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Tue May 29 15:04:41 UTC 2007

>> That said- ARIN is handing out /48's- should we be blocking validly
>> assigned networks?
>
> your network might have to to protect it's valuable routing slots. There
> are places in the v4 world where /24's are not carried either. So, as Bill
> said just cause you get an allocation doesn't mean you can assure
> routability of it everywhere.
I understand the problems but I think there are clear cut cases where 
/48's make sense- a large scale anycast DNS provider would seem to be a 
good candidate for a /48 and I would hope it would get routed. Then again 
that might be the only sensible reason...

-Don