UPnP is a bad idea that (fortunately) doesn't apply to IPv6 anyway.
You don't need UPnP if you'r not doing NAT.
wishful thinking.
you're likely to still have a staeful firewall and in the consumer
space
someone is likely to want to punch holes in it.
Yes, SI will still be needed. However, UPnP is, at it's heart a way
to allow
arbitrary unauthenticated applications the power to amend your security
policy to their will. Can you possibly explain any way in which such a
thing is at all superior to no firewall at all?
I would argue that a firewall that can be reconfigured by any applet a
user
clicks on (whether they know it or not) is actually less useful than no
firewall because it creates the illusion in the users mind that there
is a
firewall protecting them.
Owen