Well, for an IPv4 only home router, you don't really need a firewall since the N... | Hacker News

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		cm2187 on Nov 25, 2019 \| parent \| context \| favorite \| on: The Ripe NCC Has Run Out of IPv4 Addresses 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.

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