I'm wondering why nobody proposed a very simple solution for the conflict beteen "economical" model of address allocation (i.e. address space trading) and the need for hierarchical addressing: allow ownership of the _amount_ of address space, but leave definition of exact addresses to the exising allocation mechanisms through upstream ISPs. This way if you show an ISP that you have a title for, say, /25 block, they _have_ to allocate you addresses from their address space; correspondingly, their upstream provider, or ARIN _have_ to increase their allocation if they have shown that their customers posess titles to fill their existing allocation. Then, organizations (or their liquidators) can trade the address space without breaking the route aggregation. The obvious problem is what to do with poor countries. --vadim