Shim6 vs PI addressing

David Barak thegameiam at
Thu Mar 2 06:52:07 UTC 2006

--- Iljitsch van Beijnum <iljitsch at> wrote:

> But the most important thing we should remember is
> that currently,  
> routing table growth is artificially limited by
> relatively strict  
> requirements for getting a /24 or larger. With IPv6
> this goes away,  
> and we don't know how many people will want to
> multihome then.

So why not approach Shim6 as something for basement
multihomers rather than enterprises?  Honestly, the
cost of the second connection is the limiting factor
in most decisions not to multihome today, not the
difficulty of getting BGP, an ASN, or a /24 from a

For your "I have a cablemodem AND a DSL" folks, Shim6
sounds like exactly what they need.  However, once you
start talking about enterprise-wide policies, etc,
Shim6 starts to look like a really heavy hammer.


David Barak
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