Re:IPv6 Is Hard
by icedchai on Sunday February 16, 2025 @06:58PM
(#43073167)
When most people say "NAT", in the home user / consumer sense, they really mean "PAT": ports mapping to multiple private IPs using a single public IP.
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"PAT" is not doing any firewalling either.
(It does rely on state tracking, which it shares in common with stateful firewalls, but you could run a LAN with either a stateless firewall or no firewall if you really wanted to meet the "nothing in common with a firewall" requirement.)