Tony Li wrote: I think the real question is whether aggregates are required at all. If so, then I think we have an issue that leads us down the NAT path.
Now, if someone has some mapping technology that does not require aggregation at all (DHTs?), then there is a possible alternate to NATs. In answering: This is exactly the key point of my approach: forwarding without being based on aggregates of Unicast user addresses. Address aggregation is a problem just because of the huge quantity. Additionally, it is principally wrong in view of user mobility and eventually router mobility. Heiner
