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Submission + - IPv6 Transition: Carrier-Grade NAT

caius112 writes: I've tried searching for information about the precise drawbacks of massive carrier-grade NAT-ing, which may be to come in the following months. Nothing close to exhausting comes up, so I guess it's time to Ask Slashdot.

My main concerns are: Roughly how many users are going to share one public IP? Is this going to break bittorrent, Skype, or other p2p applications? If yes, how could an ISP ever get away with it? Millions of people use these applications every day. There are privacy concerns as well: if someone sharing a public IP with me does something nasty on the internet, could I be dragged into it? Sounds scary. Also, I'm an avid gamer, and many of my online games have servers that ban hackers by IP — I assume I would get banned along with them?

Finally, if all of the above fears prove true, do you think that ISPs are still actually going to roll with massive NAT-ing?

Some people have a great ambition: to build something that will last, at least until they've finished building it.