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I have been hearing this since the mid-90's and it finally got here. The last blocks of addresses have been assigned by the IANA to Regional Internet Registries this week.
But no big whoop, we will finally start moving in earnest to IPv6, but IPv4 will be around for a long time yet.
I think it stopped being an issue when people finally figured out how to configure private IP address spaces. And with the way computing is going (more colo/hosted/cloud) computing, I don't see IPv6 taking over any time soon.
IPv6 is taking hold outside the US more than here. The reason? The use developed IPv4, and has the more than it's share as compared to the rest of the world.
The original allotment of IP addresses for Africa (the whole thing) was a single class C address.
Private network addressing has bought a lot of time, and I noted that when helping a friend with his setup, the addresses assigned to his router from his ISP was also a private IP address. (DSL from AT&T).
The question is, will other ISP's adopt IPv6 or also move to assigning private IP's? Which would suck as then you couldn't setup port forwarding so you could access your system from the internet.
Do I want to move to IPv6? I don't for one simple reason. Because of the abundance of IPv6 addresses (5×1028 for every person on the planet) there is no NAT implementation, thus no SPI meaning that if your router is configured for 6to4 then every PC with an IPv6 address will be exposed to the internet.
I think it stopped being an issue when people finally figured out how to configure private IP address spaces. And with the way computing is going (more colo/hosted/cloud) computing, I don't see IPv6 taking over any time soon.
Good point. In the early days of Internet, I handled DSL support for GTE Business customers. Most would lease a block of 5 IP's but needing only one, configuring private addresses by router. They now lease only one IP.
Many units of internet real estate are still sparsely used, with only around 14 per cent actually been utilised, according to a study by the University of Southern California, published on Tuesday.
So if there was better utilization of IP addresses they wouldn't be exhausted....
Yep, there is still plenty of space, but those addresses are being sat on by many institutions (Universities have a ton of unused blocks). They are starting to recover them though, so I don't see the move being anytime soon.
Eventually yes, and more so than just a need for more, but the advantages of IPv6 are quite nice. I doubt any will live long enough to see IPv4 extinct, or even rarely used, but we will move to IPv6 slowly and surely due to its benefits.
Do I want to move to IPv6? I don't for one simple reason. Because of the abundance of IPv6 addresses (5×1028 for every person on the planet) there is no NAT implementation, thus no SPI meaning that if your router is configured for 6to4 then every PC with an IPv6 address will be exposed to the internet.
Not that big of an issue, they designed IPv6 taking into consideration the many benefits and security features to which NAT provided.
Here are some examples of NAT's protections and the features of IPv6.
Interesting link, I plan to go through it in detail, just not tonight.
As I have my CCNA certification, I may well be faced with setting this up at some point, on Cisco hardware running Cisco IOS. But even though I work on Cisco gear frequently, I don't have any at home, nor do I have an ASA or Proxy server for security. I enjoy developing ACL's, but that is me, they can be intimidating.
NAT is my first line of defense from all the crap on the internet. There is a real background radiation of many undesirable attacks that are stopped cold by NAT.
The concern is for those that depend on the $50 router/switch/AP and how these vendors implement the change and provide NAT like security. I suspect many home routers today ain't up to the task, primarily not having the resources to install firmware with the features.
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