Re: /proc/sys/net/ipv[46]/conf/ issue unsolved

Yes, I understand that, but until the IFF_UP flag is set on the interface, it
doesn't really have any effect on the system as a whole.  You should be able to
undo any default setting that you want before you call ifup on the interface, or
am I missing something?

  If i understand what you are proposing, in that context you can't
undo before you set IFF_UP because the sysfs entries do not exist yet,
and undoing later is too late as in the case of auto-configuration for
instance the kernel might already have sent a RtSol.

  Hugo