I've read over this draft, and I find it very confusing. The title of the draft is "Limited Range Addressing Requirements". However, as one goes through the document, there is both justification and requirements. What time is spent on the justification for "limited range" addressing is using IPv4 and NOT IPv6 logic. In part I presume this is due to somebody's notion of IPv6 registry policies. I'm not sure. But here are a few "for instances":
There is a strong requirement for an easy-to-get, stable, private address space for use within a limited range. Reasons include:
o avoid costs associated with running a registration infrastructure
I've done this job for a very large company, as have many of you. I presume what you are talking about above is the management of network allocations. That doesn't stop whether or not one uses site-locals XXX errr.. limited range addressing. It does get easier with IPv6 given the fixed amount of space hosts have. The vast majority of time is spent allocating and reallocating that which has already been assigned by the upstream authority. Only rarely is there any interaction needed with an upstream for additional allocations. It is a low frequency operation not to be optimized for.
o avoid exposing internal network plans to competitors
This is a procedural artifact of IPv4 that I have to believe can be gotten around. In fact it probably could have been gotten around with IPv4 using existing auditing business relationships.
Before I go through the remainder of the document on this list (and I believe I have substantial disagreement) I'd request the authors update the Terminology section to include at least the following definitions:
1. "limited range" -- in particular, what is the semantic difference between these and SLs?
2. Redo "range" as its current definition doesn't help me much.
3. "validity" or "valid"
4. "filter" or "filtering"
Thanks,
Eliot
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