North American Network Operators Group
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Re: IPv6 Advertisements

  • From: Donald Stahl
  • Date: Tue May 29 19:14:22 2007

Don't give people an excuse to deagg their /32 
RIPE may only give out /32's but ARIN gives out /48's so there wouldn't be
any deaggregation in that case.


That's not what I said. If /48 are accepted by * then people with
a /32 or whatever will deagg to /48.
I understand now that you were referring strictly to filter limits- I misinterpreted you original post. My apologies.

Obviously you don't need to accept /48's from anywhere- you can restrict it to the PI pool- then /32's don't deaggregate but networks approved by ARIN or RIPE or whomever still work.

You get one shot at fixed prefix size filters, miss and you'll pay
forever. Which is more scarce, /32's or routing table entries.
If we start giving out /32's to work around filters I'm not sure that solves any problems :) And if no one is going to honor a /48 then why bother to give them out?

-Don