Most home routers that support ipv6 still act as firewall.

Symbiote · on Nov 25, 2019

Let's not create uncertainty here: All home routers that support IPv6 include a firewall, and it's active by default.

(Have you ever seen even an old IPv4-only home router that didn't include a firewall? I haven't.)

buckminster · on Nov 25, 2019

I was going to say yes, back in 2001. But thinking about it, it was actually an ADSL modem, not a router. My Windows 2000 box was p0wned in about 30 seconds!

cm2187 · on Nov 25, 2019

Well, for an IPv4 only home router, you don't really need a firewall since the NAT acts as a natural firewall (though even models from the 90s have firewall specific features like fixed port forwarding). Which is why I think some people assume that the absence of NAT will imply the absence of firewall.

behringer · on Nov 25, 2019

Port forwarding is still a bit of a NAT feature tho on these routers.

On a real firewall, generally you don't reroute a port to a different IP, you just pass or fail the packet.