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by grosswait
205 days ago
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I have never seen a NAT implementation that forwarded every packet sent to it. As you stated in your first sentence, NAT forwards packets that match previous packets. Assuming it does that job well, that’s filtering right there. |
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Its just uncommon in consumer or prosumer devices.
A similar allegory is perhaps industrial washing machines vs consumer ones or that printer/scanner combos are common (even in offices) but print shops and people who actually need a lot of paper would have dedicated equipment that does either scanning or copying better.
It’s also like a leatherman, they all have some commonality (the need to be gripped) so theres a lot of combination; but a tradie would only use one as a last resort- often preferring a proper screwdriver.