Addressing plan exercise for our IPv6 course

Karl Auer kauer at biplane.com.au
Sat Jul 24 18:19:26 UTC 2010


On Sat, 2010-07-24 at 18:49 +0100, Brandon Butterworth wrote:
> > Did you mean something like this maybe ?:
> > 
> > http://www.sixxs.net/tools/grh/ula/
> 
> Q.E.D.
> 
> The RFC seeks to avoid a registry so we end up with the potential for
> many as a result. May as well have had ARIN do it officially in the
> first place so there'd only be one.

The RFC provides for two address ranges in fc00::/7, one for random
prefixes (fc00::/8), the other reserved for later management (fd00::/8).

Sixxs "manages" prefixes from within the random one, there is as yet
nothing set up to properly manage the other one. Dunno why ARIN should
necessarily manage it; or any particular RIR for that matter.

The "random" one allows for swift, bureaucracy-free self-allocation. The
more important it is to you that your allocation be unique, the more
careful you will be to choose a truly random one. The chance that any
random prefix will conflict with any chosen prefix is very, very small.
The chance that two conflicting prefixes would belong to entities that
will ever actually interact is even smaller. Makes it an interesting
question as to whether the managed range is really necessary at all.

Regards, K.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Karl Auer (kauer at biplane.com.au)                   +61-2-64957160 (h)
http://www.biplane.com.au/~kauer/                  +61-428-957160 (mob)

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