From the conclusion:
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.
I have the same issue (TRIPLE NAT’d! One of which is the CGNAT). Unfortunately I have external family that accesses from media boxes/TVs so those won’t work for me.
Thankfully I was able to get a small VPS server for $2/mo and set up some reverse tunnels with auto-ssh. Seems to be working fairly well so far.
All that said, I longingly look forward to the future when I don’t have to worry about NAT.
What’s really crappy is that my ISP which used to give me a public ipv4 and also supported ipv6 2as bought out, and now I’m on cgnat and ipv6 support has disappeared.
Fuck metronet, it’s not even cheap anymore