I’m not sure if consumer hardware commonly supports this, or if it does what kind of firewalling they might do, so I have some slight doubt that IPv6 actually makes the problem Bore solves go away. I probably wouldn’t want every device on my network publicly routable even if it were possible — so even without NAT/port forwarding, there’s still a firewall to configure.
All of my desktops and servers and laptops each have their own firewall, and this is good enough to protect against naughty programs who bind to INADDR_ANY instead of ::1 or a uds. I don't need to waste memory and latency on the router doing connection tracking that doesn't buy anything.
> I’m not sure if consumer hardware commonly supports this,
I have not run across consumer hardware that doesn't. I just tried a bunch of netgear, asus, and tplink kit and it was all fine. I've only run into a few ISPs that it didn't work with, and in every case a phone call was able to sort things out (because it had nothing to do with the consumer equipment). I suspect strongly that almost all consumer hardware commonly supports this.
Sure, but there are plenty of devices on my network that I don’t have that sort of control over (i.e. my light bulbs).
Yes, this is what I've noticed with consumer, ISP-provided routers in France. I think it's a rather good thing, although those same routers usually come with UPnP turned on...
This has nothing to do with the router and more to do with your ISP. I had a UK provider which did that, but it was easy to swap their router (I did have to give them a call though). Here in Portugal the ISP-provided router was fine, so I am happy to use it.
