On Jan 22, 2010, at 9:52 AM, Richard Barnes wrote: > Would it make sense for the RIRs to just carve out the bad parts of > the blocks, instead of IANA? Under current policy, would reserving > "bad" bits make it more difficult for an RIR to get additional > allocations?
Under existing policies, there is no way for IANA to carve out pieces of address blocks. The /8s with pieces carved out of them by the IETF are/will be allocated to RIRs with an understanding that the RIRs aren't supposed to allocate the IETF-designated reserved chunks (which, presumably, they won't). Regards, -drc