Tony Hain wrote:
Your initial comment related to enterprises. Enterprises don't change providers all that often. But even if they did, we have the tools to readdress devices in IPv4 -- it's called DHCP. It could *even* be used in conjunction with mobile-ip, and not just for the FA. Thus, one uses one mechanism for mobility, another one for a stable identifier, and for that matter, perhaps a third for micromobility. This falls under the classification of "the right tool for the right job".Eliot Lear wrote:Over time we still have DNS to allow for people to make changes. This means that one has to work the transition such that prefixes can change at the convenience of the end user.
My name does not change when I move or change cell providers, but it is still painful and expensive to touch every place that has the name to address mapping. Multiply that for larger enterprises, and the numbers get big enough for budget watchers to notice.
Let's back up:Also, we already see a market for email redirection, where an email address can stay consistent over ISP changes. Clearly some people don't want to deal with changing the mappings from their name to the locator info if they don't have to, and large enterprises do this all the time by registering their own names rather than taking a subdomain from the ISP. In any case, DNS is not the only place names are translated into addresses, so we must not base an approach on the assumption that it is.