Slashdot Mirror
UK ISP PlusNet Testing Carrier-Grade NAT Instead of IPv6
judgecorp writes "Faced with the shortage of IPv4 addresses and the failure of IPv6 to take off, British ISP PlusNet is testing carrier-grade network address translation CG-NAT, where potentially all the ISP's customers could be sharing one IP address, through a gateway. The move is controversial as it could make some Internet services fail, but PlusNet says it is inevitable, and only a test at this stage."
Regarding the failure of IPv6, these graphs imply otherwise.
Dual-stack deployment with NAT'd IPv4 alongside with IPv6 is the only viable short-term option for consumer ISPs. You can't just cut off people from the IPv4 internet, you'd leave them with a pretty much useless internet connection.
This may be a feature and not a bug to these ISPs.
The business has changed. They are probably fine with screwing up incoming services. They can charge to fix what they screwed up by using NAT.
Rather than doing this correctly, it will go like this. All "home" users will get CG-NAT. "Business" users will be allowed public IPs at a steep premium, and only when that possibility is completely exhausted, will IPv6 truly begin to be implemented. Hell, people might just use duct tape code and NAT subterfuge to drag this out another decade or two.
Consumer grade network connections do not run servers.
A far bigger problem is that a lot of internet services these days use IP-based blocks as the final "brute force" version of "you are abusing the service, go away". It would really suck to be under an ISP that shows every customer coming from a single IP. You'd find yourself banned from all kinds of random places as soon as someone using the same ISP decides to be an idiot.
How the hell does slashdot.org not support IPV6, I thought this was a tech website?
Yes they do, pretty regularly. Ever played a multiplayer game?
-- "So they told me that using the download page to download something was not something they anticipated." - Bill Gates
So what happens when the "copyright enforcement agencies" decide that somebody on that NAT IP has downloaded a movie and three strikes or something similar gets kicked in for the IP? (I know it's perfectly possible given port, IP, and Time to back-track a connection through a properly-logged NAT.Just an amusing side effect if somebody is dumb, and dumb happens a lot these days.)
@Whee
That will be a problem of the ISP then, if their customers can't use legitimate services because the ISP can't differentiate between the culprit and the innocent customers, the ISP has a problem. The ISP then has to have either a very good customer management which allows to disconnect culprits very fast without too many false positives, or the ISP has to introduce some kind of class ips, where the customers without complains share the "good ip", and customers with some bad stains get degraded to other, partly blacklisted IPs.
Do you really think any ISPs are going to take on these kinds of responsibilities? You're expecting them to basically be moderators for every forum on the Internet. Aside from the fact that they *shouldn't* be doing this (they should be dumb pipes), they also don't *want* to do this because it's logistically impossible and would open them up to potential legal liability.
There should be a Kickstarter campaign to create an ISP that is actually named Big Dumb Pipe with promises not to up sell, or offer 'cloud storage', or offer security suites to protect your snowflakes, or pretend to be a content creator, but merely provide access and up time, for they are only a Big Dumb Pipe (tm). Oh; and no caps or throttling.