@me.com>
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In article <1497408664.2220.3.camel@me.com>, rpaulo@me.com writes:

>I don't see any reason why we shouldn't have privacy addresses enabled
>by default.  In fact, back in 2008 no one voiced their concerns.

Back in 2008 most people hadn't had their networks fall over as a
result of MLD listener report implosions when a thousand machines
report (via multicast, natch) their eight[1] single-member
solicited-node multicast groups in the space of a few seconds.

-GAWollman

[1] Assuming the vendor actually implemented the thing correctly.
Some of us have seen what happens when one machine reports eight
hundred single-member solicited-node multicast groups in the space of
a few milliseconds.