nanog mailing list archives

RE: IPv6 deployment excuses


From: Spencer Ryan <sryan () arbor net>
Date: Sat, 2 Jul 2016 12:07:55 -0400

Windows 8 and 10 with the most recent service packs default the firewall to
on with very few inbound exemptions.

On Jul 2, 2016 11:38 AM, "Keith Medcalf" <kmedcalf () dessus com> wrote:


There is no difference between IPv4 and IPv6 when it comes to
firewalls and reachability. It is worth noting that hosts which
support IPv6 are typically a lot more secure than older IPv4-only
hosts. As an example every version of Windows that ships with IPv6
support also ships with the firewall turned on by default.

Just because the firewall is turned on does not mean that it is configured
properly.

Every version of Windows that ships with IPv6 support also ships with the
Firewall configured in such a fashion that you may as well have it turned
off.

This is especially true in Windows 8 and later where the firewall is
reconfigured without your permission by Microsoft every time you install
any update whatsoever back to the "totally insecure" default state -- and
there is absolutely no way to fix this other than to check, every single
minute, that the firewall is still configured as you configured it, and not
as Microsoft (and their NSA partners) choose to configure it.

All versions of Windows 8 and later whether using IPv4 or IPv6 are
completely unsuitable for use on a network attached to the Internet by any
means (whether using NAT or not) that does not include an external (to
Windows) -- ie, in network -- statefull firewall over which Windows,
Microsoft, (and their NSA partners) have no automatic means of control.  If
you allow UPnP control of the external statefull firewall from Windows
version 8 or later, you may as well not bother having any firewall at all
because it is not under your control.







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