Thus spake "Joe Baptista" <baptista@DOT-GOD.COM> > well what i've heard is that it what we in business call the old screw up. > they forgot the law while they were handing out address space. > > cerf explained it very well. they are powerless to do anything. i can > see a IPv4 union of users coming together. his exact words were > > "The problem with trying to reclaim (re-possess) IP address space is > enforcement. One has to find a way to stop someone from "advertising" the > assigned address space in the global routing tables before one can > effectively re-use the address space. Unless the party cooperates by > ceasing to advertise the space, assigning it to another party who > advertises this address space will cause inconsistent routing to one or > the other of the advertising networks." Revoking the IN-ADDR.ARPA delegation for the addresses certainly makes them less functional. There's nothing stopping anyone from advertising any address space they want today anyways. Advertising "revoked" address space is just a special case. S