Internet Edge Router replacement - IPv6 route tablesizeconsiderations

Joe Maimon jmaimon at
Fri Mar 11 12:54:41 CST 2011

Valdis.Kletnieks at wrote:
> On Fri, 11 Mar 2011 09:38:12 EST, Joe Maimon said:
>> rfc3927 does not require 64 bits and works sufficiently well wherever it
>> is employed. SLAAC should be redesigned to be configurable to work with
>> however many bits are available to it and it should be a standard
>> feature to turn that knob all the way from on - off with 128 bit stops
>> in between.
> Feel free to explain how SLAAC should work on a /96 with 32 bits of host address
> (or any amount smaller than the 48 bits most MAC addresses provide).  Remember
> in your answer to deal with collisions.

Is there something fundamentally wrong with rfc3927?

> It's one thing to say "it should be redesigned". It's another matter entirely to actually
> come up with a scheme that doesn't suck even harder than "screw it, it's a /64".

I dont have to, its already been done. In ipv4.


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