Re: Why ULA: low collision chance (Was: IPv6 fc00::/7 — Unique local addresses)

Jack Bates jbates at
Sat Oct 23 08:54:35 CDT 2010

On 10/23/2010 2:07 AM, Owen DeLong wrote:
> However, deliberate routing of ULA will start small and slowly spread
> over time like a slow-growing cancer. You won't even really detect it
> until it has metastasized to such an extent that nothing can be done
> about it.

Which is why all v6 templates really need to get this in as a 
discard/filter/etc, just as we do with RFC-1918. I'm not saying it is 
perfect, but based on how much bogon lists have hurt legitimate traffic, 
we know the templates are at least used.


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