[ppml] [address-policy-wg] Those pesky ULAs again
Wilfried Woeber, UniVie/ACOnet Woeber at CC.UniVie.ac.at
Tue May 29 13:08:49 CEST 2007
Shane Kerr wrote: [...] > > If you insist on ULA central, my preferred implementation is a web > page where you click on a button that says "give me a ULA prefix" and > it allocates a random prefix that is not in use, and prints it on the > screen. The only implementation question I'm not sure about is whether > the list of allocated prefixes would be public or not; I lean towards > making it public, although there is a (small) privacy concern. I think > the cost of this implementation is low enough you could find a group > of volunteers to host the system. My take on this is that (general) ULA is supposed to provide access to "almost" unique prefixes. This can be managed in a distributed way. The "central" thing is supposed to take care of the 10^-<whatever> chance that your's is used by someone else, too. Thus it is only (more) useful (than general ULA) if the distribution environment can guarantee uniqueness. Such a guarantee involves management and review, and complaint handling - eventually, plus protection against DoS-Attempts and legal protection. I am not convinced that a simple (=cheap / for free) mechanism is "good enough". > -- > Shane Wilfried.