NAT may be a good short term solution to the address depletion and scaling problems. This is because it requires very few changes and can be installed incrementally. NAT has several negative characteristics that make it inappropriate as a long term solution, and may make it inappropriate even as a short term solution. Only implementation and experimentation will determine its appropriateness.

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[–] frezik@midwest.social 2 points 5 months ago

It tried to fix everything wrong with IPv4, like shitty multicasting. This made it extra complicated.

If it had just been 128-bit addresses, it probably would have been widely deployed in the 90s. Don't need to bother at this point, though, just get it done.