On 2010.03.16 17:01, Joel Jaeggli wrote:
On 03/16/2010 07:38 AM, Rick Ernst wrote:
Regurgitating the original e-mail for context and follow-up.
General responses (some that didn't make it to the list): - "There really is that much space, don't worry about it." - /48s for those that ask for it is fine, ARIN won't ask unless it's a bigger assignment - /52 (or /56) on smaller assignments for conservation if it makes you feel better - Open question on whether byte/octet-boundary assignment (/56 vs /52) is better for some reason
I haven't seen anything on the general feel for prefix filtering. I've seen discussions from /48 down to /54. Any feel for what the "standard" (widely deployed) IPv6 prefix filter size will be?
I filter at /48.
Although I'm small and insignificant, I do too.
I would consider filtering on something shorter for assignments of /32 or shorter if there were obvious bad behaver's. We do advertise more specific /36s but we also have the covering /32.
I think that it's going to filter down into a situation where people who can allow a prefix might change their policy, given that the originator is known. That doesn't mean that the next person in the chain will accept it though. For me, I'll accept /48's until one of two things happen: - the RIRs decide that they won't be handing them out anymore - that my routers can't handle the number of prefixes Other than that, I'd like to see /48 become a standard for acceptance. Steve