On 30/11/2012, at 9:31 AM, Randy Bush <randy@xxxxxxx> wrote: > hi geoff, > > i get your point. but it sure is convenient to find everything in one > place. can your issues be addressed by adding an attribute(s) to the > entries? Convenience vs maning a semantic distinction overt. Yes, it is possible to add an attribute to a common registry. On the other hand it is possible to realign what entries go in which registry according to: - "reservations" to be in the "main" registry, using a working definition of a "reservation" as something that all implementations of the protocol have to honour. - all other IANA special purpose address assignments to be placed in this special purpose registry (including, for example RFC1918 space, 6to4 relays, etc), and the RFC to document the process of special purpose assignment. Geoff