It seems to me that this entire discussion is based on the premise that renumbering is extremely slow, difficult, expensive and disruptive. This belief is probably justified given current technology. Our Chemistry department reported that they renumbered 20 workstations, and it was a week before anybody involved got any useful work done. One shudders to think what this means if extrapolated to the global Internet. However, if we could develop a technology which could make renumbering of a network (ie. a company, university or similar-sized unit) fast and efficient, this premise would break down and it would no longer be unreasonable to consider renumbering the organization when switching providers. Suppose, for example that Domain Names were sacred but a daemon could somehow touch every machine in a certain domain simultaneously and give it a new number, while simultaneously updating the routing tables that pointed into that domain? No, I don't have an RFC written, sorry, it's just an idea. -- Walt -------