24 Feb
2005
24 Feb
'05
10:09 p.m.
On 24-feb-05, at 21:23, Daniel Roesen wrote:
And it's extremely wasteful to use 2^96 addresses when only 1 is needed.
That's because of people's lazy and stupid habit of derriving policy from prefix length
In IPv4 it's a reasonable thing to do because enumerating all valid prefixes just isn't feasible.
Unfortunately still many people think (or just copied some random filter recommendation) that filtering ANY /48 is a good thing, and don't update filters.
Hm, maybe the read http://www.ripe.net/ripe/docs/ipv6-policies.html and saw: 4.3. Minimum allocation RIRs will apply a minimum size for IPv6 allocations to facilitate prefix-based filtering. The minimum allocation size for IPv6 address space is /32.