Re: draft-ietf-v6ops-addcon-03.txt ... ULAs of shorter-than-/48 and ULA multicast scope matching ...

[Fred Baker <fred@cisco.com>]

On Mar 8, 2007, at 10:33 AM, John Spence wrote:
> 1) Section 2.2, regarding ULAs, they are indeed defined as /48.  I  
> suggested to the ULA RFC writers that the length be relaxed,  
> allowing for ULAs of any prefix length, such that an organization  
> that had, say, a /44 routable could also generate a /44 ULA.

Silly question. What is the difference between one ULA of /44 and 16  
ULAs of /48 that are aggregatable to a /44? Never mind that RFC 4193  
wants you to do something different (section 3.2.1, first sentence) -  
within your own domain, just exactly what stops you from "randomly"  
generating the equivalent of a /44?