On Jan 31, 2011, at 11:41 PM, George Bonser wrote:
There are negligible benefits as far as I can tell from the vantage points of end systems to creating new private scope ipv4 regions at this late date.
Here, yes. In other places, maybe there are other factors. I am not saying I favor such a thing, just going through the exercise of thinking through how to deal with one when/if it appears and recognizing that such a thing could happen.
Imagine The Repressive Republic of Slobovia wants to absolutely control who talks to whom over that country's internet infrastructure (or, more accurately, who doesn't talk to whom). That is a fairly easy way of doing it. They absolutely control the entire addressing spectrum and if desired, nothing leaks. Now that isn't to say people don't find ways out, as they always will.
That's a really good reason NOT to provide this ability. There's no advantage to the global internet for facilitating such a thing. Owen