NAT is done on your router. There is no difference with IPv6 firewall except doe... | Hacker News

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		ianburrell on Feb 14, 2025 \| parent \| context \| favorite \| on: NAT Is the Enemy of Low Power Devices NAT is done on your router. There is no difference with IPv6 firewall except doesn't do NAT. Are you thinking about CGNAT which is done by the ISP? That results in double NAT which causes problems.

PhilipRoman on Feb 14, 2025 [–]

You're right, I was thinking of CGNAT. My ISP definitely does it (they have far more users than IP allocations) and my router does NAT as well, so I guess I have a double NAT.

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