Hi Daan, Please cherry-pick following commit from 4.4-forward.
Thanks!
commit 60e46293234cccea5d2bd31588123e65af3e9bad
Author: Sheng Yang <sheng.y...@citrix.com>
Date: Fri Jun 13 11:05:35 2014 -0700
CLOUDSTACK-6908: Enable IPv6 in sysctl when only necessary
This new way would only enable IPv6 when VR is created in IPv6 shared
network.
Otherwise IPv6 sysctl options remain disable.
--Sheng
