Carrier Trick To Save IPv4 Could Help Spammers

Julie188 writes "As public IPv4 addresses dwindle and carriers roll out IPv6, a new problem has surfaced. We have to move through a gray phase where the only new globally routable addresses we can get are IPv6, but most public content we want to reach is still IPv4. Multiple-layers of NAT will be required to sustain the Internet for that time, perhaps for years. But use of Large Scale NAT (LSN) systems by service providers will cause problems for many applications and one of them is reputation filtering. Many security filtering systems use lists of public IPv4 addresses to identify 'undesirable' hosts on the Internet. As more ISPs deploy LSN systems, the effectiveness of these IPv4 filtering systems will be hurt."

inb4 NAT

[Anonymous Coward]

Keep all your bullshit about NAT saving the world in this thread where it can be ignored by people who actually know what they are talking about please.

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[account_deleted]

Comment removed based on user account deletion

Re:Not just spammers

[jamesh]

and the player learns that that's because his ISP is NATing their entire network, he's not going to be happy.

</reality>... and he goes to forums where such things are discussed and finds out that other users are using IPv6 and don't have problems like that and asks his ISP why they don't support IPv6. The ISP listens to their customers and makes rolling out IPv6 their #1 priority. IPv6 gets everywhere, world peace is finally achieved, and we enter a golden age of the internet.<reality>